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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2016	Jul. 25, 2016
Document And Entity Information [Abstract]
Document type	10-Q
Amendment flag	false
Document period end date	Jun. 30, 2016
Document fiscal year focus	2016
Document fiscal period focus	Q2
Trading symbol	blkb
Entity registrant name	BLACKBAUD INC
Entity central index key	0001280058
Current fiscal year end date	--12-31
Entity filer category	Large Accelerated Filer
Entity common stock, shares outstanding		47,518,682

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 15,263	$ 15,362
Restricted cash due to customers	195,034	255,038
Accounts receivable, net of allowance of $4,386 and $4,943 at June 30, 2016 and December 31, 2015, respectively	107,749	80,046
Prepaid expenses and other current assets	53,797	48,666
Total current assets	371,843	399,112
Property and equipment, net	54,144	52,651
Software development costs, net	27,793	19,551
Goodwill	436,012	436,449
Intangible assets, net	273,445	294,672
Other assets	21,847	20,901
Total assets	1,185,084	1,223,336
Current liabilities:
Trade accounts payable	27,817	19,208
Accrued expenses and other current liabilities	44,739	57,461
Due to customers	195,034	255,038
Debt, current portion	4,375	4,375
Deferred revenue, current portion	250,449	230,216
Total current liabilities	522,414	566,298
Debt, net of current portion	398,865	403,712
Deferred tax liability	27,823	27,996
Deferred revenue, net of current portion	6,212	7,119
Other liabilities	8,102	7,623
Total liabilities	963,416	1,012,748
Commitments and contingencies (see Note 10)
Stockholders' equity:
Preferred stock; 20,000,000 shares authorized, none outstanding	0	0
Common stock, $0.001 par value; 180,000,000 shares authorized, 57,543,656 and 56,873,817 shares issued at June 30, 2016 and December 31, 2015, respectively	58	57
Additional paid-in capital	294,810	276,340
Treasury stock, at cost; 10,048,472 and 9,903,071 shares at June 30, 2016 and December 31, 2015, respectively	(207,898)	(199,861)
Accumulated other comprehensive loss	(1,640)	(825)
Retained earnings	136,338	134,877
Total stockholders' equity	221,668	210,588
Total liabilities and stockholders' equity	$ 1,185,084	$ 1,223,336

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 4,386	$ 4,943
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	180,000,000	180,000,000
Common stock, shares issued	57,543,656	56,873,817
Treasury stock, shares	10,048,472	9,903,071

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenue
Subscriptions	$ 104,039	$ 80,009	$ 200,890	$ 152,522
Maintenance	37,449	38,627	74,609	77,523
Services	35,419	33,667	67,833	64,973
License fees and other	3,284	3,956	6,115	8,234
Total revenue	180,191	156,259	349,447	303,252
Cost of revenue
Cost of subscriptions	52,142	39,400	101,814	75,578
Cost of maintenance	5,685	6,969	11,008	14,471
Cost of services	24,696	25,915	49,015	52,886
Cost of license fees and other	1,020	1,146	1,622	2,307
Total cost of revenue	83,543	73,430	163,459	145,242
Gross profit	96,648	82,829	185,988	158,010
Operating expenses
Sales, marketing and customer success	39,308	29,723	74,922	58,285
Research and development	22,578	20,166	45,357	41,442
General and administrative	19,857	17,955	39,613	34,798
Amortization	708	524	1,460	1,012
Total operating expenses	82,451	68,368	161,352	135,537
Income from operations	14,197	14,461	24,636	22,473
Interest expense	(2,721)	(1,873)	(5,396)	(3,559)
Other expense, net	(65)	(1,274)	(170)	(1,561)
Income before provision for income taxes	11,411	11,314	19,070	17,353
Income tax provision	3,598	4,272	6,262	6,026
Net income	$ 7,813	$ 7,042	$ 12,808	$ 11,327
Earnings per share
Basic (in dollars per share)	$ 0.17	$ 0.15	$ 0.28	$ 0.25
Diluted (in dollars per share)	$ 0.17	$ 0.15	$ 0.27	$ 0.24
Common shares and equivalents outstanding
Basic weighted average shares	46,083,055	45,579,345	46,047,788	45,554,645
Diluted weighted average shares	46,927,626	46,402,707	46,865,218	46,289,440
Dividends per share (in dollars per share)	$ 0.12	$ 0.12	$ 0.24	$ 0.24
Other comprehensive (loss) income
Foreign currency translation adjustment	$ (431)	$ (196)	$ (28)	$ (522)
Unrealized (loss) gain on derivative instruments, net of tax	(118)	97	(787)	(372)
Total other comprehensive loss	(549)	(99)	(815)	(894)
Comprehensive income	$ 7,264	$ 6,943	$ 11,993	$ 10,433

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities
Net income	$ 12,808	$ 11,327
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	35,549	27,272
Provision for doubtful accounts and sales returns	2,264	2,934
Stock-based compensation expense	15,787	11,413
Excess tax benefits from exercise and vesting of stock-based compensation	(2,729)	(954)
Deferred taxes	(129)	(801)
Loss on sale of business	0	(1,976)
Amortization of deferred financing costs and discount	478	420
Other non-cash adjustments	(429)	289
Changes in operating assets and liabilities, net of acquisition of businesses:
Accounts receivable	(30,097)	(13,355)
Prepaid expenses and other assets	(6,011)	(2,102)
Trade accounts payable	8,857	5,235
Accrued expenses and other liabilities	(18,019)	(9,882)
Restricted cash due to customers	62,038	78,718
Due to customers	(62,038)	(78,718)
Deferred revenue	19,658	13,792
Net cash provided by operating activities	37,987	47,564
Cash flows from investing activities
Purchase of property and equipment	(12,569)	(7,014)
Capitalized software development costs	(12,168)	(6,982)
Purchase of net assets of acquired companies, net of cash	530	0
Net cash used in sale of business	0	(521)
Net cash used in investing activities	(24,207)	(14,517)
Cash flows from financing activities
Proceeds from issuance of debt	120,900	70,100
Payments on debt	(126,088)	(93,388)
Proceeds from exercise of stock options	5	18
Excess tax benefits from exercise and vesting of stock-based compensation	2,729	954
Dividend payments to stockholders	(11,398)	(11,255)
Net cash used in financing activities	(13,852)	(33,571)
Effect of exchange rate on cash and cash equivalents	(27)	(984)
Net decrease in cash and cash equivalents	(99)	(1,508)
Cash and cash equivalents, beginning of period	15,362	14,735
Cash and cash equivalents, end of period	$ 15,263	$ 13,227

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common stock [Member]	Additional paid-in capital [Member]	Treasury stock [Member]	Accumulated other comprehensive loss [Member]	Retained earnings [Member]
Balance at Dec. 31, 2014	$ 185,916	$ 56	$ 245,674	$ (190,440)	$ (1,032)	$ 131,658
Balance (in shares) at Dec. 31, 2014		56,048,135
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	25,649					25,649
Payment of dividends	(22,508)					(22,508)
Exercise of stock options and stock appreciation rights and vesting of restricted stock units (in shares)		202,078
Exercise of stock options and stock appreciation rights and vesting of restricted stock units	32		32
Surrender of shares upon vesting of restricted stock and restricted stock units and exercise of stock appreciation rights	(9,421)			(9,421)
Excess tax benefits from exercise and vesting of stock-based compensation	5,466		5,466
Stock-based compensation	25,246		25,168			78
Restricted stock grants	1	$ 1
Restricted stock grants (in shares)		736,252
Restricted stock cancellations (in shares)		(112,648)
Other comprehensive income (loss)	207				207
Balance at Dec. 31, 2015	210,588	$ 57	276,340	(199,861)	(825)	134,877
Balance (in shares) at Dec. 31, 2015		56,873,817
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	12,808					12,808
Payment of dividends	(11,398)					(11,398)
Exercise of stock options and stock appreciation rights and vesting of restricted stock units (in shares)		225,653
Exercise of stock options and stock appreciation rights and vesting of restricted stock units	5		5
Surrender of shares upon vesting of restricted stock and restricted stock units and exercise of stock appreciation rights	(8,037)			(8,037)
Excess tax benefits from exercise and vesting of stock-based compensation	2,729		2,729
Stock-based compensation	15,787		15,736			51
Restricted stock grants	1	$ 1
Restricted stock grants (in shares)		510,936
Restricted stock cancellations (in shares)		(66,750)
Other comprehensive income (loss)	(815)				(815)
Balance at Jun. 30, 2016	$ 221,668	$ 58	$ 294,810	$ (207,898)	$ (1,640)	$ 136,338
Balance (in shares) at Jun. 30, 2016		57,543,656

Consolidated Statements of Stockholders' Equity (Parenthetical) - shares	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Statement of Stockholders' Equity [Abstract]
Surrender of shares upon vesting of restricted stock and restricted stock units and exercise of stock appreciation rights	145,401	163,017

Organization

6 Months Ended

Jun. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization

1. Organization

We are the world’s leading cloud software company powering social good. Serving the entire social good community—nonprofits, foundations, corporations, education institutions, and individual change agents—we connect and empower organizations to increase their impact through software, services, expertise, and data intelligence. Our portfolio is tailored to the unique needs of vertical markets, with solutions for fundraising and relationship management, digital marketing, advocacy, accounting, payments, analytics, school management, grant management, corporate social responsibility and volunteerism. Serving the industry for more than three decades, we are headquartered in Charleston, South Carolina and have operations in the United States, Australia, Canada, Ireland and the United Kingdom. As of June 30, 2016, we had approximately 35,000 active customers.

Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2016

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Unaudited interim consolidated financial statements

The accompanying interim consolidated financial statements have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission ("SEC") for interim financial reporting. These consolidated statements are unaudited and, in the opinion of management, include all adjustments (consisting of normal recurring adjustments and accruals) necessary to state fairly the consolidated balance sheets, consolidated statements of comprehensive income, consolidated statements of cash flows and consolidated statements of stockholders’ equity, for the periods presented in accordance with accounting principles generally accepted in the United States ("GAAP"). The consolidated balance sheet at December 31, 2015, has been derived from the audited consolidated financial statements at that date. Operating results and cash flows for the six months ended June 30, 2016 are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2016, or any other future period. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted in accordance with the rules and regulations for interim reporting of the SEC. These interim consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2015, and other forms filed with the SEC from time to time.

Reclassifications

In order to provide comparability between periods presented, "interest income", "loss on sale of business", "loss on debt extinguishment and termination of derivative instruments" and "other income (expense), net" have been combined within "other expense, net" in the previously reported consolidated statements of comprehensive income to conform to presentation of the current period. See Note 7 to these consolidated financial statements for additional details.

Basis of consolidation

The consolidated financial statements include the accounts of Blackbaud, Inc. and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.

Use of estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting periods. On an ongoing basis, we reconsider and evaluate our estimates and assumptions, including those that impact revenue recognition, long-lived and intangible assets including goodwill, stock-based compensation, the provision for income taxes, deferred taxes, capitalization of software development costs and related amortization, our allowances for sales returns and doubtful accounts, deferred sales commissions and professional services costs, valuation of derivative instruments, accounting for business combinations and loss contingencies. Changes in the facts or circumstances underlying these estimates could result in material changes and actual results could materially differ from these estimates.

Revenue recognition

Our revenue is primarily generated from the following sources: (i) charging for the use of our software solutions in cloud-based and hosted environments; (ii) providing software maintenance and support services; (iii) providing professional services including implementation, training, consulting, analytic, hosting and other services; (iv) providing transaction and payment processing services; and (v) selling perpetual licenses of our software solutions.

We recognize revenue when all of the following conditions are met:

•Persuasive evidence of an arrangement exists;

•The solutions or services have been delivered;

•The fee is fixed or determinable; and

•Collection of the resulting receivable is probable.

Determining whether and when these criteria have been met can require significant judgment and estimates. We deem acceptance of a contract to be evidence of an arrangement. Delivery of our services occurs when the services have been performed. Delivery of our solutions occurs when the solution is shipped or transmitted, and title and risk of loss have transferred to the customers. Our typical arrangements do not include customer acceptance provisions; however, if acceptance provisions are provided, delivery is deemed to occur upon acceptance. We consider the fee to be fixed or determinable unless the fee is subject to refund or adjustment or is not payable within our standard payment terms. Payment terms greater than 90 days are considered to be beyond our customary payment terms. Collection is deemed probable if we expect that the customer will be able to pay amounts under the arrangement as they become due. If we determine that collection is not probable, we defer revenue recognition until collection. Revenue is recognized net of actual and estimated sales returns and allowances.

We follow guidance provided in ASC 605-45, Principal Agent Considerations, which states that determining whether a company should recognize revenue based on the gross amount billed to a customer or the net amount retained is a matter of judgment that depends on the facts and circumstances of the arrangement and that certain factors should be considered in the evaluation.

Subscriptions

We provide software solutions to customers which are available for use in cloud-based subscription arrangements without licensing perpetual rights to the software (“cloud-based solutions”). Revenue from cloud-based solutions is recognized ratably beginning on the activation date over the term of the agreement, which generally ranges from one to three years. Any revenue related to upfront activation or set-up fees is deferred and recognized ratably over the estimated period that the customer benefits from the related cloud-based solution. Direct and incremental costs related to upfront activation or set-up activities for cloud-based solutions are capitalized until the cloud-based solution is deployed and in use, and then expensed ratably over the estimated period that the customer benefits from the related cloud-based solution.

We provide hosting services to customers who have purchased perpetual rights to certain of our software solutions (“hosting services”). Revenue from hosting services, online training programs as well as subscription-based analytic services such as data enrichment and data management services, is recognized ratably beginning on the activation date over the term of the agreement, which generally ranges from one to three years. Any related set-up fees are recognized ratably over the estimated period that the customer benefits from the related hosting service. The estimated period of benefit is evaluated on an annual basis using historical customer retention information by solution or service.

For arrangements that have multiple elements and do not include software licenses, we allocate arrangement consideration at the inception of the arrangement to those elements that qualify as separate units of accounting. The arrangement consideration is allocated to the separate units of accounting based on relative selling price method in accordance with the selling price hierarchy, which includes: (i) vendor specific objective evidence (“VSOE”) of fair value if available; (ii) third-party evidence (“TPE”) if VSOE is not available; and (iii) best estimate of selling price (“BESP”) if neither VSOE nor TPE is available. In general, we use VSOE to allocate the selling price to subscription and service deliverables.

We offer certain payment processing services with the assistance of third-party vendors. In general, when we are the principal in a transaction based on the predominant weighting of factors identified in ASC 605-45, we record the revenue and related costs on a gross basis. Otherwise, we net the cost of revenue associated with the service against the gross amount billed to the customer and record the net amount as revenue.

Revenue from transaction processing services is recognized when the service is provided and the amounts are determinable. Revenue directly associated with processing donations for customers are included in subscriptions revenue.

Maintenance

We recognize revenue from maintenance services ratably over the term of the arrangement, generally one year at contract inception with annual renewals thereafter. Maintenance contracts are at rates that vary according to the level of the maintenance program associated with the software solution and are generally renewable annually. Maintenance contracts may also include the right to unspecified solution upgrades on an if-and-when available basis. Certain incremental support services are sold in prepaid units of time and recognized as revenue upon their usage.

Services

We generally bill consulting, installation and implementation services based on hourly rates plus reimbursable travel-related expenses. Revenue is recognized for these services over the period the services are delivered.

We recognize analytic services revenue from donor prospect research engagements, the sale of lists of potential donors, benchmarking studies and data modeling service engagements upon delivery. In arrangements where we provide customers the right to updated information during the contract period, revenue is recognized ratably over the contract period.

We sell fixed-rate programs, which permit customers to attend unlimited training over a specified contract period, typically one year, subject to certain restrictions, and revenue in those cases is recognized ratably over the contract period. Additionally, we sell training at a fixed rate for each specific class at a per attendee price or at a packaged price for several attendees, and recognize the related revenue upon the customer attending and completing training.

License fees

We sell perpetual software licenses with maintenance, varying levels of professional services and, in certain instances, with hosting services. We allocate revenue to each of the elements in these arrangements using the residual method under which we first allocate revenue to the undelivered elements, typically the non-software license components, based on VSOE of fair value of the various elements. We determine VSOE of fair value of the various elements using different methods. VSOE of fair value for maintenance services associated with software licenses is based upon renewal rates stated in the arrangements with customers, which demonstrate a consistent relationship of maintenance pricing as a percentage of the contractual license fee. VSOE of fair value of professional services and other solutions and services is based on the average selling price of these same solutions and services to other customers when sold on a stand-alone basis. Any remaining revenue is allocated to the delivered elements, which is normally the software license in the arrangement. In general, revenue is recognized for software licenses upon delivery to our customers.

When a software license is sold with software customization services, generally the services are to provide the customer assistance in creating special reports and other enhancements that will improve operational efficiency and/or help to support business process improvements. These services are generally not essential to the functionality of the software and the related revenues are recognized either as the services are delivered or upon completion. However, when software customization services are considered essential to the functionality of the software, we recognize revenue for both the software license and the services using the percentage-of-completion method.

Deferred revenue

To the extent that our customers are billed for the above described solutions and services in advance of delivery, we record such amounts in deferred revenue. Generally, our subscription and maintenance customers are billed one year in advance.

Fair value measurements

We measure certain financial assets and liabilities at fair value on a recurring basis, including derivative instruments. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. An active market is defined as a market in which transactions for the asset or liability take place with sufficient frequency and volume to provide pricing information on an ongoing basis. We use a three-tier fair value hierarchy to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows:


•	Level 1 - Quoted prices for identical assets or liabilities in active markets;


•	Level 2 - Quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets in markets that are not active, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and


•	Level 3 - Valuations derived from valuation techniques in which one or more significant inputs are unobservable.

Our financial assets and liabilities are classified in their entirety within the hierarchy based on the lowest level of input that is significant to fair value measurement. Changes to a financial asset's or liability's level within the fair value hierarchy are determined as of the end of a reporting period. All methods of assessing fair value result in a general approximation of value, and such value may never actually be realized.

Earnings per share

We compute basic earnings per share by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income available to common stockholders by the weighted average number of common shares and dilutive potential common shares outstanding during the period. Diluted earnings per share reflect the assumed exercise, settlement and vesting of all dilutive securities using the “treasury stock method” except when the effect is anti-dilutive. Potentially dilutive securities consist of shares issuable upon the exercise of stock options, settlement of stock appreciation rights and vesting of restricted stock awards and units.

Recently adopted accounting pronouncements

In September 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2015-16, Simplifying the Accounting for Measurement-Period Adjustments (ASU 2015-16). ASU 2015-16 requires for acquirers in business combinations to recognize adjustments to provisional amounts identified during measurement periods in the reporting periods in which adjusted amounts are determined. The update requires that acquirers record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization or other income effects, if any, resulting from changes in provisional amounts, calculated as if the accounting had been completed at acquisition date. The update also requires separate income statement presentation or note disclosure of amounts recorded in current period earnings by line item that would have been recorded in previous reporting periods if the provisional amount adjustments had been recognized at the acquisition date (requirements to retrospectively account for those adjustments have been eliminated). The guidance is effective for annual reporting periods beginning after December 15, 2015, including interim periods within that reporting period. Amendments in this update should be applied prospectively to adjustments to provisional amounts that occur after its effective date, with earlier application permitted for financial statements that have not been issued. We adopted ASU 2015-16 on January 1, 2016. See Note 3 to these consolidated financial statements for details of any immaterial measurement period adjustments.

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) - Customer's Accounting for Fees Paid in a Cloud Computing Arrangement (ASU 2015-05). The amendments in this update provide guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, the update specifies that the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. The update further specifies that the customer should account for a cloud computing arrangement as a service contract if the arrangement does not include a software license. An entity can elect to adopt the amendments either (1) prospectively to all arrangements entered into or materially modified after the effective date or (2) retrospectively. We adopted ASU 2015-05 on January 1, 2016 on a prospective basis and it did not have a material impact on our consolidated financial statements.

In April 2015, the FASB issued ASU 2015-03, Interest - Imputation of Interest - Simplifying the Presentation of Debt Issuance Costs (ASU 2015-03). ASU 2015-03 sets forth a requirement that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs is not affected by the amendments in this update. An entity should apply the new guidance on a retrospective basis, wherein the balance sheet of each individual period presented is adjusted to reflect the period-specific effects of applying the new guidance. We adopted ASU 2015-03 on January 1, 2016 and retrospectively restated "other assets" and "debt, net of current portion", which had the effect of reducing each of those respective line items in our December 31, 2015 consolidated balance sheet by approximately $0.5 million.

Recently issued accounting pronouncements

In March 2016, the FASB issued ASU 2016-09, Compensation — Stock Compensation (Topic 718), Improvements to Employee Share-Based Payment Accounting (ASU 2016-09). ASU 2016-09 updates the accounting for certain aspects of share-based payments to employees. Entities will be required to recognize the income tax effects of awards in the income statement when the awards vest or are settled. The guidance also updates an employers’ accounting for an employee’s use of shares to satisfy the employer’s statutory income tax withholding obligation and accounting for forfeitures. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted but all of the guidance must be adopted in the same period. We expect ASU 2016-09 will impact our consolidated balance sheets, statements of comprehensive income and cash flows, and we are currently evaluating the extent of the impact that implementation of this standard will have on adoption. We are currently considering early adopting this new guidance during 2016.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) (ASU 2016-02). ASU 2016-02 will require lessees to record most leases on their balance sheets but recognize expenses in the income statement in a manner similar to current guidance. The updated guidance also eliminates certain real estate-specific provisions and changes the guidance on sale-leaseback transactions, initial direct costs and lease executory costs for all entities. For lessors, the standard modifies the classification criteria and the accounting for sales-type and direct financing leases. All entities will classify leases to determine how to recognize lease-related revenue and expense. Classification will continue to affect amounts that lessors record on the balance sheet. ASU 2016-02 is effective for annual periods beginning after December 15, 2018, and interim periods within those years. Early adoption is permitted. Upon adoption, entities will be required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The modified retrospective approach includes a number of optional practical expedients that entities may elect to apply. We expect ASU 2016-02 will impact our consolidated financial statements and are currently evaluating the extent of the impact that implementation of this standard will have on adoption.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606) (ASU 2014-09). ASU 2014-09 outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and will replace most existing revenue recognition guidance in GAAP when it becomes effective. ASU 2014-09 was originally effective for fiscal years and interim periods within those years beginning after December 15, 2016. An entity should apply ASU 2014-09 either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying the ASU recognized as an adjustment to the opening balance of retained earnings at the date of initial application. In July, 2015, the FASB decided to delay the effective date of the new standard for one year. The new standard now requires application no later than annual reporting periods beginning after December 15, 2017, including interim reporting periods therein; however, public entities are permitted to elect to early adopt the new standard as of the original effective date. In March 2016, the FASB finalized amendments to the guidance in the new standard to clarify whether an entity is a principal or an agent in a revenue transaction. In April 2016, the FASB finalized additional amendments to the guidance in the new standard to clarify the accounting for licenses of intellectual property and identifying performance obligations. We expect the adoption of ASU 2014-09 will impact our consolidated financial statements. We are currently evaluating implementation methods and the extent of the impact that implementation of this standard and the recently issued clarifying amendments will have upon adoption.

Business Combinations

6 Months Ended

Jun. 30, 2016

Business Combinations [Abstract]

Business Combinations

3. Business Combinations

2015 Acquisitions

Smart Tuition

On October 2, 2015, we completed our acquisition of all of the outstanding equity, including all voting equity interests, of Smart, LLC (“Smart Tuition”). Smart Tuition is a leading provider of payment software and services for private schools and parents. The acquisition of Smart Tuition further expanded our offerings in the K-12 technology sector. We acquired Smart Tuition for $187.3 million in cash, net of closing adjustments including an adjustment of approximately $0.5 million during the three months ended March 31, 2016. We received the proceeds from these closing adjustments during the three months ended June 30, 2016. On October 2, 2015, we drew down a $186.0 million revolving credit loan under our 2014 Credit Facility (as defined in Note 8 below) to finance the acquisition of Smart Tuition. As a result of the acquisition, Smart Tuition has become a wholly-owned subsidiary of ours. We included the operating results of Smart Tuition as well as goodwill arising from the acquisition in our consolidated financial statements within the General Markets Business Unit ("GMBU") from the date of acquisition. For the three months ended June 30, 2016, Smart Tuition's total revenue and operating income included in our consolidated financial statements was $8.2 million and $0.6 million, respectively. For the six months ended June 30, 2016, Smart Tuition's total revenue and operating income included in our consolidated financial statements was $17.4 million and $1.8 million, respectively.

The preliminary purchase price allocation is based upon a preliminary valuation of assets and liabilities and the estimates and assumptions are subject to change as we obtain additional information during the measurement period, which may be up to one year from the acquisition date. The assets and liabilities pending finalization include the valuation of acquired intangible assets, the assumed deferred revenue and deferred taxes. Differences between the preliminary and final valuation could have a material impact on our future results of operations and financial position.

The following table summarizes the preliminary allocation of the purchase price based on the estimated fair value of the assets acquired and the liabilities assumed:



(dollars in thousands)	Purchase Price Allocation
Net working capital, excluding deferred revenue	$	276
Property and equipment	2,457
Deferred revenue	(6,500		)
Deferred tax asset	2,637
Intangible assets	97,800
Goodwill	90,302
Total purchase price⁽¹⁾	$	186,972

(1) The purchase price differs from the net cash outlay of $187.3 million due to certain insignificant acquisition-related expenses included therein.

The estimated fair value of accounts receivable acquired approximates the contractual value of $2.8 million. The estimated goodwill recognized is attributable primarily to the opportunities for expected synergies from combining operations and the assembled workforce of Smart Tuition, all of which was assigned to our GMBU reporting segment. Approximately $86.2 million of the goodwill arising in the acquisition is deductible for income tax purposes.

The Smart Tuition acquisition resulted in the identification of the following identifiable intangible assets:



	Intangible assets acquired		Weighted average amortization period
	(in thousands)		(in years)
Customer relationships	$	72,300	17
Marketing assets	1,200		3
Acquired technology	22,100		7
Non-compete agreements	2,200		5
Total intangible assets	$	97,800	14

The estimated fair values of the finite-lived intangible assets were based on variations of the income approach, which estimates fair value based on the present value of cash flows that the assets are expected to generate which included the relief-from-royalty method, incremental cash flow method including the with and without method and excess earnings method, depending on the intangible asset being valued. The method of amortization of identifiable finite-lived intangible assets is based on the expected pattern in which the estimated economic benefits of the respective assets are consumed or otherwise used up. Customer relationships and acquired technology are being amortized on an accelerated basis while marketing assets and non-compete agreements are being amortized on a straight-line basis.

The following unaudited pro forma condensed combined consolidated results of operations assume that the acquisition of Smart Tuition occurred on January 1, 2014. This unaudited pro forma financial information does not reflect any adjustments for anticipated synergies resulting from the acquisition and should not be relied upon as being indicative of the historical results that would have been attained had the transaction been consummated as of January 1, 2014, or of the results that may occur in the future. The unaudited pro forma information reflects adjustments for amortization of intangibles related to the fair value adjustments of the assets acquired, write-down of acquired deferred revenue to fair value, additional interest expense related to the financing of the transaction and the related tax effects of the adjustments.



	Three months ended June 30,		Six months ended June 30,
(dollars in thousands, except per share amounts)	2015		2015
Revenue	$	164,170	$	319,982
Net income	$	6,084	$	10,523
Basic earnings per share	$	0.13	$	0.23
Diluted earnings per share	$	0.13	$	0.23

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1490-128463

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7000-128479

Reference 10: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Earnings Per Share

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share

4. Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share:



	Three months ended June 30,				Six months ended June 30,
(dollars in thousands, except per share amounts)	2016		2015		2016		2015
Numerator:
Net income	$	7,813	$	7,042	$	12,808	$	11,327
Denominator:
Weighted average common shares	46,083,055		45,579,345		46,047,788		45,554,645
Add effect of dilutive securities:
Stock-based compensation	844,571		823,362		817,430		734,795
Weighted average common shares assuming dilution	46,927,626		46,402,707		46,865,218		46,289,440
Earnings per share:
Basic	$	0.17	$	0.15	$	0.28	$	0.25
Diluted	$	0.17	$	0.15	$	0.27	$	0.24

The following shares underlying stock-based awards were not included in diluted earnings per share because their inclusion would have been anti-dilutive:



	Three months ended June 30,		Six months ended June 30,
	2016	2015	2016	2015
Shares excluded from calculations of diluted earnings per share	—	12,705	44,134	10,152

Fair Value Measurements

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements

5. Fair Value Measurements

Recurring fair value measurements

Financial assets and liabilities measured at fair value on a recurring basis consisted of the following, as of:



	Fair value measurement using
(dollars in thousands)	Level 1		Level 2		Level 3		Total
Fair value as of June 30, 2016
Financial liabilities:
Derivative instruments⁽¹⁾	$	—	$	1,329	$	—	$	1,329
Total financial liabilities	$	—	$	1,329	$	—	$	1,329

Fair value as of December 31, 2015
Financial assets:
Derivative instruments⁽¹⁾	$	—	$	406	$	—	$	406
Total financial assets	$	—	$	406	$	—	$	406

Fair value as of December 31, 2015
Financial liabilities:
Derivative instruments⁽¹⁾	$	—	$	438	$	—	$	438
Total financial liabilities	$	—	$	438	$	—	$	438


(1)	The fair value of our interest rate swaps was based on model-driven valuations using LIBOR rates, which are observable at commonly quoted intervals. Accordingly, our interest rate swaps are classified within Level 2 of the fair value hierarchy.

We believe the carrying amounts of our cash and cash equivalents, restricted cash due to customers, accounts receivable, trade accounts payable, accrued expenses and other current liabilities and due to customers approximate their fair values at June 30, 2016 and December 31, 2015, due to the immediate or short-term maturity of these instruments.

We believe the carrying amount of our debt approximates its fair value at June 30, 2016 and December 31, 2015, as the debt bears interest rates that approximate market value. As LIBOR rates are observable at commonly quoted intervals, our debt is classified within Level 2 of the fair value hierarchy.

Non-recurring fair value measurements

Assets and liabilities that are measured at fair value on a non-recurring basis include intangible assets and goodwill which are recognized at fair value during the period in which an acquisition is completed, from updated estimates and assumptions during the measurement period, or when they are considered to be impaired. These non-recurring fair value measurements, primarily for intangible assets acquired, were based on Level 3 unobservable inputs. In the event of an impairment, we determine the fair value of the goodwill and intangible assets using a discounted cash flow approach, which contains significant unobservable inputs and therefore is considered a Level 3 fair value measurement. The unobservable inputs in the analysis generally include future cash flow projections and a discount rate.

There were no non-recurring fair value adjustments to intangible assets and goodwill during the six months ended June 30, 2016, except for certain insignificant business combination accounting adjustments to the initial fair value estimates of the Smart Tuition assets acquired and liabilities assumed at the acquisition date from updated information obtained during the measurement period. See Note 3 to these consolidated financial statements for additional details. The measurement period may be up to one year from the acquisition date. We record any measurement period adjustments to the fair value of assets acquired and liabilities assumed, with the corresponding offset to goodwill.

Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

6. Goodwill and Other Intangible Assets

The change in goodwill for each reportable segment (as defined in Note 14 below) during the six months ended June 30, 2016, consisted of the following:



(dollars in thousands)	ECBU		GMBU			IBU			Total
Balance at December 31, 2015	$	240,494	$	190,976		$	4,979		$	436,449
Adjustments related to prior year business combinations⁽¹⁾	—		(256		)	—			(256		)
Effect of foreign currency translation	—		—			(181		)	(181		)
Balance at June 30, 2016	$	240,494	$	190,720		$	4,798		$	436,012


(1)	See Note 3 to these consolidated financial statements for details of certain of the immaterial measurement period adjustments.

Amortization expense

Amortization expense related to finite-lived intangible assets acquired in business combinations is allocated to cost of revenue on the consolidated statements of comprehensive income based on the revenue stream to which the asset contributes, except for marketing assets and non-compete agreements, for which the associated amortization expense is included in operating expenses.

The following table summarizes amortization expense:



	Three months ended June 30,				Six months ended June 30,
(dollars in thousands)	2016		2015		2016		2015
Included in cost of revenue:
Cost of subscriptions	$	7,853	$	5,767	$	15,664	$	11,539
Cost of maintenance	1,332		1,006		2,664		2,159
Cost of services	657		702		1,310		1,309
Cost of license fees and other	85		92		170		199
Total included in cost of revenue	9,927		7,567		19,808		15,206
Included in operating expenses	708		524		1,460		1,012
Total amortization of intangibles from business combinations	$	10,635	$	8,091	$	21,268	$	16,218

The following table outlines the estimated future amortization expense for each of the next five years for our finite-lived intangible assets as of June 30, 2016:



(dollars in thousands) Years ending December 31,	Amortization expense
2016 - remaining	$	20,991
2017	41,426
2018	39,788
2019	36,479
2020	27,701
Total	$	166,385

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Consolidated Financial Statement Details

6 Months Ended

Jun. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Additional Financial Information Disclosure

7. Consolidated Financial Statement Details

Prepaid expenses and other assets



(dollars in thousands)	June 30, 2016		December 31, 2015
Deferred sales commissions	$	34,027	$	30,141
Prepaid software maintenance	20,670		15,308
Deferred professional services costs	2,586		3,603
Taxes, prepaid and receivable	6,398		9,121
Deferred tax asset	3,385		2,869
Prepaid royalties	1,442		1,767
Other assets	7,136		6,758
Total prepaid expenses and other assets	75,644		69,567
Less: Long-term portion	21,847		20,901
Prepaid expenses and other current assets	$	53,797	$	48,666

Accrued expenses and other liabilities



(dollars in thousands)	June 30, 2016		December 31, 2015
Accrued bonuses	$	11,979	$	24,591
Accrued commissions and salaries	8,371		8,391
Taxes payable	4,523		3,923
Deferred rent liabilities	4,108		4,070
Lease incentive obligations	4,306		4,734
Unrecognized tax benefit	3,299		3,147
Customer credit balances	4,305		3,515
Accrued vacation costs	2,256		2,446
Accrued health care costs	2,564		2,356
Other liabilities	7,130		7,911
Total accrued expenses and other liabilities	52,841		65,084
Less: Long-term portion	8,102		7,623
Accrued expenses and other current liabilities	$	44,739	$	57,461

Deferred revenue



(dollars in thousands)	June 30, 2016		December 31, 2015
Subscriptions	$	139,177	$	122,524
Maintenance	86,084		85,901
Services	29,725		28,517
License fees and other	1,675		393
Total deferred revenue	256,661		237,335
Less: Long-term portion	6,212		7,119
Deferred revenue, current portion	$	250,449	$	230,216

Other expense, net



	Three months ended June 30,						Six months ended June 30,
(dollars in thousands)	2016			2015			2016			2015
Interest income	$	118		$	7		$	239		$	15
Loss on sale of business	—			(1,976		)	—			(1,976		)
Other (expense) income, net	(183		)	695			(409		)	400
Other expense, net	$	(65	)	$	(1,274	)	$	(170	)	$	(1,561	)

Debt

6 Months Ended

Jun. 30, 2016

Debt Disclosure [Abstract]

Debt

8. Debt

The following table summarizes our debt balances and the related weighted average effective interest rates, which includes the effect of interest rate swap agreements.



	Debt balance at				Weighted average effective interest rate at
(dollars in thousands)	June 30, 2016		December 31, 2015		June 30, 2016		December 31, 2015
Credit facility:
Revolving credit loans	$	239,900	$	242,900	2.19	%	2.15	%
Term loans	165,156		167,344		2.53	%	2.51	%
Total debt	405,056		410,244		2.33	%	2.30	%
Less: Unamortized debt discount	1,816		2,157
Less: Debt, current portion	4,375		4,375		2.14	%	2.11	%
Debt, net of current portion	$	398,865	$	403,712	2.33	%	2.30	%

Summary of the 2014 Credit Facility

In February 2014, we entered into a five-year $325.0 million credit facility (the “2014 Credit Facility”) and drew $175.0 million on a term loan upon closing, which was used to repay all amounts outstanding under the 2012 Credit Facility.

The 2014 Credit Facility includes the following facilities: (i) a dollar and a designated currency revolving credit facility with sublimits for letters of credit and swingline loans (the “2014 Revolving Facility”) and (ii) a term loan facility (the “2014 Term Loan”).

In connection with our entry into the 2014 Credit Facility, we paid $2.5 million in financing costs, of which $1.1 million were capitalized and, together with a portion of the unamortized deferred financing costs from prior facilities, are being amortized into interest expense over the term of the new facility using the effective interest method. As of June 30, 2016 and December 31, 2015, deferred financing costs totaling $0.7 million and $0.9 million, respectively, were included in other assets on the consolidated balance sheet.

The 2014 Credit Facility is secured by the stock and limited liability company interests of certain of our subsidiaries and is guaranteed by our material domestic subsidiaries.

Amounts borrowed under the dollar tranche revolving credit loans and term loan under the 2014 Credit Facility bear interest at a rate per annum equal to, at our option, (a) a base rate equal to the highest of (i) the prime rate, (ii) federal funds rate plus 0.50% and (iii) one month LIBOR plus 1.00% (the “Base Rate”), in addition to a margin of 0.00% to 0.50%, or (b) LIBOR rate plus a margin of 1.00% to 1.50%.

We also pay a quarterly commitment fee on the unused portion of the 2014 Revolving Facility from 0.15% to 0.225% per annum, depending on our net leverage ratio. At June 30, 2016, the commitment fee was 0.225%.

The 2014 Term Loan requires periodic principal payments. The balance of the 2014 Term Loan and any amounts drawn on the 2014 Revolving Facility are due upon maturity of the 2014 Credit Facility in February 2019. We evaluate the classification of our debt as current or non-current based on the required annual maturities of the 2014 Credit Facility.

The 2014 Credit Facility includes financial covenants related to the net leverage ratio and interest coverage ratio, as well as restrictions on our ability to declare and pay dividends and our ability to repurchase shares of our common stock. At June 30, 2016, we were in compliance with our debt covenants under the 2014 Credit Facility.

Financing for MicroEdge acquisition

The 2014 Credit Facility includes an option to request increases in the revolving commitments and/or request additional term loans in an aggregate principal amount of up to $200.0 million. On October 1, 2014, we exercised this option, and certain lenders agreed, to increase the revolving credit commitments by $100.0 million (the "October 2014 Additional Revolving Credit Commitments") such that for the period commencing October 1, 2014, the aggregate revolving credit commitments available were $250.0 million. The October 2014 Additional Revolving Credit Commitments have the same terms as the existing revolving credit commitments.

On October 1, 2014, we drew down a $140.0 million revolving credit loan under the 2014 Credit Facility to finance the acquisition of MicroEdge.

Financing for Smart Tuition acquisition

On July 17, 2015, we again exercised this option and certain lenders agreed to increase the revolving credit commitments by an additional $100.0 million (the "July 2015 Additional Revolving Credit Commitments") such that commencing July 17, 2015, the aggregate revolving credit commitments available were $350.0 million. The July 2015 Additional Revolving Credit Commitments have the same terms as the existing revolving credit commitments.

On October 2, 2015, we drew down a $186.0 million revolving credit loan under the 2014 Credit Facility to finance the acquisition of Smart Tuition.

As of June 30, 2016, the required annual maturities related to the 2014 Credit Facility were as follows:



Years ending December 31, (dollars in thousands)	Annual maturities
2016 - remaining	$	2,187
2017	4,375
2018	4,375
2019	394,119
2020	—
Thereafter	—
Total required maturities	$	405,056

Derivative Instruments

6 Months Ended

Jun. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives Instruments

9. Derivative Instruments

We use derivative instruments to manage our variable interest rate risk. In March 2014, we entered into an interest rate swap agreement (the "March 2014 Swap Agreement"), which effectively converts portions of our variable rate debt under the 2014 Credit Facility to a fixed rate for the term of the swap agreement. The initial notional value of the March 2014 Swap Agreement was $125.0 million with an effective date beginning in March 2014. In March 2017, the notional value of the March 2014 Swap Agreement will decrease to $75.0 million for the remaining term through February 2018. We designated the March 2014 Swap Agreement as a cash flow hedge at the inception of the contract.

In October 2014, we entered into an additional interest rate swap agreement (the “October 2014 Swap Agreement”), which effectively converted portions of our variable rate debt under the 2014 Credit Facility to a fixed rate for the term of the swap agreement. The initial notional value of the October 2014 Swap Agreement was $75.0 million with an effective date beginning in October 2014. In September 2015, the notional value of the October 2014 Swap Agreement decreased to $50.0 million for the remaining term through June 2016. We designated the October 2014 Swap Agreement as a cash flow hedge at the inception of the contract.

In October 2015, we entered into an additional interest rate swap agreement (the "October 2015 Swap Agreement"), which effectively converts portions of our variable rate debt under the 2014 Credit Facility to a fixed rate for the term of the October 2015 Swap Agreement. The notional value of the October 2015 Swap Agreement was $75.0 million with an effective date beginning in October 2015 and maturing in February 2018. We designated the October 2015 Swap Agreement as a cash flow hedge at the inception of the contract.

The fair values of our derivative instruments were as follows as of:



(dollars in thousands)	Balance sheet location	June 30, 2016			December 31, 2015
Derivative instruments designated as hedging instruments:
Interest rate swap, long-term portion	Other assets	$	—		$	406
Total derivative instruments designated as hedging instruments		$	—		$	406
		June 30, 2016			December 31, 2015
Derivative instruments designated as hedging instruments:
Interest rate swaps, current portion	Accrued expenses and other current liabilities	$	—		$	2
Interest rate swaps, long-term portion	Other liabilities	(1,329		)	436
Total derivative instruments designated as hedging instruments		$	(1,329	)	$	438

The effects of derivative instruments in cash flow hedging relationships were as follows:



	Gain (loss) recognized in accumulated other comprehensive loss as of			Location of gain (loss) reclassified from accumulated other comprehensive loss into income	Gain (loss) reclassified from accumulated other comprehensive loss into income
(dollars in thousands)	June 30, 2016				Three months ended June 30, 2016			Six months ended June 30, 2016
Interest rate swaps	$	(1,329	)	Interest expense	$	(302	)	$	(610	)

	June 30, 2015				Three months ended June 30, 2015			Six months ended June 30, 2015
Interest rate swaps	$	(873	)	Interest expense	$	(374	)	$	(749	)

Our policy requires that derivatives used for hedging purposes be designated and effective as a hedge of the identified risk exposure at the inception of the contract. Accumulated other comprehensive income (loss) includes unrealized gains or losses from the change in fair value measurement of our derivative instruments each reporting period and the related income tax expense or benefit. Changes in the fair value measurements of the derivative instruments and the related income tax expense or benefit are reflected as adjustments to accumulated other comprehensive income (loss) until the actual hedged expense is incurred or until the hedge is terminated at which point the unrealized gain (loss) is reclassified from accumulated other comprehensive income (loss) to current earnings. The estimated accumulated other comprehensive loss as of June 30, 2016 that is expected to be reclassified into earnings within the next twelve months is $1.0 million. There were no ineffective portions of our interest rate swap derivatives during the six months ended June 30, 2016 and 2015. See Note 13 to these consolidated financial statements for a summary of the changes in accumulated other comprehensive income (loss) by component.

Commitments and Contingencies

6 Months Ended

Jun. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

10. Commitments and Contingencies

Historical Leases

We lease our headquarters facility under a 15-year lease agreement which was entered into in October 2008, and has two five-year renewal options. The current annual base rent of the lease is $5.1 million, payable in equal monthly installments. The base rent escalates annually at a rate equal to the change in the consumer price index, as defined in the agreement, but not to exceed 5.5% in any year.

We have a lease for office space in Austin, Texas which terminates on September 30, 2023, and has two five-year renewal options. Under the terms of the lease, we will increase our leased space by approximately 20,000 square feet on July 31, 2016. The current annual base rent of the lease is $2.3 million. The base rent escalates annually between 2% and 4% based on the terms of the agreement. The rent expense is recorded on a straight-line basis over the length of the lease term. At June 30, 2016, we had a standby letter of credit of $2.0 million for a security deposit for this lease.

We have provisions in our leases that entitle us to aggregate remaining leasehold improvement allowances of $3.6 million. These amounts are being recorded as a reduction to rent expense ratably over the terms of the leases. The reductions in rent expense related to these lease provisions during the three and six months ended June 30, 2016 and 2015, were insignificant. The leasehold improvement allowances have been included in the table of operating lease commitments below as a reduction in our lease commitments ratably over the then remaining terms of the leases. The timing of the reimbursements for the actual leasehold improvements may vary from the amounts reflected in the table below.

We have also received, and expect to receive through 2016, quarterly South Carolina state incentive payments as a result of locating our headquarters facility in Berkeley County, South Carolina. These amounts are recorded as a reduction of rent expense upon receipt and were $0.7 million and $0.6 million for the three months ended June 30, 2016 and 2015, respectively, and $1.6 million and $1.2 million for the six months ended June 30, 2016 and 2015, respectively.

Total rent expense was $3.5 million and $2.4 million for the three months ended June 30, 2016 and 2015, respectively, and $5.5 million and $4.9 million for the six months ended June 30, 2016 and 2015, respectively.

Lease for New Headquarters Facility

In May 2016, we entered into a lease agreement for a new headquarters facility to be built in Charleston, South Carolina ("the New Headquarters Facility"). The landlord is responsible for the design, development and construction of the New Headquarters Facility. Construction of the New Headquarters Facility will proceed in two phases. Phase One will include a building with approximately 172,000 rentable square feet, which is expected to be completed in the first quarter of 2018. The lease agreement also grants us a Phase Two option to request that the landlord construct and lease to us a second office building and related improvements. Total rent payments and leasehold improvement allowances for Phase One are estimated to be approximately $102.0 million and $12.9 million, respectively, over the life of the lease agreement, plus additional amounts for Phase Two, if applicable. The lease agreement is for a period of twenty years beginning on the date of substantial completion of construction by the landlord, which is estimated to be in the first quarter of 2018, and ending in the first quarter of 2038. The lease agreement provides for four renewal periods of five years each at a base rent equal to the then prevailing market rate for comparable buildings. We expect to receive quarterly South Carolina state incentive payments as a result of locating our headquarters facility in Berkeley County, South Carolina.

As of June 30, 2016, the future minimum lease commitments related to lease agreements, net of related lease incentives, were as follows:



Years ending December 31, (dollars in thousands)	Operating leases⁽¹⁾
2016 – remaining	$	6,872
2017	12,085
2018	11,369
2019	11,792
2020	11,073
Thereafter	97,994
Total minimum lease payments	$	151,185


(1)	Our future minimum lease commitments related to operating leases do not include payments related to Phase Two of our New Headquarters Facility, as that option had not been exercised as of June 30, 2016.

Other commitments

As discussed in Note 8 to these consolidated financial statements, the term loans under the 2014 Credit Facility require periodic principal payments. The balance of the term loans and any amounts drawn on the revolving credit loans are due upon maturity of the 2014 Credit Facility in February 2019.

We utilize third-party technology in conjunction with our solutions and services, with contractual obligations varying in length from one to four years. In certain cases, such arrangements require a minimum annual purchase commitment. As of June 30, 2016, the remaining aggregate minimum purchase commitment under these arrangements was approximately $41.9 million through 2020.

Product and service indemnifications

In the ordinary course of business, we provide certain indemnifications of varying scope to customers against claims of intellectual property infringement made by third parties arising from the use of our solutions or services. If we determine that it is probable that a loss has been incurred related to solution or service indemnifications, any such loss that could be reasonably estimated would be recognized. We have not identified any losses and, accordingly, we have not recorded a liability related to these indemnifications.

Legal contingencies

We are subject to legal proceedings and claims that arise in the ordinary course of business. We record an accrual for a contingency when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. As of June 30, 2016, in our opinion, there was not at least a reasonable possibility that these actions arising in the ordinary course of business will have a material adverse effect upon our consolidated financial position, results of operations or cash flows and, therefore, no material loss contingencies were recorded.

Income Taxes

6 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

Income Taxes

11. Income Taxes

Our income tax provision and effective income tax rates including the effects of period-specific events, were:



	Three months ended June 30,						Six months ended June 30,
(dollars in thousands)	2016			2015			2016			2015
Income tax provision	$	3,598		$	4,272		$	6,262		$	6,026
Effective income tax rate	31.5		%	37.8		%	32.8		%	34.7		%

The decreases in our effective income tax rates during the three and six months ended June 30, 2016, when compared to the same periods in 2015, were primarily due to a loss included in the 2015 periods from the sale of our Netherlands entity for which we did not record a tax benefit and the estimated benefit to our annual 2016 effective tax rate from federal and state research tax credits that were permanently enacted into law in December 2015. The decreases in our effective tax rates during the three and six months ended June 30, 2016 were partially offset by the estimated impact to our annual 2016 effective tax rate from Section 162(m) nondeductible compensation.

In addition to the events that impact our effective income tax rate during both the three and six months ended June 30, 2016, when compared to the same periods in 2015, the decrease in our effective tax rate during the six months ended June 30, 2016 was also partially offset by a discrete tax benefit included in the 2015 period from the settlement of an IRS audit.

Our effective income tax rate may fluctuate quarterly as a result of factors, including transactions entered into, changes in the geographic distribution of our earnings or losses, our assessment of certain tax contingencies, valuation allowances, and changes in tax law in jurisdictions where we conduct business.

We have deferred tax assets for federal, state, and international net operating loss carryforwards and state tax credits. The federal and state net operating loss carryforwards are subject to various Internal Revenue Code limitations and applicable state tax laws. A portion of the foreign and state net operating loss carryforwards and a portion of state tax credits have a valuation reserve due to the uncertainty of realizing such carryforwards and credits in the future.

The total amount of unrecognized tax benefit that, if recognized, would favorably affect the effective income tax rate, was $2.4 million and $2.3 million at June 30, 2016 and December 31, 2015, respectively. We recognize accrued interest and penalties, if any, related to unrecognized tax benefits as a component of income tax expense.

Stock-Based Compensation

6 Months Ended

Jun. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

12. Stock-based Compensation

Stock-based compensation expense is allocated to cost of revenue and operating expenses on the consolidated statements of comprehensive income based on where the associated employee’s compensation is recorded. The following table summarizes stock-based compensation expense:



	Three months ended June 30,				Six months ended June 30,
(dollars in thousands)	2016		2015		2016		2015
Included in cost of revenue:
Cost of subscriptions	$	290	$	325	$	571	$	468
Cost of maintenance	123		85		246		246
Cost of services	360		639		828		1,236
Total included in cost of revenue	773		1,049		1,645		1,950
Included in operating expenses:
Sales, marketing and customer success	921		804		1,822		1,506
Research and development	1,559		1,186		3,094		2,164
General and administrative	4,618		3,272		9,226		5,793
Total included in operating expenses	7,098		5,262		14,142		9,463
Total stock-based compensation expense	$	7,871	$	6,311	$	15,787	$	11,413

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Stockholders' Equity

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Stockholders' Equity

13. Stockholders' Equity

Dividends

Our Board of Directors has adopted a dividend policy, which provides for the distribution to stockholders of a portion of cash generated by us that is in excess of operational needs and capital expenditures. The 2014 Credit Facility limits the amount of dividends payable and certain state laws restrict the amount of dividends distributed.

In February 2016, our Board of Directors approved an annual dividend rate of $0.48 per share to be made in quarterly payments. Dividend payments are not guaranteed and our Board of Directors may decide, in its absolute discretion, at any time and for any reason, not to declare and pay further dividends. The following table provides information with respect to quarterly dividends of $0.12 per share paid on common stock during the six months ended June 30, 2016.



Declaration Date	Dividend per Share		Record Date	Payable Date
February 9, 2016	$	0.12	February 26	March 15
April 27, 2016	$	0.12	May 27	June 15

On August 1, 2016, our Board of Directors declared a third quarter dividend of $0.12 per share payable on September 15, 2016 to stockholders of record on August 26, 2016.

Changes in accumulated other comprehensive loss by component

The changes in accumulated other comprehensive loss by component, consisted of the following:



	Three months ended June 30,						Six months ended June 30,
(dollars in thousands)	2016			2015			2016			2015
Accumulated other comprehensive loss, beginning of period	$	(1,091	)	$	(1,827	)	$	(825	)	$	(1,032	)
By component:
Gains and losses on cash flow hedges:
Accumulated other comprehensive loss balance, beginning of period	$	(688	)	$	(633	)	$	(19	)	$	(164	)
Other comprehensive loss before reclassifications, net of tax effects of $195, $83, $750 and $522	(301		)	(133		)	(1,157		)	(831		)
Amounts reclassified from accumulated other comprehensive loss to interest expense	302			374			610			749
Tax benefit included in provision for income taxes	(119		)	(144		)	(240		)	(290		)
Total amounts reclassified from accumulated other comprehensive loss	183			230			370			459
Net current-period other comprehensive (loss) income	(118		)	97			(787		)	(372		)
Accumulated other comprehensive loss balance, end of period	$	(806	)	$	(536	)	$	(806	)	$	(536	)
Foreign currency translation adjustment:
Accumulated other comprehensive loss balance, beginning of period	$	(403	)	$	(1,194	)	$	(806	)	$	(868	)
Translation adjustments	(431		)	(196		)	(28		)	(522		)
Accumulated other comprehensive loss balance, end of period	(834		)	(1,390		)	(834		)	(1,390		)
Accumulated other comprehensive loss, end of period	$	(1,640	)	$	(1,926	)	$	(1,640	)	$	(1,926	)

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

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+ Details

Segment Information

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Segment Information

14. Segment Information

As of June 30, 2016, our reportable segments were the General Markets Business Unit ("GMBU"), the Enterprise Customer Business Unit ("ECBU"), and the International Business Unit ("IBU"). Following is a description of each reportable segment:


•	The GMBU is focused on marketing, sales, delivery and support to all emerging and mid-sized prospects and customers in North America;


•	The ECBU is focused on marketing, sales, delivery and support to all large and/or strategic prospects and customers in North America; and


•	The IBU is focused on marketing, sales, delivery and support to all prospects and customers outside of North America.

Our CODM is our chief executive officer ("CEO"). The CEO reviews financial information presented on an operating segment basis for the purposes of making certain operating decisions and assessing financial performance. The CEO uses internal financial reports that provide segment revenues and operating income, excluding stock-based compensation expense, amortization expense, depreciation expense, research and development expense and certain corporate sales, marketing, general and administrative expenses. Currently, the CEO believes that the exclusion of these costs allows for a better understanding of the operating performance of the operating units and management of other operating expenses and cash needs. The CEO does not review any segment balance sheet information.

Summarized reportable segment financial results, were as follows:



	Three months ended June 30,						Six months ended June 30,
(dollars in thousands)	2016			2015			2016			2015
Revenue by segment:
GMBU	93,970			76,138			$	181,922		$	146,067
ECBU	75,037			69,385			146,536			136,299
IBU	11,138			10,687			20,896			20,814
Other⁽¹⁾	46			49			93			72
Total revenue	$	180,191		$	156,259		$	349,447		$	303,252
Segment operating income⁽²⁾:
GMBU	45,262			39,338			$	87,873		$	74,001
ECBU	38,721			33,750			74,487			65,954
IBU	1,065			2,091			2,061			3,392
Other⁽¹⁾	18			255			48			(57		)
	85,066			75,434			164,469			143,290
Less:
Corporate unallocated costs⁽³⁾	(52,363		)	(46,571		)	(102,778		)	(93,186		)
Stock-based compensation costs	(7,871		)	(6,311		)	(15,787		)	(11,413		)
Amortization expense	(10,635		)	(8,091		)	(21,268		)	(16,218		)
Interest expense	(2,721		)	(1,873		)	(5,396		)	(3,559		)
Other expense, net	(65		)	(1,274		)	(170		)	(1,561		)
Income before provision for income taxes	$	11,411		$	11,314		$	19,070		$	17,353


(1)	Other includes revenue and the related costs from the sale of solutions and services not directly attributable to a reportable segment.


(2)	Segment operating income includes direct, controllable costs related to the sale of solutions and services by the reportable segment.


(3)	Corporate unallocated costs include research and development, depreciation expense, and certain corporate sales, marketing, general and administrative expenses.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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+ Details

Subsequent Events

6 Months Ended

Jun. 30, 2016

Subsequent Events [Abstract]

Subsequent Events

15. Subsequent Events

On July 12, 2016, we acquired all of the outstanding equity, including all voting equity interests of Good+Geek, Inc., a Delaware corporation doing business as "Attentive.ly." Attentive.ly provides social media capabilities allowing organizations to conduct social listening, identify key influencers and drive engagement through its cloud solution. The acquisition accelerates our ability to deliver these capabilities to our customers. The results of operations of the acquired company will be included in our consolidated financial statements from the date of acquisition. Due to the timing of the transaction, the initial accounting for this acquisition, including the measurement of assets acquired, liabilities assumed and goodwill, is not complete and is pending detailed analyses of the facts and circumstances that existed as of the July 12, 2016 acquisition date. We do not expect this business combination to have a material effect on our consolidated financial position, results of operations or cash flows.

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2016

Accounting Policies [Abstract]

Unaudited interim consolidated financial statements

Basis of consolidation

Use of estimates

Revenue recognition

We recognize revenue when all of the following conditions are met:

•Persuasive evidence of an arrangement exists;

•The solutions or services have been delivered;

•The fee is fixed or determinable; and

•Collection of the resulting receivable is probable.

Subscriptions

Maintenance

Services

License fees

Deferred revenue

Fair value measurements


•	Level 1 - Quoted prices for identical assets or liabilities in active markets;


•	Level 2 - Quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets in markets that are not active, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and


•	Level 3 - Valuations derived from valuation techniques in which one or more significant inputs are unobservable.

Earnings per share

Recently adopted accounting pronouncements

Recently issued accounting pronouncements

Legal contingencies

Business Combinations (Tables) - Smart Tuition [Member]

6 Months Ended

Jun. 30, 2016

Business Acquisition [Line Items]

Purchase Price Allocation

The following table summarizes the preliminary allocation of the purchase price based on the estimated fair value of the assets acquired and the liabilities assumed:



(dollars in thousands)	Purchase Price Allocation
Net working capital, excluding deferred revenue	$	276
Property and equipment	2,457
Deferred revenue	(6,500		)
Deferred tax asset	2,637
Intangible assets	97,800
Goodwill	90,302
Total purchase price⁽¹⁾	$	186,972

(1) The purchase price differs from the net cash outlay of $187.3 million due to certain insignificant acquisition-related expenses included therein.

Acquired Intangible Assets

The Smart Tuition acquisition resulted in the identification of the following identifiable intangible assets:



	Intangible assets acquired		Weighted average amortization period
	(in thousands)		(in years)
Customer relationships	$	72,300	17
Marketing assets	1,200		3
Acquired technology	22,100		7
Non-compete agreements	2,200		5
Total intangible assets	$	97,800	14

Pro Forma Financial Information



	Three months ended June 30,		Six months ended June 30,
(dollars in thousands, except per share amounts)	2015		2015
Revenue	$	164,170	$	319,982
Net income	$	6,084	$	10,523
Basic earnings per share	$	0.13	$	0.23
Diluted earnings per share	$	0.13	$	0.23

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share:



	Three months ended June 30,				Six months ended June 30,
(dollars in thousands, except per share amounts)	2016		2015		2016		2015
Numerator:
Net income	$	7,813	$	7,042	$	12,808	$	11,327
Denominator:
Weighted average common shares	46,083,055		45,579,345		46,047,788		45,554,645
Add effect of dilutive securities:
Stock-based compensation	844,571		823,362		817,430		734,795
Weighted average common shares assuming dilution	46,927,626		46,402,707		46,865,218		46,289,440
Earnings per share:
Basic	$	0.17	$	0.15	$	0.28	$	0.25
Diluted	$	0.17	$	0.15	$	0.27	$	0.24

Anti-Dilutive Securities

The following shares underlying stock-based awards were not included in diluted earnings per share because their inclusion would have been anti-dilutive:



	Three months ended June 30,		Six months ended June 30,
	2016	2015	2016	2015
Shares excluded from calculations of diluted earnings per share	—	12,705	44,134	10,152

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Financial assets and liabilities measured at fair value on a recurring basis consisted of the following, as of:



	Fair value measurement using
(dollars in thousands)	Level 1		Level 2		Level 3		Total
Fair value as of June 30, 2016
Financial liabilities:
Derivative instruments⁽¹⁾	$	—	$	1,329	$	—	$	1,329
Total financial liabilities	$	—	$	1,329	$	—	$	1,329

Fair value as of December 31, 2015
Financial assets:
Derivative instruments⁽¹⁾	$	—	$	406	$	—	$	406
Total financial assets	$	—	$	406	$	—	$	406

Fair value as of December 31, 2015
Financial liabilities:
Derivative instruments⁽¹⁾	$	—	$	438	$	—	$	438
Total financial liabilities	$	—	$	438	$	—	$	438


(1)	The fair value of our interest rate swaps was based on model-driven valuations using LIBOR rates, which are observable at commonly quoted intervals. Accordingly, our interest rate swaps are classified within Level 2 of the fair value hierarchy.

Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Change in Goodwill by Reportable Segment

The change in goodwill for each reportable segment (as defined in Note 14 below) during the six months ended June 30, 2016, consisted of the following:



(dollars in thousands)	ECBU		GMBU			IBU			Total
Balance at December 31, 2015	$	240,494	$	190,976		$	4,979		$	436,449
Adjustments related to prior year business combinations⁽¹⁾	—		(256		)	—			(256		)
Effect of foreign currency translation	—		—			(181		)	(181		)
Balance at June 30, 2016	$	240,494	$	190,720		$	4,798		$	436,012


(1)	See Note 3 to these consolidated financial statements for details of certain of the immaterial measurement period adjustments.

Summary of Amortization Expense

The following table summarizes amortization expense:



	Three months ended June 30,				Six months ended June 30,
(dollars in thousands)	2016		2015		2016		2015
Included in cost of revenue:
Cost of subscriptions	$	7,853	$	5,767	$	15,664	$	11,539
Cost of maintenance	1,332		1,006		2,664		2,159
Cost of services	657		702		1,310		1,309
Cost of license fees and other	85		92		170		199
Total included in cost of revenue	9,927		7,567		19,808		15,206
Included in operating expenses	708		524		1,460		1,012
Total amortization of intangibles from business combinations	$	10,635	$	8,091	$	21,268	$	16,218

Future Amortization Expense for Finite-Lived Intangible Assets

The following table outlines the estimated future amortization expense for each of the next five years for our finite-lived intangible assets as of June 30, 2016:



(dollars in thousands) Years ending December 31,	Amortization expense
2016 - remaining	$	20,991
2017	41,426
2018	39,788
2019	36,479
2020	27,701
Total	$	166,385

Consolidated Financial Statement Details (Tables)

6 Months Ended

Jun. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Components of Prepaid Expenses and Other Assets



(dollars in thousands)	June 30, 2016		December 31, 2015
Deferred sales commissions	$	34,027	$	30,141
Prepaid software maintenance	20,670		15,308
Deferred professional services costs	2,586		3,603
Taxes, prepaid and receivable	6,398		9,121
Deferred tax asset	3,385		2,869
Prepaid royalties	1,442		1,767
Other assets	7,136		6,758
Total prepaid expenses and other assets	75,644		69,567
Less: Long-term portion	21,847		20,901
Prepaid expenses and other current assets	$	53,797	$	48,666

Components of Accrued Expenses and Other Liabilities



(dollars in thousands)	June 30, 2016		December 31, 2015
Accrued bonuses	$	11,979	$	24,591
Accrued commissions and salaries	8,371		8,391
Taxes payable	4,523		3,923
Deferred rent liabilities	4,108		4,070
Lease incentive obligations	4,306		4,734
Unrecognized tax benefit	3,299		3,147
Customer credit balances	4,305		3,515
Accrued vacation costs	2,256		2,446
Accrued health care costs	2,564		2,356
Other liabilities	7,130		7,911
Total accrued expenses and other liabilities	52,841		65,084
Less: Long-term portion	8,102		7,623
Accrued expenses and other current liabilities	$	44,739	$	57,461

Components of Deferred Revenue



(dollars in thousands)	June 30, 2016		December 31, 2015
Subscriptions	$	139,177	$	122,524
Maintenance	86,084		85,901
Services	29,725		28,517
License fees and other	1,675		393
Total deferred revenue	256,661		237,335
Less: Long-term portion	6,212		7,119
Deferred revenue, current portion	$	250,449	$	230,216

Components of Other Expense, Net



	Three months ended June 30,						Six months ended June 30,
(dollars in thousands)	2016			2015			2016			2015
Interest income	$	118		$	7		$	239		$	15
Loss on sale of business	—			(1,976		)	—			(1,976		)
Other (expense) income, net	(183		)	695			(409		)	400
Other expense, net	$	(65	)	$	(1,274	)	$	(170	)	$	(1,561	)

- Definition

The entire disclosure for deferred revenues at the end of the reporting period, and description and amounts of significant changes that occurred during the reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References + Details

Debt (Tables)

6 Months Ended

Jun. 30, 2016

Debt Disclosure [Abstract]

Summary of Debt

The following table summarizes our debt balances and the related weighted average effective interest rates, which includes the effect of interest rate swap agreements.



	Debt balance at				Weighted average effective interest rate at
(dollars in thousands)	June 30, 2016		December 31, 2015		June 30, 2016		December 31, 2015
Credit facility:
Revolving credit loans	$	239,900	$	242,900	2.19	%	2.15	%
Term loans	165,156		167,344		2.53	%	2.51	%
Total debt	405,056		410,244		2.33	%	2.30	%
Less: Unamortized debt discount	1,816		2,157
Less: Debt, current portion	4,375		4,375		2.14	%	2.11	%
Debt, net of current portion	$	398,865	$	403,712	2.33	%	2.30	%

Annual Maturities Related to Credit Facility

As of June 30, 2016, the required annual maturities related to the 2014 Credit Facility were as follows:



Years ending December 31, (dollars in thousands)	Annual maturities
2016 - remaining	$	2,187
2017	4,375
2018	4,375
2019	394,119
2020	—
Thereafter	—
Total required maturities	$	405,056

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

+ Details

Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Values of Derivative Instruments

The fair values of our derivative instruments were as follows as of:



(dollars in thousands)	Balance sheet location	June 30, 2016			December 31, 2015
Derivative instruments designated as hedging instruments:
Interest rate swap, long-term portion	Other assets	$	—		$	406
Total derivative instruments designated as hedging instruments		$	—		$	406
		June 30, 2016			December 31, 2015
Derivative instruments designated as hedging instruments:
Interest rate swaps, current portion	Accrued expenses and other current liabilities	$	—		$	2
Interest rate swaps, long-term portion	Other liabilities	(1,329		)	436
Total derivative instruments designated as hedging instruments		$	(1,329	)	$	438

Effects of Derivative Instruments in Cash Flow Hedging Relationships

The effects of derivative instruments in cash flow hedging relationships were as follows:



	Gain (loss) recognized in accumulated other comprehensive loss as of			Location of gain (loss) reclassified from accumulated other comprehensive loss into income	Gain (loss) reclassified from accumulated other comprehensive loss into income
(dollars in thousands)	June 30, 2016				Three months ended June 30, 2016			Six months ended June 30, 2016
Interest rate swaps	$	(1,329	)	Interest expense	$	(302	)	$	(610	)

	June 30, 2015				Three months ended June 30, 2015			Six months ended June 30, 2015
Interest rate swaps	$	(873	)	Interest expense	$	(374	)	$	(749	)

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Commitments Related to Lease Agreements, Net of Related Lease Incentives

As of June 30, 2016, the future minimum lease commitments related to lease agreements, net of related lease incentives, were as follows:



Years ending December 31, (dollars in thousands)	Operating leases⁽¹⁾
2016 – remaining	$	6,872
2017	12,085
2018	11,369
2019	11,792
2020	11,073
Thereafter	97,994
Total minimum lease payments	$	151,185

Income Taxes (Tables)

6 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rates

Our income tax provision and effective income tax rates including the effects of period-specific events, were:



	Three months ended June 30,						Six months ended June 30,
(dollars in thousands)	2016			2015			2016			2015
Income tax provision	$	3,598		$	4,272		$	6,262		$	6,026
Effective income tax rate	31.5		%	37.8		%	32.8		%	34.7		%

Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock-Based Compensation Expense

The following table summarizes stock-based compensation expense:



	Three months ended June 30,				Six months ended June 30,
(dollars in thousands)	2016		2015		2016		2015
Included in cost of revenue:
Cost of subscriptions	$	290	$	325	$	571	$	468
Cost of maintenance	123		85		246		246
Cost of services	360		639		828		1,236
Total included in cost of revenue	773		1,049		1,645		1,950
Included in operating expenses:
Sales, marketing and customer success	921		804		1,822		1,506
Research and development	1,559		1,186		3,094		2,164
General and administrative	4,618		3,272		9,226		5,793
Total included in operating expenses	7,098		5,262		14,142		9,463
Total stock-based compensation expense	$	7,871	$	6,311	$	15,787	$	11,413

Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Changes in accumulated other comprehensive loss by component

The changes in accumulated other comprehensive loss by component, consisted of the following:



	Three months ended June 30,						Six months ended June 30,
(dollars in thousands)	2016			2015			2016			2015
Accumulated other comprehensive loss, beginning of period	$	(1,091	)	$	(1,827	)	$	(825	)	$	(1,032	)
By component:
Gains and losses on cash flow hedges:
Accumulated other comprehensive loss balance, beginning of period	$	(688	)	$	(633	)	$	(19	)	$	(164	)
Other comprehensive loss before reclassifications, net of tax effects of $195, $83, $750 and $522	(301		)	(133		)	(1,157		)	(831		)
Amounts reclassified from accumulated other comprehensive loss to interest expense	302			374			610			749
Tax benefit included in provision for income taxes	(119		)	(144		)	(240		)	(290		)
Total amounts reclassified from accumulated other comprehensive loss	183			230			370			459
Net current-period other comprehensive (loss) income	(118		)	97			(787		)	(372		)
Accumulated other comprehensive loss balance, end of period	$	(806	)	$	(536	)	$	(806	)	$	(536	)
Foreign currency translation adjustment:
Accumulated other comprehensive loss balance, beginning of period	$	(403	)	$	(1,194	)	$	(806	)	$	(868	)
Translation adjustments	(431		)	(196		)	(28		)	(522		)
Accumulated other comprehensive loss balance, end of period	(834		)	(1,390		)	(834		)	(1,390		)
Accumulated other comprehensive loss, end of period	$	(1,640	)	$	(1,926	)	$	(1,640	)	$	(1,926	)

Segment Information (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Reportable Segment Financial Results

Summarized reportable segment financial results, were as follows:



	Three months ended June 30,						Six months ended June 30,
(dollars in thousands)	2016			2015			2016			2015
Revenue by segment:
GMBU	93,970			76,138			$	181,922		$	146,067
ECBU	75,037			69,385			146,536			136,299
IBU	11,138			10,687			20,896			20,814
Other⁽¹⁾	46			49			93			72
Total revenue	$	180,191		$	156,259		$	349,447		$	303,252
Segment operating income⁽²⁾:
GMBU	45,262			39,338			$	87,873		$	74,001
ECBU	38,721			33,750			74,487			65,954
IBU	1,065			2,091			2,061			3,392
Other⁽¹⁾	18			255			48			(57		)
	85,066			75,434			164,469			143,290
Less:
Corporate unallocated costs⁽³⁾	(52,363		)	(46,571		)	(102,778		)	(93,186		)
Stock-based compensation costs	(7,871		)	(6,311		)	(15,787		)	(11,413		)
Amortization expense	(10,635		)	(8,091		)	(21,268		)	(16,218		)
Interest expense	(2,721		)	(1,873		)	(5,396		)	(3,559		)
Other expense, net	(65		)	(1,274		)	(170		)	(1,561		)
Income before provision for income taxes	$	11,411		$	11,314		$	19,070		$	17,353


(1)	Other includes revenue and the related costs from the sale of solutions and services not directly attributable to a reportable segment.


(2)	Segment operating income includes direct, controllable costs related to the sale of solutions and services by the reportable segment.


(3)	Corporate unallocated costs include research and development, depreciation expense, and certain corporate sales, marketing, general and administrative expenses.

Organization (Details)	Jun. 30, 2016 Customers
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Approximate number of active customers distributed across verticals	35,000

Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2016 USD ($)
Significant Accounting Policies [Line Items]
Number of days to exceed for customary payment terms	90 days
Contract term (in years) of the maintenance services	1 year
Contract term (in years) of fixed-rate programs	1 year
Customary Advanced Billing Period	1 year
Minimum [Member]
Significant Accounting Policies [Line Items]
Recognition period (in years) of revenue from hosting services	1 year
Recognition period (in years) of revenue from cloud-based solutions	1 year
Maximum [Member]
Significant Accounting Policies [Line Items]
Recognition period (in years) of revenue from hosting services	3 years
Recognition period (in years) of revenue from cloud-based solutions	3 years
ASU 2015-03 [Member]
Significant Accounting Policies [Line Items]
New accounting pronouncement, cumulative effect of change on equity or net assets	$ 0.5

Business Combinations (Details) - USD ($)
$ in Thousands

3 Months Ended

6 Months Ended

Oct. 02, 2015

Jun. 30, 2016

Mar. 31, 2016

Jun. 30, 2015

Jun. 30, 2016

Jun. 30, 2015

Business Acquisition [Line Items]

Total revenue

$ 180,191

$ 156,259

$ 349,447

$ 303,252

Income from operations

14,197

14,461

24,636

22,473

GMBU [Member]

Business Acquisition [Line Items]

Goodwill, purchase accounting adjustments

^[1]

(256)

Total revenue

93,970

$ 76,138

181,922

$ 146,067

Smart Tuition [Member]

Business Acquisition [Line Items]

Total cash consideration paid for the acquisition

$ 187,300

Goodwill, purchase accounting adjustments

$ (500)

Total revenue

8,200

17,400

Income from operations

$ 600

$ 1,800

Estimated fair value of accounts receivable acquired

2,800

Smart Tuition [Member] | GMBU [Member]

Business Acquisition [Line Items]

Goodwill, tax deductible amount

86,200

Revolving Credit Facility [Member] | Smart Tuition [Member]

Business Acquisition [Line Items]

Proceeds from lines of credit

$ 186,000

[1]	See Note 3 to these consolidated financial statements for details of certain of the immaterial measurement period adjustments.

Business Combinations (Purchase Price Allocation) (Details) - USD ($)
$ in Thousands

Jun. 30, 2016

Dec. 31, 2015

Oct. 02, 2015

Business Acquisition [Line Items]

Goodwill

$ 436,012

$ 436,449

Smart Tuition [Member]

Business Acquisition [Line Items]

Net working capital, excluding deferred revenue

$ 276

Property and equipment

2,457

(6,500)

2,637

97,800

90,302

^[1]

$ 186,972

[1]	(1) The purchase price differs from the net cash outlay of $187.3 million due to certain insignificant acquisition-related expenses included therein.

Business Combinations (Acquired Intangible Assets) (Details) - Smart Tuition [Member] $ in Thousands	Oct. 02, 2015 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 97,800
Weighted average amortization period (in years)	14 years
Customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 72,300
Weighted average amortization period (in years)	17 years
Marketing assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 1,200
Weighted average amortization period (in years)	3 years
Acquired technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 22,100
Weighted average amortization period (in years)	7 years
Non-compete agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 2,200
Weighted average amortization period (in years)	5 years

Business Combinations (Pro Forma Financial Information) (Details) - Smart Tuition [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015
Business Acquisition [Line Items]
Revenue	$ 164,170	$ 319,982
Net income	$ 6,084	$ 10,523
Basic earnings per share	$ 0.13	$ 0.23
Diluted earnings per share	$ 0.13	$ 0.23

Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Earnings Per Share [Abstract]
Net income	$ 7,813	$ 7,042	$ 12,808	$ 11,327	$ 25,649
Weighted average common shares	46,083,055	45,579,345	46,047,788	45,554,645
Stock-based compensation	844,571	823,362	817,430	734,795
Weighted average common shares assuming dilution	46,927,626	46,402,707	46,865,218	46,289,440
Earnings (Loss) Per Share, Basic and Diluted [Abstract]
Basic (in dollars per share)	$ 0.17	$ 0.15	$ 0.28	$ 0.25
Diluted (in dollars per share)	$ 0.17	$ 0.15	$ 0.27	$ 0.24

Earnings Per Share (Anti-Dilutive Securities) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Shares excluded from calculations of diluted earnings per share	0	12,705	44,134	10,152

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - Fair value measurements, recurring [Member] - USD ($)
$ in Thousands

Jun. 30, 2016

Dec. 31, 2015

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Derivative liabilities

$ 1,329

$ 438

Total financial liabilities

1,329

438

Derivative assets

406

Total financial assets

406

Level 1 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Derivative liabilities

Total financial liabilities

Derivative assets

Total financial assets

Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Derivative liabilities

^[1]

1,329

438

Total financial liabilities

1,329

438

Derivative assets

^[1]

406

Total financial assets

406

Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Derivative liabilities

Total financial liabilities

$ 0

Derivative assets

Total financial assets

$ 0

[1]	(1)The fair value of our interest rate swaps was based on model-driven valuations using LIBOR rates, which are observable at commonly quoted intervals. Accordingly, our interest rate swaps are classified within Level 2 of the fair value hierarchy.

Goodwill and Other Intangible Assets (Change in Goodwill by Reportable Segment) (Details)
$ in Thousands

6 Months Ended

Jun. 30, 2016

USD ($)

Goodwill [Roll Forward]

Beginning balance

$ 436,449

Ending balance

436,012

ECBU [Member]

Goodwill [Roll Forward]

Beginning balance

240,494

Effect of foreign currency translation

Ending balance

240,494

GMBU [Member]

Goodwill [Roll Forward]

Beginning balance

190,976

(256)

^[1]

Effect of foreign currency translation

Ending balance

190,720

IBU [Member]

Goodwill [Roll Forward]

Beginning balance

4,979

Effect of foreign currency translation

(181)

Ending balance

4,798

Other [Member]

Goodwill [Roll Forward]

Beginning balance

436,449

(256)

Effect of foreign currency translation

(181)

Ending balance

$ 436,012

[1]	See Note 3 to these consolidated financial statements for details of certain of the immaterial measurement period adjustments.

Goodwill and Other Intangible Assets (Summary of Amortization Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items]
Amortization	$ 10,635	$ 8,091	$ 21,268	$ 16,218
Cost of subscriptions [Member]
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items]
Amortization	7,853	5,767	15,664	11,539
Cost of maintenance [Member]
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items]
Amortization	1,332	1,006	2,664	2,159
Cost of services [Member]
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items]
Amortization	657	702	1,310	1,309
Cost of license fees and other [Member]
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items]
Amortization	85	92	170	199
Total included in cost of revenue [Member]
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items]
Amortization	9,927	7,567	19,808	15,206
Included in operating expenses [Member]
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items]
Amortization	$ 708	$ 524	$ 1,460	$ 1,012

Goodwill and Other Intangible Assets (Future Amortization Expense for Finite-Lived Intangible Assets) (Details) $ in Thousands	Jun. 30, 2016 USD ($)
Future amortization expense for finite-lived intangible assets:
2016 - remaining	$ 20,991
2017	41,426
2018	39,788
2019	36,479
2020	27,701
Total	$ 166,385

Consolidated Financial Statement Details (Components of Prepaid Expenses and Other Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred sales commissions	$ 34,027	$ 30,141
Prepaid software maintenance	20,670	15,308
Deferred professional services costs	2,586	3,603
Taxes, prepaid and receivable	6,398	9,121
Deferred tax asset	3,385	2,869
Prepaid royalties	1,442	1,767
Other assets	7,136	6,758
Total prepaid expenses and other assets	75,644	69,567
Less: Long-term portion	21,847	20,901
Prepaid expenses and other current assets	$ 53,797	$ 48,666

Consolidated Financial Statement Details (Components of Accrued Expenses and Other Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued bonuses	$ 11,979	$ 24,591
Accrued commissions and salaries	8,371	8,391
Taxes payable	4,523	3,923
Deferred rent liabilities	4,108	4,070
Lease incentive obligations	4,306	4,734
Unrecognized tax benefit	3,299	3,147
Customer credit balances	4,305	3,515
Accrued vacation costs	2,256	2,446
Accrued health care costs	2,564	2,356
Other liabilities	7,130	7,911
Total accrued expenses and other liabilities	52,841	65,084
Less: Long-term portion	8,102	7,623
Accrued expenses and other current liabilities	$ 44,739	$ 57,461

Consolidated Financial Statement Details (Components of Deferred Revenue) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 256,661	$ 237,335
Less: Long-term portion	6,212	7,119
Deferred revenue, current portion	250,449	230,216
Subscriptions [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	139,177	122,524
Maintenance [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	86,084	85,901
Services [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	29,725	28,517
License fees and other [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 1,675	$ 393

- Definition

The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

+ References + Details

- Definition

The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References + Details

Consolidated Financial Statement Details (Components of Other Expense, Net) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest income	$ 118	$ 7	$ 239	$ 15
Loss on sale of business	0	(1,976)	0	(1,976)
Other (expense) income, net	(183)	695	(409)	400
Other expense, net	$ (65)	$ (1,274)	$ (170)	$ (1,561)

Debt (Details) - USD ($) $ in Thousands			1 Months Ended	6 Months Ended
Debt (Details) - USD ($) $ in Thousands	Oct. 02, 2015	Oct. 01, 2014	Feb. 28, 2014	Jun. 30, 2016	Dec. 31, 2015	Jul. 17, 2015
Line of Credit Facility [Line Items]
Credit facility, term			5 years
Credit facility, maximum borrowing capacity			$ 325,000
Debt, gross				$ 405,056	$ 410,244
Payment of financing costs			2,500
Capitalized financing costs to be amortized over term of facility			1,100
Total deferred financing costs included in other assets				$ 700	900
Commitment fee on unused portion of revolving credit facility				0.225%
Line of credit facility, available increase capacity, amount			200,000
Minimum [Member]
Line of Credit Facility [Line Items]
Commitment fee on unused portion of revolving credit facility				0.15%
Maximum [Member]
Line of Credit Facility [Line Items]
Commitment fee on unused portion of revolving credit facility				0.225%
Revolving credit loans bear interest rate [Member] \| Base rate [Member] \| Minimum [Member]
Line of Credit Facility [Line Items]
Credit facility, basis spread on variable rate				0.00%
Revolving credit loans bear interest rate [Member] \| Base rate [Member] \| Maximum [Member]
Line of Credit Facility [Line Items]
Credit facility, basis spread on variable rate				0.50%
Revolving credit loans bear interest rate [Member] \| Variable rate one month LIBOR plus [Member]
Line of Credit Facility [Line Items]
Credit facility, variable interest rate				1.00%
Revolving credit loans bear interest rate [Member] \| Base rate option Federal Funds Rate plus [Member]
Line of Credit Facility [Line Items]
Credit facility, variable interest rate				0.50%
Revolving credit loans bear interest rate [Member] \| LIBOR [Member] \| Minimum [Member]
Line of Credit Facility [Line Items]
Credit facility, basis spread on variable rate				1.00%
Revolving credit loans bear interest rate [Member] \| LIBOR [Member] \| Maximum [Member]
Line of Credit Facility [Line Items]
Credit facility, basis spread on variable rate				1.50%
Term loans [Member]
Line of Credit Facility [Line Items]
Debt, gross			$ 175,000	$ 165,156	167,344
Revolving credit loans [Member]
Line of Credit Facility [Line Items]
Debt, gross				$ 239,900	$ 242,900
Line of credit facility, exercised capacity increase, amount		$ 100,000				$ 100,000
Line of credit facility, current borrowing capacity		250,000				$ 350,000
MicroEdge [Member] \| Revolving credit loans [Member]
Line of Credit Facility [Line Items]
Proceeds from lines of credit		$ 140,000
Smart Tuition [Member] \| Revolving credit loans [Member]
Line of Credit Facility [Line Items]
Proceeds from lines of credit	$ 186,000

Debt (Summary of Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Feb. 28, 2014
Line of Credit Facility [Line Items]
Debt, gross	$ 405,056	$ 410,244
Less: Unamortized debt discount	1,816	2,157
Less: Debt, current portion	4,375	4,375
Debt, net of current portion	$ 398,865	$ 403,712
Weighted average effective interest rate	2.33%	2.30%
Revolving credit loans [Member]
Line of Credit Facility [Line Items]
Debt, gross	$ 239,900	$ 242,900
Weighted average effective interest rate	2.19%	2.15%
Term loans [Member]
Line of Credit Facility [Line Items]
Debt, gross	$ 165,156	$ 167,344	$ 175,000
Weighted average effective interest rate	2.53%	2.51%
Short-term debt [Member]
Line of Credit Facility [Line Items]
Weighted average effective interest rate	2.14%	2.11%
Long-term debt [Member]
Line of Credit Facility [Line Items]
Weighted average effective interest rate	2.33%	2.30%

Debt (Annual Maturities Related to Credit Facility) (Details) $ in Thousands	Jun. 30, 2016 USD ($)
Debt Disclosure [Abstract]
2016 - remaining	$ 2,187
2017	4,375
2018	4,375
2019	394,119
2020	0
Thereafter	0
Total required maturities	$ 405,056

Derivative Instruments (Details) - USD ($) $ in Millions	6 Months Ended
Derivative Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015	Oct. 31, 2015	Oct. 31, 2014	Mar. 31, 2014
Derivative [Line Items]
Gain (loss) expected to be reclassified from accumulated other comprehensive loss into income	$ 1.0
Ineffective portion of interest rate swap(s)	$ 0.0	$ 0.0
March 2014 Swap [Member]
Derivative [Line Items]
Notional value of the swap agreement					$ 125.0
Future notional value of the swap agreement					$ 75.0
October 2014 Swap [Member]
Derivative [Line Items]
Notional value of the swap agreement				$ 75.0
Future notional value of the swap agreement				$ 50.0
October 2015 Swap [Member]
Derivative [Line Items]
Notional value of the swap agreement			$ 75.0

Derivative Instruments (Fair Value of Derivative Instruments) (Details) - Designated as hedging instrument [Member] - Interest rate swap [Member] - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Total derivative assets designated as hedging instruments	$ 0	$ 406
Total derivative liabilities designated as hedging instruments	(1,329)	438
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Interest rate swap assets, long-term portion	0	406
Accrued expenses and other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest rate swap liabilities, current portion	0	2
Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest rate swap liabilities, long-term portion	$ (1,329)	$ 436

Derivative Instruments (Effects of Derivative Instruments in Cash Flow Hedging Relationships) (Details) - Interest rate swap [Member] - Cash flow hedging [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in accumulated other comprehensive loss			$ (1,329)	$ (873)
Interest expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated other comprehensive loss into income			$ (610)	$ (749)
Interest expense [Member] \| 2014 Credit Facility [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from accumulated other comprehensive loss into income	$ (302)	$ (374)

Commitments and Contingencies (Details) $ in Millions		1 Months Ended		3 Months Ended		6 Months Ended
Commitments and Contingencies (Details) $ in Millions	May 04, 2012 ft² lease	May 31, 2016 USD ($) ft² lease	Oct. 31, 2008 lease	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Operating Leased Assets [Line Items]
Total rent expense				$ 3.5	$ 2.4	$ 5.5	$ 4.9
South Carolina [Member]
Operating Leased Assets [Line Items]
Reduction in rent expense				0.7	$ 0.6	1.6	$ 1.2
Building [Member] \| Texas [Member]
Operating Leased Assets [Line Items]
Number of renewal options (leases) \| lease	2
Lease agreement renewal term	5 years
Annual base rent of operating lease				2.3		2.3
Increase in square feet of leased space (square foot) \| ft²	20,000
Standby letter of credit for security deposit				2.0		2.0
Building [Member] \| Texas [Member] \| Minimum [Member]
Operating Leased Assets [Line Items]
Percentage of change in base rent	2.00%
Building [Member] \| Texas [Member] \| Maximum [Member]
Operating Leased Assets [Line Items]
Percentage of change in base rent	4.00%
Leasehold improvements [Member]
Operating Leased Assets [Line Items]
Remaining aggregate reimbursable leasehold improvements				3.6		3.6
Third-party technology [Member]
Long-term Purchase Commitment [Line Items]
Remaining aggregate minimum purchase commitment				$ 41.9		41.9
Third-party technology [Member] \| Minimum [Member]
Long-term Purchase Commitment [Line Items]
Contractual arrangement length				1 year
Third-party technology [Member] \| Maximum [Member]
Long-term Purchase Commitment [Line Items]
Contractual arrangement length				4 years
Current HQ Facility [Member] \| Building [Member] \| South Carolina [Member]
Operating Leased Assets [Line Items]
Lease agreement term			15 years
Number of renewal options (leases) \| lease			2
Lease agreement renewal term			5 years
Annual base rent of operating lease				$ 5.1		$ 5.1
Current HQ Facility [Member] \| Building [Member] \| South Carolina [Member] \| Maximum [Member]
Operating Leased Assets [Line Items]
Percentage of change in base rent			5.50%
New HQ Facility [Member] \| Building [Member] \| South Carolina [Member]
Operating Leased Assets [Line Items]
Lease agreement term		20 years
Number of renewal options (leases) \| lease		4
Lease agreement renewal term		5 years
Rentable square feet (square foot) \| ft²		172,000
Estimated total rent payments		$ 102.0
Estimated total leasehold improvement allowances		$ 12.9

Commitments and Contingencies (Future Minimum Lease Commitments Related to Lease Agreements, Net of Related Lease Incentives) (Details) $ in Thousands	Jun. 30, 2016 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2016 – remaining	$ 6,872
2017	12,085
2018	11,369
2019	11,792
2020	11,073
Thereafter	97,994
Total minimum lease payments	$ 151,185

Income Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Unrecognized tax benefit that, if recognized, would favorably affect the effective tax rate	$ 2.4	$ 2.3

Income Taxes (Schedule of Effective Income Tax Rates) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income tax provision	$ 3,598	$ 4,272	$ 6,262	$ 6,026
Effective income tax rate	31.50%	37.80%	32.80%	34.70%

Stock-Based Compensation (Summary of Stock-Based Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated stock-based compensation expense	$ 7,871	$ 6,311	$ 15,787	$ 11,413
Cost of subscriptions [Member]
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated stock-based compensation expense	290	325	571	468
Cost of maintenance [Member]
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated stock-based compensation expense	123	85	246	246
Cost of services [Member]
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated stock-based compensation expense	360	639	828	1,236
Total included in cost of revenue [Member]
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated stock-based compensation expense	773	1,049	1,645	1,950
Sales, marketing and customer success [Member]
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated stock-based compensation expense	921	804	1,822	1,506
Research and development [Member]
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated stock-based compensation expense	1,559	1,186	3,094	2,164
General and administrative [Member]
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated stock-based compensation expense	4,618	3,272	9,226	5,793
Total included in operating expenses [Member]
Employee Service Stock-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated stock-based compensation expense	$ 7,098	$ 5,262	$ 14,142	$ 9,463

Stockholders' Equity (Details) - $ / shares			1 Months Ended	3 Months Ended		6 Months Ended
Stockholders' Equity (Details) - $ / shares	Jun. 15, 2016	Mar. 15, 2016	Feb. 29, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Sep. 15, 2016
Dividends Payable [Line Items]
Annual dividend per share approved (in dollars per share)			$ 0.48
Quarterly dividends paid per share (in dollars per share)						$ 0.12
Dividends paid per share (in dollars per share)	$ 0.12	$ 0.12		$ 0.12	$ 0.12	$ 0.24	$ 0.24
Subsequent event [Member]
Dividends Payable [Line Items]
Dividends payable per share (in dollars per share)								$ 0.12

Stockholders' Equity (Changes in accumulated other comprehensive loss by component) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accumulated Other Comprehensive Income [Roll Forward]
Accumulated other comprehensive (loss) income, beginning of period	$ (1,091)	$ (1,827)	$ (825)	$ (1,032)
Translation adjustments	(431)	(196)	(28)	(522)
Accumulated other comprehensive (loss) income, end of period	(1,640)	(1,926)	(1,640)	(1,926)
Gains and losses on cash flow hedges [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Accumulated other comprehensive (loss) income, beginning of period	(688)	(633)	(19)	(164)
Other comprehensive loss before reclassifications	(301)	(133)	(1,157)	(831)
Amounts reclassified from accumulated other comprehensive loss to interest expense	302	374	610	749
Tax benefit included in provision for income taxes	(119)	(144)	(240)	(290)
Total amounts reclassified from accumulated other comprehensive loss	183	230	370	459
Net current-period other comprehensive (loss) income	(118)	97	(787)	(372)
Accumulated other comprehensive (loss) income, end of period	(806)	(536)	(806)	(536)
Unrealized gains (losses), tax effects	195	83	750	522
Foreign currency translation adjustment [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Accumulated other comprehensive (loss) income, beginning of period	(403)	(1,194)	(806)	(868)
Translation adjustments	(431)	(196)	(28)	(522)
Accumulated other comprehensive (loss) income, end of period	$ (834)	$ (1,390)	$ (834)	$ (1,390)

Segment Information (Reportable Segment Financial Results) (Details) - USD ($)
$ in Thousands

3 Months Ended

6 Months Ended

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2016

Jun. 30, 2015

Segment Reporting Information [Line Items]

Total revenue

$ 180,191

$ 156,259

$ 349,447

$ 303,252

Total segment operating income

85,066

75,434

164,469

143,290

Corporate unallocated costs

^[1]

(52,363)

(46,571)

(102,778)

(93,186)

Stock-based compensation costs

(7,871)

(6,311)

(15,787)

(11,413)

Amortization expense

(10,635)

(8,091)

(21,268)

(16,218)

Interest expense

(2,721)

(1,873)

(5,396)

(3,559)

Other expense, net

1,274

170

1,561

Income before provision for income taxes

11,411

11,314

19,070

17,353

ECBU [Member]

Segment Reporting Information [Line Items]

Total revenue

75,037

69,385

146,536

136,299

Total segment operating income

^[2]

38,721

33,750

74,487

65,954

GMBU [Member]

Segment Reporting Information [Line Items]

Total revenue

93,970

76,138

181,922

146,067

Total segment operating income

^[2]

45,262

39,338

87,873

74,001

IBU [Member]

Segment Reporting Information [Line Items]

Total revenue

11,138

10,687

20,896

20,814

Total segment operating income

^[2]

1,065

2,091

2,061

3,392

Other [Member]

Segment Reporting Information [Line Items]

Total revenue

^[3]

Total segment operating income

^[2],[3]

$ 18

$ 255

$ 48

$ (57)

[1]	Corporate unallocated costs include research and development, depreciation expense, and certain corporate sales, marketing, general and administrative expenses.
[2]	Segment operating income includes direct, controllable costs related to the sale of solutions and services by the reportable segment.
[3]	Other includes revenue and the related costs from the sale of solutions and services not directly attributable to a reportable segment.