TriNet (TNET) 10-Q 3 Aug 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Jul. 31, 2016
Document And Entity Information [Abstract]
Entity Registrant Name	TRINET GROUP INC
Trading Symbol	TNET
Entity Central Index Key	937,098
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		70,248,142

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 166,664	$ 166,178
Restricted cash	14,558	14,557
Prepaid income taxes	7,671	4,105
Prepaid expenses	12,922	8,579
Other current assets	2,049	1,359
Worksite employee related assets	947,571	1,373,386
Total current assets	1,151,435	1,568,164
Workers compensation receivable	39,803	29,204
Restricted cash and investments	112,807	101,806
Property and equipment, net	47,320	37,844
Goodwill	289,207	289,207
Other intangible assets, net	37,087	46,772
Other assets	18,817	19,452
Total assets	1,696,476	2,092,449
Current liabilities:
Accounts payable	16,629	12,904
Accrued corporate wages	25,676	28,963
Current portion of notes payable and borrowings under capital leases, net	25,006	32,970
Other current liabilities	11,197	11,402
Worksite employee related liabilities	943,403	1,369,497
Total current liabilities	1,021,911	1,455,736
Notes payable and borrowings under capital leases, net, less current portion	447,399	460,965
Workers compensation liabilities	130,523	105,481
Deferred income taxes	54,815	54,641
Other liabilities	8,365	7,545
Total liabilities	1,663,013	2,084,368
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $.000025 per share stated value; 20,000,000 shares authorized; no shares issued and outstanding at March 31, 2016 and December 31, 2015	0	0
Common stock, $.000025 per share stated value; 750,000,000 shares authorized; 70,718,423 and 70,371,425 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	513,439	494,397
Accumulated deficit	(479,680)	(485,595)
Accumulated other comprehensive loss	(296)	(721)
Total stockholders’ equity	33,463	8,081
Total liabilities and stockholders’ equity	$ 1,696,476	$ 2,092,449

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Preferred stock, per share stated value	$ 0.000025	$ 0.000025
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, per share stated value	$ 0.000025	$ 0.000025
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	70,500,720	70,371,425
Common stock, shares outstanding	70,500,720	70,371,425

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Professional service revenues	$ 109,593	$ 97,799	$ 221,996	$ 194,815
Insurance service revenues	636,253	542,208	1,256,789	1,070,770
Total revenues	745,846	640,007	1,478,785	1,265,585
Costs and operating expenses:
Insurance costs	596,673	517,994	1,166,362	1,001,197
Cost of providing services (exclusive of depreciation and amortization of intangible assets)	44,034	37,672	89,739	74,042
Sales and marketing	43,800	41,119	92,508	78,743
General and administrative	18,951	15,801	46,601	31,265
Systems development and programming costs	6,457	7,633	12,846	14,858
Amortization of intangible assets	5,005	10,608	9,985	21,825
Depreciation	4,559	3,195	8,475	6,629
Total costs and operating expenses	719,479	634,022	1,426,516	1,228,559
Operating income	26,367	5,985	52,269	37,026
Other income (expense):
Interest expense and bank fees	(5,038)	(4,764)	(10,080)	(9,968)
Other, net	163	68	121	518
Income before provision for income taxes	21,492	1,289	42,310	27,576
Provision for income taxes	9,210	2,597	18,451	13,073
Net income (loss)	$ 12,282	$ (1,308)	$ 23,859	$ 14,503
Net income (loss) per share:
Basic (in dollars per share)	$ 0.17	$ (0.02)	$ 0.34	$ 0.21
Diluted (in dollars per share)	$ 0.17	$ (0.02)	$ 0.33	$ 0.20
Weighted average shares:
Basic (in shares)	70,728,934	70,305,185	70,625,000	70,251,980
Diluted (in shares)	72,319,992	70,305,185	72,022,065	73,090,962

CONDENSED CONSOLIDATED STATEME5

CONDENSED 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
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 12,282	$ (1,308)	$ 23,859	$ 14,503
Other comprehensive income (loss), net of tax
Unrealized gains on investments	58	0	249	37
Foreign currency translation adjustments	16	27	176	(109)
Total other comprehensive income (loss), net of tax	74	27	425	(72)
Comprehensive income (loss)	$ 12,356	$ (1,281)	$ 24,284	$ 14,431

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating activities
Net income	$ 23,859	$ 14,503
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17,919	27,944
Deferred income taxes	0	1,977
Stock-based compensation	13,905	8,803
Excess tax benefit from equity incentive plan activity	(703)	(17,673)
Changes in operating assets and liabilities:
Restricted cash and investments	(21,041)	(13,413)
Prepaid expenses and other current assets	(5,033)	(5,082)
Workers compensation receivables	(10,599)	(5,083)
Other assets	238	(14,509)
Accounts payable	2,488	(35)
Prepaid income taxes	(2,863)	23,953
Accrued corporate wages and other current liabilities	(719)	(612)
Workers compensation and other liabilities	25,792	25,532
Worksite employee related assets	425,815	796,897
Worksite employee related liabilities	(426,094)	(798,024)
Net cash provided by operating activities	42,964	45,178
Investing activities
Acquisitions of businesses	(300)	0
Purchases of restricted investments	(14,959)	0
Proceeds from maturities of restricted investments	24,998	0
Purchase of property and equipment	(16,714)	(10,349)
Net cash used in investing activities	(6,975)	(10,349)
Financing activities
Proceeds from issuance of common stock on exercised options	2,220	4,639
Proceeds from issuance of common stock on employee stock purchase plan	2,304	2,723
Excess tax benefit from equity incentive plan activity	703	17,673
Repayment of notes payable and borrowings under capital leases	(22,810)	(35,325)
Repurchase of common stock	(16,459)	(30,000)
Awards effectively repurchased for required employee withholding taxes	(1,485)	(358)
Net cash used in financing activities	(35,527)	(40,648)
Effect of exchange rate changes on cash and cash equivalents	24	(109)
Net increase (decrease) in cash and cash equivalents	486	(5,928)
Cash and cash equivalents at beginning of period	166,178	134,341
Cash and cash equivalents at end of period	166,664	128,413
Supplemental disclosures of cash flow information
Cash paid for interest	8,091	7,806
Cash paid for income taxes, net	21,374	1,505
Supplemental schedule of noncash investing and financing activities
Payable for purchase of property and equipment	$ 1,581	$ 116

Description of Business and Sig

Description of Business and Significant Accounting Policies	6 Months Ended
	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Significant Accounting Policies	DESCRIPTION OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES Description of Business TriNet Group, Inc. (the Company or TriNet), a Delaware corporation incorporated in January 2000, provides comprehensive human resources, or HR, solutions for small to midsize businesses, or SMBs, across a number of industries under a co-employment model. The Company’s HR solutions are designed to manage an increasingly complex set of HR regulations, costs, risks and responsibilities for its clients, allowing them to focus on operating and growing their core businesses. These HR solutions include offerings, such as multi-state payroll processing and tax administration, employee benefits programs (including health insurance and retirement plans), workers compensation insurance and claims management, federal, state and local labor, employment and benefit law compliance, risk mitigation, expense and time management, human capital consulting and other services. TriNet’s proprietary, cloud-based HR software systems are used by its clients and their employees, whom the Company refers to as worksite employees, or WSEs, to store and manage their core HR-related information and conduct a variety of HR-related transactions. In addition, TriNet’s teams of in-house HR professionals also provide additional services upon request to support various stages of TriNet clients' growth, including talent management, recruiting and training, performance management consulting or other consulting services. TriNet’s clients are distributed across a variety of industries, including technology, life sciences, not-for-profit, professional services, financial services, property management, retail, manufacturing, and hospitality. TriNet’s sales and marketing, client services and product development teams are increasingly focused on specific industry verticals. This vertical approach helps gives us a better understanding of the HR needs facing SMBs in particular industries, which we believe helps us provide HR solutions and services tailored to the specific needs of clients in these verticals. Segment Information The Company operates in one reportable segment in accordance with Accounting Standard Codification (ASC) 280 – Segment Reporting, issued by the Financial Accounting Standards Board (FASB). All of the Company’s service revenues are generated from external clients. Less than 1% of revenue is generated outside of the United States of America (U.S.). Substantially all of the Company’s long-lived assets are located in the U.S. Basis of Presentation The accompanying unaudited condensed consolidated financial statements and footnotes thereto of the Company and its wholly owned subsidiaries have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 . There have been no changes to the Company’s significant accounting policies described in such Annual Report that have had a material impact on its consolidated financial statements and related notes. All intercompany accounts and transactions have been eliminated in consolidation. The accompanying unaudited condensed consolidated balance sheets present the current assets and current liabilities directly related to the processing of human resources transactions as WSE-related assets and WSE-related liabilities, respectively. WSE-related assets consist of cash and investments restricted for current workers compensation claim payments, payroll funds collected, accounts receivable, unbilled service revenues, and refundable or prepaid amounts related to the Company-sponsored workers compensation and health plan programs. WSE-related liabilities consist of client prepayments, wages and payroll taxes accrued and payable, and liabilities related to the Company-sponsored workers compensation and health plan programs resulting from workers compensation case reserves, premium amounts due to providers for enrolled employees, and workers compensation and health reserves that are expected to be disbursed within the next 12 months. The unaudited interim financial statements have been prepared on the same basis as the annual financial statements and, in the opinion of management, reflect all adjustments, consisting only of normal recurring adjustments, necessary for fair presentation. Certain prior period amounts in the condensed consolidated statement of cash flows have been reclassified to conform to the current presentation. The results of the six months ended June 30, 2016 are not necessarily indicative of the results to be expected for the year ending December 31, 2016 . Seasonality and Insurance Variability The Company's business is affected by cyclicality in business activity and WSE behavior. Historically, the Company has experienced its highest monthly addition of WSEs, as well as its highest monthly levels of client attrition, in the month of January, primarily because clients that change their payroll service providers tend to do so at the beginning of a calendar year. In addition, the Company experiences higher levels of client attrition in connection with renewals of the health insurance TriNet sponsors for its WSEs, in the event that such renewals result in higher costs to its clients. The Company has also historically experienced higher insurance claim volumes in the second and third quarters of the year than in the first and fourth quarters, as WSEs typically access their health care providers more often in the second and third quarters, which has negatively impacted the Company's insurance costs in these quarters. The Company has also experienced variability on a quarterly basis in the amount of our health and workers compensation insurance costs due to the number and severity of insurance claims being unpredictable. These historical trends may change, and other seasonal trends and variability may develop which could make it more difficult for the Company to manage its business. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect certain reported amounts and disclosures. These estimates include, but are not limited to, allowances for accounts receivable, workers compensation-related reserve estimates, health plan reserve estimates, recoverability of goodwill and other intangible assets, income taxes, stock-based compensation and other contingent liabilities. Such estimates are based on historical experience and on various other assumptions that management believes to be reasonable under the circumstances. Actual results could differ from those estimates. Recent Accounting Pronouncements In March 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-09— Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting , as part of the Simplification Initiative. The areas for simplification in this update involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. Some of the areas for simplification apply only to nonpublic entities. The amendment is effective for annual reporting periods, and interim periods within those years beginning after December 15, 2016. Early adoption is permitted. The Company is currently in the process of evaluating the impact of the adoption of this standard on its consolidated financial statements. In February 2016, the FASB issued ASU 2016-02— Leases . The amendment requires that lease arrangements longer than 12 months result in an entity recognizing an asset and liability. The amendment is effective for annual reporting periods, and interim periods within those years beginning after December 15, 2018. Early adoption is permitted. The Company is currently in the process of evaluating the impact of the adoption of this standard on its consolidated financial statements. In April 2015, the FASB issued ASU 2015-03— Simplifying the Presentation of Debt Issuance Costs, and, in August 2015, the FASB issued ASU 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements. These ASUs require debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the carrying amount of that debt, which is consistent with the presentation of debt discounts and premiums. The presentation and subsequent measurement of debt issuance costs associated with lines of credit, may be presented as an asset and amortized ratably over the term of the line of credit arrangement, regardless of whether there are outstanding borrowings on the arrangement. The recognition and measurement guidance for debt issuance costs are not affected by these ASUs. The Company adopted these ASUs as of March 31, 2016. The adoption of the ASUs resulted in a reclassification of unamortized debt issuance costs of $2.4 million from other current assets to current portion of notes payable and borrowings under capital leases and $3.4 million from other assets to notes payable and borrowings under capital leases, less current portion, as of December 31, 2015. Unamortized debt issuance costs related to the Company’s revolving credit facility will remain classified as an other asset in the accompanying consolidated balance sheets. The adoption of this guidance did not have any impact on the Company’s consolidated statements of operations, comprehensive income or cash flows. In May 2014, the FASB issued ASU 2014-09— Revenue from Contracts with Customers , which will replace most existing revenue recognition guidance under GAAP. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard provides a five-step analysis of transactions to determine when and how revenue is recognized. In July 2015, the FASB deferred the effective date to annual reporting periods, and interim periods within those years, beginning after December 15, 2017. Early adoption at the original effective date of December 15, 2016 is permitted. The amendments may be applied retrospectively or as a cumulative-effect adjustment as of the date of adoption. In March, April and May 2016, the FASB issued ASU 2016-08 Principal versus Agent Considerations (Reporting Revenue Gross versus Net), 2016-10 Identifying Performance Obligations and Licensing and 2016-12 Narrow-Scope Improvements and Practical Expedients , respectively, providing further clarification to be considered when implementing ASU 2014-09. The Company has not yet selected a method of adoption and is currently evaluating the effect that the amendments will have on the consolidated financial statements.

Worksite Employee-Related Asset

Worksite Employee-Related Assets and Liabilities	6 Months Ended
	Jun. 30, 2016
Other Industries [Abstract]
Worksite Employee-Related Assets and Liabilities	WORKSITE EMPLOYEE-RELATED ASSETS AND LIABILITIES The following schedule presents the components of the Company’s WSE-related assets and WSE-related liabilities (in thousands): June 30, December 31, Worksite employee-related assets: Restricted cash $ 113,524 $ 92,917 Restricted investments 2,319 3,819 Payroll funds collected 583,465 859,322 Unbilled revenue, net of advance collections of $173,204 and $11,875 at June 30, 2016 and December 31, 2015, respectively 225,786 213,837 Accounts receivable, net of allowance for doubtful accounts of $528 and $1,158 at June 30, 2016 and December 31, 2015, respectively 6,121 5,060 Prepaid health plan expenses 9,053 8,088 Refundable workers compensation premiums 1,828 2,428 Prepaid workers compensation expenses 1,455 744 Other payroll assets 4,020 187,171 Total worksite employee-related assets $ 947,571 $ 1,373,386 Worksite employee-related liabilities: Unbilled wages accrual $ 365,154 $ 202,396 Payroll taxes payable 278,004 883,608 Health benefits payable 127,948 128,028 Customer prepayments 68,535 57,758 Workers compensation payable 69,330 66,174 Other payroll deductions 34,432 31,533 Total worksite employee-related liabilities $ 943,403 $ 1,369,497 Other payroll assets and payroll taxes payable above include a receivable due from one client at December 31, 2015 for $181 million related to an end of year payroll tax liability for which funding was received in January 2016. Payroll taxes payable, workers compensation payable and health benefits payable also include the related amounts of approximately 2,500 Company employees.

Workers Compensation

Workers Compensation	6 Months Ended
	Jun. 30, 2016
Insurance [Abstract]
Workers Compensation	WORKERS COMPENSATION The Company has agreements with various insurance carriers to provide workers compensation insurance coverage for worksite employees, including programs where either the Company or the carrier retains custody of claim deposits paid by the Company. Insurance carriers are responsible for administrating and paying claims. The Company is responsible for reimbursing each carrier up to a deductible limit per occurrence. In cases where the carrier retains custody of claim deposits, any excess deposits held by the carrier can be returned to the Company over time, based on terms defined within the respective agreements. The following summarizes the activities in the balance sheet for unpaid claims and claims adjustment expenses within workers compensation assets and liabilities (in thousands): Six months ended Year ended December 31, 2015 Liability for unpaid claims and claims adjustment at beginning of period $ 190,102 $ 148,034 Incurred related to: Current year 51,346 89,137 Prior years 8,004 26,391 Total incurred 59,350 115,528 Paid related to: Current year (2,278 ) (16,376 ) Prior years (32,463 ) (57,084 ) Total paid (34,741 ) (73,460 ) Liability for unpaid claims and claims adjustment at end of period $ 214,711 $ 190,102 Assets held by third parties to cover claim liabilities (65,558 ) (58,522 ) Workers compensation premiums and other liabilities 17,623 9,455 Other workers compensation assets (8,554 ) (1,012 ) Total net workers compensation liabilities $ 158,222 $ 140,023 Location on Condensed Consolidated Balance Sheet: Workers compensation liabilities Current portion included in worksite employee-related liability $ 69,330 $ 66,174 Long term portion 130,523 105,481 Total workers compensation liabilities $ 199,853 $ 171,655 Workers compensation receivables Current portion included in worksite employee-related asset $ (1,828 ) $ (2,428 ) Long term portion (39,803 ) (29,204 ) Total workers compensation receivables $ (41,631 ) $ (31,632 ) Total net workers compensation liabilities $ 158,222 $ 140,023 Incurred claims related to prior years represent changes in estimates for ultimate losses on workers compensation claims. Under the terms of its agreements with its workers compensation insurance carriers, the Company collects and holds premiums in restricted accounts pending claims payments by the claims administrator. As of June 30, 2016 and December 31, 2015 , such restricted amounts of $62.6 million and $49.8 million , respectively, are included in restricted cash and restricted investments within WSE-related assets in the accompanying condensed consolidated balance sheets. In addition, at June 30, 2016 and December 31, 2015 , $112.8 million and $101.8 million , respectively, are presented as restricted long-term cash and investments. Assets held by third parties to cover claim liabilities represents prefunded claim obligations paid to carriers in excess of estimated total claim liabilities, which will be applied to incurred claims. The funds remain restricted until the plan year to which they relate are settled.

Marketable Securities and Fair

Marketable Securities and Fair Value Measurements	6 Months Ended
	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Marketable Securities and Fair Value Measurements	MARKETABLE SECURITIES AND FAIR VALUE MEASUREMENTS The Company’s noncurrent restricted cash and investments include $55.0 million of available-for-sale marketable securities and $57.8 million of cash collateral at June 30, 2016 . The Company’s restricted investments within WSE-related assets include $2.3 million of certificates of deposit as of June 30, 2016 . The available-for-sale marketable securities as of June 30, 2016 and December 31, 2015 consist of the following (in thousands): Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value June 30, 2016: U.S. treasuries $ 54,172 $ 281 $ — $ 54,453 Mutual funds 500 11 — 511 Total investments $ 54,672 $ 292 $ — $ 54,964 December 31, 2015: U.S. treasuries $ 64,226 $ 9 $ (144 ) $ 64,091 Mutual funds 500 4 — 504 Total investments $ 64,726 $ 13 $ (144 ) $ 64,595 There were no realized gains or losses for the six months ended June 30, 2016 and 2015 . As of June 30, 2016 and December 31, 2015 , the contractual maturities of the U.S. treasuries were less than four years. As of June 30, 2016 , none of the Company’s U.S. treasuries were in an unrealized loss position. Unrealized losses are principally caused by changes in interest rates. In analyzing an issuer’s financial condition, the Company considers whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and industry analysts’ reports. As the Company has the ability and intent to hold debt securities until maturity, or for the foreseeable future as classified as available for sale, no decline was deemed to be other-than-temporary. Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, the Company uses a three-tier value hierarchy, which prioritizes the inputs used in measuring fair value as follows: • Level I—observable inputs for identical assets or liabilities, such as quoted prices in active markets • Level II—inputs other than the quoted prices in active markets that are observable either directly or indirectly • Level III—unobservable inputs in which there is little or no market data, which requires the Company to develop its own assumptions This hierarchy requires the Company to use observable market data when available and to minimize the use of unobservable inputs when determining fair value. The following table summarizes the Company’s financial assets measured at fair value on a recurring basis (in thousands): Total Fair Value Level I Level II Level III June 30, 2016: Certificates of deposit $ 2,319 $ 2,319 $ — $ — U.S. treasuries 54,453 54,453 — — Mutual funds 511 511 — — Total $ 57,283 $ 57,283 $ — $ — December 31, 2015: Certificates of deposit $ 2,319 $ 2,319 $ — $ — U.S. treasuries 64,091 64,091 — — Mutual funds 504 504 — — Total $ 66,914 $ 66,914 $ — $ — There were no transfers between Level I and Level II assets during the six months ended June 30, 2016 or the year ended December 31, 2015 . As of June 30, 2016 and December 31, 2015 , certificates of deposit consisted of certificates of deposit held by domestic financial institutions, which are presented as restricted investments within WSE-related assets in the accompanying condensed consolidated balance sheets. The carrying value of the Company’s financial instruments not measured at fair value, including cash, cash equivalents, restricted cash, accounts receivable, accounts payable, approximates fair value due to their relatively short term nature. The fair value of these instruments would be categorized as Level II of the fair value hierarchy, with the exception of cash and cash equivalents, which would be categorized as Level I. At June 30, 2016 and December 31, 2015 , the carrying value of the Company’s notes payable of $476.8 million and $499.6 million , respectively, approximated fair value. The estimated fair values of the Company’s notes payable are considered a Level II valuation in the hierarchy for fair value measurement and are based on a cash flow model discounted at market interest rates that considers the underlying risks of unsecured debt.

Notes Payable and Borrowings un

Notes Payable and Borrowings under Capital Leases	6 Months Ended
	Jun. 30, 2016
Line of Credit Facility [Abstract]
Notes Payable and Borrowings under Capital Leases	NOTES PAYABLE AND BORROWINGS UNDER CAPITAL LEASES The following schedule summarizes the components of the Company’s notes payable and borrowings under capital leases balances (in thousands): June 30, December 31, Notes payable under credit facility $ 476,772 $ 499,563 Deferred loan costs (4,501 ) (5,781 ) Capital leases 134 153 Less: current portion of notes payable and borrowings under capital leases (25,006 ) (32,970 ) $ 447,399 $ 460,965 The discussion below addresses the credit facility in place at June 30, 2016, as amended in 2014. The Company amended the credit facility further in July 2016 as discussed in Note 11. In July 2014, the Company amended and restated its first lien credit facility pursuant to an amended and restated first lien credit agreement (the Amended and Restated Credit Agreement). The Amended and Restated Credit Agreement provides for: (i) $375 million principal amount of tranche A term loans, (ii) $200 million principal amount of tranche B term loans, and (iii) a revolving credit facility of $75 million . The $75.0 million revolving credit facility includes capacity for a $40.0 million letter of credit facility and a $10.0 million swingline facility. The total unused portion of the revolving credit facility was $59.5 million as of June 30, 2016 . The proceeds of the tranche A term loans were used to refinance in part the tranche B-2 term loans outstanding under the original first lien credit facility. The proceeds of the tranche B term loans were used to (i) refinance the remaining tranche B-2 term loans outstanding under the original first lien credit facility, (ii) refinance other amounts outstanding under the original first lien credit facility and (iii) pay fees and expenses related thereto. The revolving credit facility replaced the revolving credit facility under the original first lien credit facility. The tranche A term loans and the revolving credit facility will mature on July 9, 2019 . The tranche B term loans will mature on July 9, 2017 . Loans under the revolving credit facility are expected to be used for working capital and other general corporate purposes. The tranche A term loans and loans under the revolving credit facility bear interest, at the Company’s option, at a rate equal to either the LIBOR rate, plus an applicable margin equal to 2.75% per annum, or the prime lending rate, plus an applicable margin equal to 1.75% per annum. The applicable margins for the tranche A term loans and loans under the revolving credit facility are subject to specified rate adjustments of 0.25% , based upon the Company’s total leverage ratio. The tranche B term loans bear interest, at the Company’s option, at a rate equal to either the LIBOR rate, plus an applicable margin equal to 2.75% per annum or the prime lending rate, plus an applicable margin equal to 1.75% per annum. The Company is required to pay a commitment fee of 0.50% , subject to decrease to 0.375% based on its total leverage ratio, on the daily unused amount of the commitments under the revolving credit facility, as well as fronting fees and other customary fees for letters of credit issued under the revolving credit facility. The Company is permitted to make voluntary prepayments at any time without payment of a premium. The Company is required to make mandatory prepayments of term loans (without payment of a premium) with (i) net cash proceeds from issuances of debt (other than certain permitted debt), (ii) net cash proceeds from certain non-ordinary course asset sales and casualty and condemnation proceeds (subject to reinvestment rights and other exceptions), and (iii) beginning with the year ending December 31, 2015, 50% of its excess cash flow (subject to decrease to (x) 25% if its total leverage ratio as of the last day of the year is less than 3.75 to 1.0 and equal to or greater than 3.00 to 1.0, and (y) 0% if the total leverage ratio as of the last day of the year is less than 3.00 to 1.0), provided that the Company may defer prepayments based on excess cash flow to the extent such payments would result in the working capital being less than $10 million (after giving effect to such prepayments). The Company reclassified $12.7 million from long-term debt to current at December 31, 2015 in anticipation of this prepayment and paid that amount in April 2016. The tranche A term loans will be repaid in equal quarterly installments in an aggregate annual amount equal to: (i) beginning on December 31, 2014 to December 31, 2016 , 5% of the original principal amount thereof, (ii) beginning on December 31, 2016 to December 31, 2018 , 7.5% of the original principal amount thereof, and (iii) beginning on December 31, 2018 to June 30, 2019 , 10% of the original principal amount thereof with any remaining balance payable on the final maturity date of the tranche A term loans. The tranche B term loans will be repaid in equal quarterly installments in an aggregate annual amount equal to 1% of the principal amount thereof, with any remaining balance payable on the final maturity date of the tranche B term loans. In March 2015, the Company repaid $25.0 million of the tranche B term loan. As a result, a portion of the loan fees associated with the first lien credit facility was fully amortized in March 2015 for a charge of $0.4 million . The Amended and Restated Credit Agreement contains customary representations and warranties and customary affirmative and negative covenants applicable to the Company and its subsidiaries, including, among other things, restrictions on indebtedness, liens, investments, mergers, dispositions, prepayment of other indebtedness, and dividends and other distributions. The Amended and Restated Credit Agreement also contains financial covenants that require the Company to maintain a minimum consolidated interest coverage ratio of at least 3.50 to 1.00 and a maximum total leverage ratio, currently at 4.25 to 1.00 . The Company was in compliance with these financial covenants under the credit facilities at June 30, 2016 and December 31, 2015. The credit facility is secured by substantially all of the Company’s assets and the assets of the borrower and of the subsidiary guarantors, other than specifically excluded assets.

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2016
Equity [Abstract]
Stockholders' Equity	STOCKHOLDERS’ EQUITY Equity-Based Incentive Plans In 2000, the Company established the 2000 Equity Incentive Plan (the 2000 Plan), which provided for granting incentive stock options, nonstatutory stock options, bonus awards and restricted stock awards to eligible employees, directors, and consultants of the Company. In December 2009, the Board of Directors approved the 2009 Equity Incentive Plan (the 2009 Plan) as the successor to and continuation of the 2000 Plan. As of the 2009 Plan effective date, remaining shares available for issuance under the 2000 Plan were cancelled and became available for issuance under the 2009 Plan. No additional stock awards will be granted under the 2000 Plan. The 2009 Plan provides for the grant of the following awards to eligible employees, directors, and consultants: incentive stock options, nonstatutory stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards, performance stock awards, performance cash awards, and other stock awards. Incentive stock options may only be granted to employees. Non-employee directors are eligible to receive restricted stock units (RSUs) automatically at designated intervals over their period of continuous service on the Board. The 2009 Plan, as amended, provides that the number of shares reserved for issuance under the 2009 Plan will increase on January 1 of each year for a period of up to five years by 4.5% of the total number of shares of capital stock outstanding on December 31 of the preceding calendar year, which will begin on January 1, 2015 and continue through January 1, 2019. On January 1, 2016, an additional 3,166,714 shares were automatically reserved for issuance under the amended 2009 Plan. The exercise price per share of all incentive stock options granted under the 2000 Plan and the 2009 Plan must be at least equal to the fair market value of the shares at the date of grant as determined by the Board of Directors. Options generally have a maximum contractual term of 10 years. Incentive stock options granted at 110% of the fair market value to stockholders who have greater than 10% ownership have a maximum term of five years. Options granted to non-employee directors in connection with an initial election or appointment generally vest at the rate of 33% of the total options one year after the grant date and 1/36 of the total options granted monthly thereafter. All other options granted to non-employee directors generally vest 100% one year from grant date. Before 2015, options granted to employees generally vest over four years with 25% of the total options vesting a year after the grant date and then the remaining options vest in monthly equal installments for three years thereafter. Starting in 2015, the options granted to newly hired employees generally vest at a rate of 25% of the total options a year after the grant date and then 1/16 of the total options granted on the 15th day of the second month of each calendar quarter thereafter. Options granted to existing employees generally vest at a rate of 1/16 of the total options granted on the 15th day of the second month of each calendar quarter following the grant date. The Company has granted RSUs to members of the Board of Directors, certain executives and employees. These RSUs represent rights to receive shares of the Company’s common stock on satisfaction of applicable vesting conditions. The fair value of RSUs is equal to the fair value of the Company’s common stock on the date of grant. RSUs granted to newly elected or appointed non-employee directors generally vest on the first anniversary of the Company’s most recent annual grants. RSUs granted to non-employee directors in connection with an annual grant generally vest 100% one year from the grant date. RSUs granted to newly hired employees generally vest at a rate of 25% of the total RSUs one year after the grant date and then 1/16 of the total RSUs granted on the 15th day of the second month of each calendar quarter thereafter. RSUs granted to existing employees generally vest at a rate of 1/16 of the total RSUs granted on the 15th day of the second month of each calendar quarter following the grant date. In March 2015, the Company granted performance-based restricted stock units (PSUs) to its executives intended to represent 33.3% of each executive’s annual long-term incentive compensation award value in 2015. These PSUs vest over three years based on the Company’s attainment of annual financial performance goals as well as the executive’s continued employment through each vesting date. The number of shares that ultimately vest each year will range from 0 to 200% of the annual target amount, based on the Company’s performance. Cumulative financial performance metrics and goals are established for these awards at the grant date and the tranche of each award related to that period’s performance goal is treated as a separate grant for accounting purposes. The financial performance metric established for the performance awards is cumulative annual growth rate in the Company’s net service revenues. These values are being recognized over the tranches’ 12 -month, 24 -month and 36 -month service periods. The Company began recording stock-based compensation expense for these tranches in March 2015, when the financial performance goals were established. Equity incentive plan activity for the six months ended June 30, 2016 is summarized as follows: Equity Incentive Plan Activity Shares Available for Grant Balance at December 31, 2015 4,991,583 Authorized 3,166,714 Granted (2,016,707 ) Forfeited 330,554 Expired 65,626 Shares withheld for taxes and not issued 95,351 Balance at June 30, 2016 6,633,121 The following table summarizes stock option activity under the Company’s equity-based plans for the six months ended June 30, 2016 : Stock Option Activity Number Weighted Weighted Aggregate Balance at December 31, 2015 4,446,149 $ 8.96 7.56 $ 52,108 Exercised (597,212 ) 3.72 Forfeited (180,413 ) 21.01 Expired (65,626 ) 28.59 Balance at June 30, 2016 3,602,898 $ 8.86 7.10 $ 46,628 Exercisable at June 30, 2016 2,169,882 $ 6.65 6.78 $ 31,929 Vested and expected to vest at June 30, 2016 3,524,634 $ 8.71 7.08 $ 46,010 There were no stock options granted during the six months ended June 30, 2016 . The weighted-average grant date fair value of stock options granted during the three months ended June 30, 2015 was $11.63 per share. The weighted-average grant date fair value of stock options granted during the six months ended June 30, 2015 was $13.49 per share. The total fair value of options vested for the three months ended June 30, 2016 and 2015 was $1.6 million and $1.3 million , respectively. The total fair value of options vested for the six months ended June 30, 2016 and 2015 was $3.7 million and $5.7 million , respectively. The total intrinsic value of options exercised for the three months ended June 30, 2016 and 2015 was $5.9 million and $12.8 million , respectively. The total intrinsic value of options exercised for the six months ended June 30, 2016 and 2015 was $8.1 million and $43.0 million , respectively. Cash received from options exercised during the six months ended June 30, 2016 and 2015 was $2.2 million and $4.7 million , respectively. The exercise price of all options granted was equal to the fair value of the common stock on the date of grant. As of June 30, 2016 , unrecognized compensation expense, net of forfeitures, associated with nonvested options outstanding was $9.0 million and is expected to be recognized over a weighted-average period of 1.75 years . The following table summarizes RSU activity under the Company’s equity-based plans for the six months ended June 30, 2016 : Restricted Stock Unit Activity Number of Units Weighted-Average Grant Date Fair Value Nonvested at December 31, 2015 956,687 $ 28.03 Granted 2,016,707 17.82 Vested (341,969 ) 25.25 Forfeited (126,267 ) 22.28 Nonvested at June 30, 2016 2,505,158 $ 20.48 The total grant date fair value of RSUs granted in the three months ended June 30, 2016 and 2015 was $2.9 million and $0.3 million , respectively. The total grant date fair value of RSUs granted in the six months ended June 30, 2016 and 2015 was $35.9 million and $24.9 million , respectively. The total grant date fair value of RSUs vested in the three months ended June 30, 2016 and 2015 was $3.1 million and $1.0 million , respectively. The total grant date fair value of RSUs vested in the six months ended June 30, 2016 and 2015 was $8.6 million and $1.1 million , respectively. As of June 30, 2016 , unrecognized compensation expense, net of forfeitures, associated with the nonvested RSUs outstanding was $45.8 million , and is expected to be recognized over a weighted-average period of 3.08 years . The following table summarizes PSU activity under the Company’s equity-based plans for the six months ended June 30, 2016 : Performance Based Restricted Stock Unit Activity Number of Units Weighted-Average Outstanding units at December 31, 2015 173,286 $ 33.51 Forfeited (23,874 ) $ 33.51 Outstanding units at June 30, 2016 149,412 $ 33.51 As of June 30, 2016 , there was $0.6 million of total unrecognized compensation expense, net of estimated forfeitures, associated with nonvested PSUs outstanding, which is expected to be recognized over a period of 1.50 years . Employee Stock Purchase Plan The Company adopted the 2014 Employee Stock Purchase Plan (ESPP) in February 2014, which became effective on March 26, 2014. The ESPP was approved with a reserve of 1.1 million shares of common stock for future issuance under various terms provided for in the ESPP, which will automatically increase on January 1 of each year from 2015 through 2024 by the lesser of 1% of the total number of shares outstanding on December 31 of the preceding calendar year or 1,800,000 shares. On January 1, 2016, an additional 703,714 shares were automatically reserved for issuance under the ESPP. The purchase price is equal to the lesser of 85% of the fair market value of the common stock on the offering date and 85% of the fair market value of the common stock on the applicable purchase date. Offering periods are six months in duration and will end on or about May 15 and November 15 of each year. Employees may contribute a minimum of 1% and a maximum of 15% of their earnings. During the six months ended June 30, 2016 , employees purchased 147,354 shares under the ESPP at a price of $15.64 per share for cash proceeds of $2.3 million . Stock Repurchases In May 2014, the board of directors authorized a program to repurchase in the aggregate up to $15 million of the Company's outstanding common stock. The board of directors subsequently approved incremental increases to the ongoing stock repurchase program of an additional $30 million in November 2014, an additional $50 million in June 2015 and an additional $50 million in February 2016. In 2014 and 2015, the Company repurchased approximately $15 million and approximately $48.4 million , respectively, of its outstanding common stock. During the six months ended June 30, 2016 , the Company repurchased 861,889 shares of common stock for $16.4 million . As of June 30, 2016 , $65.2 million remained available for further repurchases of the Company’s common stock under the Company’s ongoing stock repurchase program. Stock repurchases under the program are primarily intended to offset the dilutive effect of share-based employee incentive compensation. Stock-Based Compensation Stock-based compensation expense of $13.9 million and $8.8 million was recognized for the six months ended June 30, 2016 and 2015 , respectively. Income tax benefit of $4.8 million and $2.8 million was recognized relating to stock-based compensation expense for the six months ended June 30, 2016 and 2015 , respectively. The tax benefit realized from stock options exercised was $2.4 million and $13.9 million for the six months ended June 30, 2016 and 2015 , respectively. The fair value of stock-based awards is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions: Stock Option Assumptions Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Expected term (in years) N/A 6.11 N/A 6.08 Expected volatility N/A 39 % N/A 39 % Risk-free interest rate N/A 1.96 % N/A 1.96 % Expected dividend yield N/A 0 % N/A 0 % ESPP Assumptions Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Expected term (in years) 0.50 0.50 0.50 0.50 Expected volatility 43-76% 33-43% 43-76% 33-43% Risk-free interest rate 0.33-0.38% 0.07-0.08% 0.33-0.38% 0.07-0.08% Expected dividend yield 0 % 0 % 0 % 0 % Stock-based compensation expense for stock-based awards made to the Company’s employees pursuant to the equity plans was as follows (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Cost of providing services $ 1,624 $ 1,214 $ 3,439 $ 1,972 Sales and marketing 1,643 1,309 3,628 2,226 General and administrative 2,644 1,842 5,617 3,863 Systems development and programming costs 597 518 1,221 742 $ 6,508 $ 4,883 $ 13,905 $ 8,803

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE The following table sets forth the computation of the Company’s basic and diluted net income (loss) per share attributable to common stock (in thousands, except per share data): Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Net income (loss) $ 12,282 $ (1,308 ) $ 23,859 $ 14,503 Weighted average shares of common stock outstanding 70,729 70,305 70,625 70,252 Basic EPS $ 0.17 $ (0.02 ) $ 0.34 $ 0.21 Net income (loss) $ 12,282 $ (1,308 ) $ 23,859 $ 14,503 Weighted average shares of common stock 70,729 70,305 70,625 70,252 Dilutive effect of stock options and restricted stock units 1,591 — 1,397 2,839 Weighted average shares of common stock outstanding 72,320 70,305 72,022 73,091 Diluted EPS $ 0.17 $ (0.02 ) $ 0.33 $ 0.20 Common stock equivalents excluded from income per diluted share because of their anti-dilutive effect 949 3,589 1,184 850

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company is subject to income taxation in the United States and Canada. However, business is conducted primarily in the United States. The effective income tax rate differs from the statutory rate primarily due to state taxes, non-deductible stock-based compensation, tax credits, non-deductible charges, changes in uncertain tax positions, and other discrete items. The Company makes estimates and judgments about its future taxable income that are based on assumptions that are consistent with the Company’s plans and estimates. Should the actual amounts differ from these estimates, the amount of the valuation allowance could be materially affected. Income taxes are computed using the asset and liability method, under which deferred tax assets and liabilities are determined based on the difference between the financial statement and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized. Changes in valuation allowances are reflected as a component of provision for income taxes. The Company’s effective income tax rate was 42.9% and 201.5% for the three months ended June 30, 2016 and 2015 , respectively, and 43.6% and 47.4% for the six months ended June 30, 2016 and 2015 , respectively. The decrease is primarily due to an increase in pre-tax income and a revaluation of deferred taxes due to regulatory state tax law changes recorded in the three months ended June 30, 2015. The Company is subject to taxation under the laws of the U.S. and various state and local jurisdictions, as well as Canada. The Company is not subject to any material income tax examinations by U.S. federal or state tax authorities for tax years beginning prior to January 1, 2011. The Company paid Notices of Proposed Assessments outstanding as of December 31, 2014 related to the disallowance of employment tax credits totaling $10.5 million in connection with the IRS examination of Gevity HR, Inc. and its subsidiaries, which was acquired by TriNet in June 2009. On June 28, 2016, the Company filed a complaint in the United States District Court for the Middle District of Florida seeking a refund of the amounts previously paid to the IRS. The name of the case is TriNet Group Inc., v. United States of America. With regard to these employment tax credits, the Company believes it is more likely than not that the Company will prevail in having these amounts refunded from the tax authorities. Therefore, no reserve has been recognized related to this matter.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Lease Commitments The Company leases office facilities, including its headquarters and other facilities, and equipment under non-cancelable operating leases. The Company also leases certain software and furniture, fixtures, and equipment under capital leases. The lease agreements generally provide for rental payments on a graduated basis and for options to renew, which could increase future minimum lease payments if exercised. The Company recognizes rent expense on a straight-line basis over the lease period and accrues for rent expense incurred but not paid. Rent expense for the three months ended June 30, 2016 and 2015 was $4.1 million and $3.2 million , respectively. Rent expense for the six months ended June 30, 2016 and 2015 was $7.9 million and $6.3 million , respectively. Operating Covenants To meet various states’ licensing requirements and maintain accreditation by the Employer Services Assurance Corporation, the Company is subject to various minimum working capital and net worth requirements. As of June 30, 2016 , the Company believes it has fully complied in all respects with all applicable state regulations regarding minimum net worth, working capital and all other financial and legal requirements. Further, the Company has maintained positive working capital throughout the period covered by the financial statements. Contingencies On or about August 7, 2015, Howard Welgus, a purported stockholder of the Company, filed a putative securities class action lawsuit arising under the Securities Exchange Act of 1934 in the United States District Court for the Northern District of California. The case has not been certified as a class action, although it purports to be filed on behalf of purchasers of the Company’s common stock between May 5, 2014 and August 3, 2015, inclusive. The name of the case is Welgus v. TriNet Group, Inc. et al. No stockholder other than Mr. Welgus submitted a motion for appointment as lead plaintiff to represent the putative class, and, on December 3, 2015, the Court appointed Mr. Welgus as lead plaintiff. On February 1, 2016, Mr. Welgus filed an amended complaint. The defendants named in the case are the Company and certain of its officers and directors, as well as General Atlantic, LLC, a significant shareholder, and formerly majority shareholder, of the Company. Shortly before the scheduled date for the Company’s motion to dismiss the consolidated complaint, Mr. Welgus sought leave to further amend the consolidated complaint. The amended complaint was deemed filed by Mr. Welgus on April 1, 2016. The amended complaint expanded the class period to March 27, 2014 through February 29, 2016, and added as defendants the underwriters of the Company’s initial public offering and additional directors of the Company. The amended complaint generally alleges that the Company and other defendants caused damage to purchasers of the Company’s stock by misrepresenting and/or failing to disclose facts generally pertaining to alleged trends affecting health insurance and workers compensation claims. On June 20, 2016, the Company filed a motion to dismiss the amended complaint in its entirety. The Company believes that it has meritorious defenses against this action and intends to continue to defend itself vigorously against the allegations of Mr. Welgus. The Company is and, from time to time, has been and may in the future become involved in various litigation matters, legal proceedings and claims arising in the ordinary course of its business, including disputes with its clients or various class action, collective action, representative action and other proceedings arising from the nature of its co-employment relationship with its clients and WSEs in which the Company is named as a defendant. In addition, due to the nature of the Company’s co-employment relationship with its clients and WSEs, the Company could be subject to liability for federal and state law violations, even if the Company does not participate in such violations. While the Company’s agreements with its clients contain indemnification provisions related to the conduct of its clients, the Company may not be able to avail itself of such provisions in every instance. While the outcome of the matters described above cannot be predicted with certainty, management currently does not believe that any such claims or proceedings or the above mentioned securities class action will have a materially adverse effect on the Company’s consolidated financial position, results of operations or cash flows. However, the unfavorable resolution of any particular matter or the Company’s reassessment of its exposure for any of the above matters based on additional information obtained in the future could have a material impact on the Company’s consolidated financial position, results of operations or cash flows. In addition, regardless of the outcome, the above matters, individually and in the aggregate, could have an adverse impact on the Company because of diversion of management resources and other factors.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2016
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS The Company enters into sales and purchases agreements with various companies that have a relationship with the Company's executive officers or members of the Company's board of directors. The relationships are typically an equity investment by the executive officer or board member in the customer / vendor company or the Company's executive officer or board member is a member of the customer / vendor company's board of directors. The Company has entered into various software license agreements with a software service provider who has a Board member in common with TriNet. The Company paid the software service provider $0.2 million and $3.9 million during the six months ended June 30, 2016 and 2015 , for services it received, respectively. The Company has an outstanding liability of $5.8 million and a de minimis amount as of June 30, 2016 and 2015 , respectively. Additionally, the Company has entered into indemnity agreements with the directors and officers that provide, among other things, that the Company will indemnify such officer or director, under the circumstances and to the extent provided for therein, for expenses, damages, judgments, fines and settlements he or she may be required to pay in actions or proceedings to which he or she is or may be made a party by reason of his or her position as a director, officer or other agent of the Company, and otherwise to the fullest extent permitted under Delaware law and the Company’s Bylaws.

Subsequent Events Subsequent Ev

Subsequent Events Subsequent Events	6 Months Ended
	Jun. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS On July 29, 2016, the Company entered into an amendment to its first lien credit facility, which was amended and restated in July 2014, as described in Note 5. The amendment provides for a refinancing of the tranche B term loan in a leverage-neutral transaction: $135 million principal amount of tranche B term loans outstanding at June 30, 2016 and maturing July 2017 will be replaced with the same amount of tranche A-2 term loans maturing July 2019. The $342 million of tranche A term loans outstanding at June 30, 2016 , and the revolving credit facility were not modified. The Company will repay $36 million in principal for both tranche A and tranche A-2 term loans over the next twelve months according to the amended repayment schedule. Approximately $1 million in fees and expenses are expected to be incurred as a result of this transaction. The tranche A-2 term loans bear interest, at the Company’s option, at a rate equal to either the LIBOR rate, plus an applicable margin initially equal to 2.625% per annum, or the prime lending rate, plus an applicable margin equal to 1.625% per annum, with the applicable margin subject to change in the future based on the Company's leverage ratio. The interest rate applied to the tranche A term loan and the revolving credit facility are unaffected by the transaction. The amendment did not affect the existing customary representations and warranties and customary affirmative and negative covenants described in Note 5.

Description of Business and S18

Description of Business and Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Segment Information	Segment Information The Company operates in one reportable segment in accordance with Accounting Standard Codification (ASC) 280 – Segment Reporting, issued by the Financial Accounting Standards Board (FASB). All of the Company’s service revenues are generated from external clients. Less than 1% of revenue is generated outside of the United States of America (U.S.). Substantially all of the Company’s long-lived assets are located in the U.S.
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements and footnotes thereto of the Company and its wholly owned subsidiaries have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 . There have been no changes to the Company’s significant accounting policies described in such Annual Report that have had a material impact on its consolidated financial statements and related notes. All intercompany accounts and transactions have been eliminated in consolidation. The accompanying unaudited condensed consolidated balance sheets present the current assets and current liabilities directly related to the processing of human resources transactions as WSE-related assets and WSE-related liabilities, respectively. WSE-related assets consist of cash and investments restricted for current workers compensation claim payments, payroll funds collected, accounts receivable, unbilled service revenues, and refundable or prepaid amounts related to the Company-sponsored workers compensation and health plan programs. WSE-related liabilities consist of client prepayments, wages and payroll taxes accrued and payable, and liabilities related to the Company-sponsored workers compensation and health plan programs resulting from workers compensation case reserves, premium amounts due to providers for enrolled employees, and workers compensation and health reserves that are expected to be disbursed within the next 12 months. The unaudited interim financial statements have been prepared on the same basis as the annual financial statements and, in the opinion of management, reflect all adjustments, consisting only of normal recurring adjustments, necessary for fair presentation. Certain prior period amounts in the condensed consolidated statement of cash flows have been reclassified to conform to the current presentation. The results of the six months ended June 30, 2016 are not necessarily indicative of the results to be expected for the year ending December 31, 2016 .
Use of Estimates	Seasonality and Insurance Variability The Company's business is affected by cyclicality in business activity and WSE behavior. Historically, the Company has experienced its highest monthly addition of WSEs, as well as its highest monthly levels of client attrition, in the month of January, primarily because clients that change their payroll service providers tend to do so at the beginning of a calendar year. In addition, the Company experiences higher levels of client attrition in connection with renewals of the health insurance TriNet sponsors for its WSEs, in the event that such renewals result in higher costs to its clients. The Company has also historically experienced higher insurance claim volumes in the second and third quarters of the year than in the first and fourth quarters, as WSEs typically access their health care providers more often in the second and third quarters, which has negatively impacted the Company's insurance costs in these quarters. The Company has also experienced variability on a quarterly basis in the amount of our health and workers compensation insurance costs due to the number and severity of insurance claims being unpredictable. These historical trends may change, and other seasonal trends and variability may develop which could make it more difficult for the Company to manage its business. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect certain reported amounts and disclosures. These estimates include, but are not limited to, allowances for accounts receivable, workers compensation-related reserve estimates, health plan reserve estimates, recoverability of goodwill and other intangible assets, income taxes, stock-based compensation and other contingent liabilities. Such estimates are based on historical experience and on various other assumptions that management believes to be reasonable under the circumstances. Actual results could differ from those estimates.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In March 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-09— Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting , as part of the Simplification Initiative. The areas for simplification in this update involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. Some of the areas for simplification apply only to nonpublic entities. The amendment is effective for annual reporting periods, and interim periods within those years beginning after December 15, 2016. Early adoption is permitted. The Company is currently in the process of evaluating the impact of the adoption of this standard on its consolidated financial statements. In February 2016, the FASB issued ASU 2016-02— Leases . The amendment requires that lease arrangements longer than 12 months result in an entity recognizing an asset and liability. The amendment is effective for annual reporting periods, and interim periods within those years beginning after December 15, 2018. Early adoption is permitted. The Company is currently in the process of evaluating the impact of the adoption of this standard on its consolidated financial statements. In April 2015, the FASB issued ASU 2015-03— Simplifying the Presentation of Debt Issuance Costs, and, in August 2015, the FASB issued ASU 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements. These ASUs require debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the carrying amount of that debt, which is consistent with the presentation of debt discounts and premiums. The presentation and subsequent measurement of debt issuance costs associated with lines of credit, may be presented as an asset and amortized ratably over the term of the line of credit arrangement, regardless of whether there are outstanding borrowings on the arrangement. The recognition and measurement guidance for debt issuance costs are not affected by these ASUs. The Company adopted these ASUs as of March 31, 2016. The adoption of the ASUs resulted in a reclassification of unamortized debt issuance costs of $2.4 million from other current assets to current portion of notes payable and borrowings under capital leases and $3.4 million from other assets to notes payable and borrowings under capital leases, less current portion, as of December 31, 2015. Unamortized debt issuance costs related to the Company’s revolving credit facility will remain classified as an other asset in the accompanying consolidated balance sheets. The adoption of this guidance did not have any impact on the Company’s consolidated statements of operations, comprehensive income or cash flows. In May 2014, the FASB issued ASU 2014-09— Revenue from Contracts with Customers , which will replace most existing revenue recognition guidance under GAAP. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard provides a five-step analysis of transactions to determine when and how revenue is recognized. In July 2015, the FASB deferred the effective date to annual reporting periods, and interim periods within those years, beginning after December 15, 2017. Early adoption at the original effective date of December 15, 2016 is permitted. The amendments may be applied retrospectively or as a cumulative-effect adjustment as of the date of adoption. In March, April and May 2016, the FASB issued ASU 2016-08 Principal versus Agent Considerations (Reporting Revenue Gross versus Net), 2016-10 Identifying Performance Obligations and Licensing and 2016-12 Narrow-Scope Improvements and Practical Expedients , respectively, providing further clarification to be considered when implementing ASU 2014-09. The Company has not yet selected a method of adoption and is currently evaluating the effect that the amendments will have on the consolidated financial statements.

Worksite Employee-Related Ass19

Worksite Employee-Related Assets and Liabilities (Tables)	6 Months Ended
	Jun. 30, 2016
Other Industries [Abstract]
Schedule of Components of the Company's WSE-Related Assets and WSE-Related Liabilities	The following schedule presents the components of the Company’s WSE-related assets and WSE-related liabilities (in thousands): June 30, December 31, Worksite employee-related assets: Restricted cash $ 113,524 $ 92,917 Restricted investments 2,319 3,819 Payroll funds collected 583,465 859,322 Unbilled revenue, net of advance collections of $173,204 and $11,875 at June 30, 2016 and December 31, 2015, respectively 225,786 213,837 Accounts receivable, net of allowance for doubtful accounts of $528 and $1,158 at June 30, 2016 and December 31, 2015, respectively 6,121 5,060 Prepaid health plan expenses 9,053 8,088 Refundable workers compensation premiums 1,828 2,428 Prepaid workers compensation expenses 1,455 744 Other payroll assets 4,020 187,171 Total worksite employee-related assets $ 947,571 $ 1,373,386 Worksite employee-related liabilities: Unbilled wages accrual $ 365,154 $ 202,396 Payroll taxes payable 278,004 883,608 Health benefits payable 127,948 128,028 Customer prepayments 68,535 57,758 Workers compensation payable 69,330 66,174 Other payroll deductions 34,432 31,533 Total worksite employee-related liabilities $ 943,403 $ 1,369,497

Workers Compensation (Tables)

Workers Compensation (Tables)	6 Months Ended
	Jun. 30, 2016
Insurance [Abstract]
Summary of Activities in Liability for Unpaid Claims and Claims Adjustment Expenses	The following summarizes the activities in the balance sheet for unpaid claims and claims adjustment expenses within workers compensation assets and liabilities (in thousands): Six months ended Year ended December 31, 2015 Liability for unpaid claims and claims adjustment at beginning of period $ 190,102 $ 148,034 Incurred related to: Current year 51,346 89,137 Prior years 8,004 26,391 Total incurred 59,350 115,528 Paid related to: Current year (2,278 ) (16,376 ) Prior years (32,463 ) (57,084 ) Total paid (34,741 ) (73,460 ) Liability for unpaid claims and claims adjustment at end of period $ 214,711 $ 190,102 Assets held by third parties to cover claim liabilities (65,558 ) (58,522 ) Workers compensation premiums and other liabilities 17,623 9,455 Other workers compensation assets (8,554 ) (1,012 ) Total net workers compensation liabilities $ 158,222 $ 140,023 Location on Condensed Consolidated Balance Sheet: Workers compensation liabilities Current portion included in worksite employee-related liability $ 69,330 $ 66,174 Long term portion 130,523 105,481 Total workers compensation liabilities $ 199,853 $ 171,655 Workers compensation receivables Current portion included in worksite employee-related asset $ (1,828 ) $ (2,428 ) Long term portion (39,803 ) (29,204 ) Total workers compensation receivables $ (41,631 ) $ (31,632 ) Total net workers compensation liabilities $ 158,222 $ 140,023

Marketable Securities and Fai21

Marketable Securities and Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Summary of Available-for-Sale Marketable Securities	The available-for-sale marketable securities as of June 30, 2016 and December 31, 2015 consist of the following (in thousands): Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value June 30, 2016: U.S. treasuries $ 54,172 $ 281 $ — $ 54,453 Mutual funds 500 11 — 511 Total investments $ 54,672 $ 292 $ — $ 54,964 December 31, 2015: U.S. treasuries $ 64,226 $ 9 $ (144 ) $ 64,091 Mutual funds 500 4 — 504 Total investments $ 64,726 $ 13 $ (144 ) $ 64,595
Summary of Financial Assets Measured at Fair Value on Recurring Basis	The following table summarizes the Company’s financial assets measured at fair value on a recurring basis (in thousands): Total Fair Value Level I Level II Level III June 30, 2016: Certificates of deposit $ 2,319 $ 2,319 $ — $ — U.S. treasuries 54,453 54,453 — — Mutual funds 511 511 — — Total $ 57,283 $ 57,283 $ — $ — December 31, 2015: Certificates of deposit $ 2,319 $ 2,319 $ — $ — U.S. treasuries 64,091 64,091 — — Mutual funds 504 504 — — Total $ 66,914 $ 66,914 $ — $ —

Notes Payable and Borrowings 22

Notes Payable and Borrowings under Capital Leases (Tables)	6 Months Ended
	Jun. 30, 2016
Line of Credit Facility [Abstract]
Components of Company's Notes Payable and Borrowings under Capital Leases Balances	The following schedule summarizes the components of the Company’s notes payable and borrowings under capital leases balances (in thousands): June 30, December 31, Notes payable under credit facility $ 476,772 $ 499,563 Deferred loan costs (4,501 ) (5,781 ) Capital leases 134 153 Less: current portion of notes payable and borrowings under capital leases (25,006 ) (32,970 ) $ 447,399 $ 460,965

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2016
Equity [Abstract]
Summary of Equity Incentive Plan Activity	Equity incentive plan activity for the six months ended June 30, 2016 is summarized as follows: Equity Incentive Plan Activity Shares Available for Grant Balance at December 31, 2015 4,991,583 Authorized 3,166,714 Granted (2,016,707 ) Forfeited 330,554 Expired 65,626 Shares withheld for taxes and not issued 95,351 Balance at June 30, 2016 6,633,121
Summary of Stock Option Activity under the Company's Equity-Based Plans	The following table summarizes stock option activity under the Company’s equity-based plans for the six months ended June 30, 2016 : Stock Option Activity Number Weighted Weighted Aggregate Balance at December 31, 2015 4,446,149 $ 8.96 7.56 $ 52,108 Exercised (597,212 ) 3.72 Forfeited (180,413 ) 21.01 Expired (65,626 ) 28.59 Balance at June 30, 2016 3,602,898 $ 8.86 7.10 $ 46,628 Exercisable at June 30, 2016 2,169,882 $ 6.65 6.78 $ 31,929 Vested and expected to vest at June 30, 2016 3,524,634 $ 8.71 7.08 $ 46,010
Summary of Restricted Stock Unit Activity under the Company's Equity-Based Plans	The following table summarizes RSU activity under the Company’s equity-based plans for the six months ended June 30, 2016 : Restricted Stock Unit Activity Number of Units Weighted-Average Grant Date Fair Value Nonvested at December 31, 2015 956,687 $ 28.03 Granted 2,016,707 17.82 Vested (341,969 ) 25.25 Forfeited (126,267 ) 22.28 Nonvested at June 30, 2016 2,505,158 $ 20.48
Summary of Performance Based Restricted Stock Unit Activity	The following table summarizes PSU activity under the Company’s equity-based plans for the six months ended June 30, 2016 : Performance Based Restricted Stock Unit Activity Number of Units Weighted-Average Outstanding units at December 31, 2015 173,286 $ 33.51 Forfeited (23,874 ) $ 33.51 Outstanding units at June 30, 2016 149,412 $ 33.51
Summary of Significant Assumptions Used to Estimate Fair Value of Stock Options under Black-Scholes Model	The fair value of stock-based awards is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions: Stock Option Assumptions Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Expected term (in years) N/A 6.11 N/A 6.08 Expected volatility N/A 39 % N/A 39 % Risk-free interest rate N/A 1.96 % N/A 1.96 % Expected dividend yield N/A 0 % N/A 0 %
Summary of Significant Assumptions Used to Estimate Fair Value of Employee Stock Purchase Plans under Black-Scholes Model	ESPP Assumptions Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Expected term (in years) 0.50 0.50 0.50 0.50 Expected volatility 43-76% 33-43% 43-76% 33-43% Risk-free interest rate 0.33-0.38% 0.07-0.08% 0.33-0.38% 0.07-0.08% Expected dividend yield 0 % 0 % 0 % 0 %
Summary of Stock-based Compensation Expense	Stock-based compensation expense for stock-based awards made to the Company’s employees pursuant to the equity plans was as follows (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Cost of providing services $ 1,624 $ 1,214 $ 3,439 $ 1,972 Sales and marketing 1,643 1,309 3,628 2,226 General and administrative 2,644 1,842 5,617 3,863 Systems development and programming costs 597 518 1,221 742 $ 6,508 $ 4,883 $ 13,905 $ 8,803

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	The following table sets forth the computation of the Company’s basic and diluted net income (loss) per share attributable to common stock (in thousands, except per share data): Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Net income (loss) $ 12,282 $ (1,308 ) $ 23,859 $ 14,503 Weighted average shares of common stock outstanding 70,729 70,305 70,625 70,252 Basic EPS $ 0.17 $ (0.02 ) $ 0.34 $ 0.21 Net income (loss) $ 12,282 $ (1,308 ) $ 23,859 $ 14,503 Weighted average shares of common stock 70,729 70,305 70,625 70,252 Dilutive effect of stock options and restricted stock units 1,591 — 1,397 2,839 Weighted average shares of common stock outstanding 72,320 70,305 72,022 73,091 Diluted EPS $ 0.17 $ (0.02 ) $ 0.33 $ 0.20 Common stock equivalents excluded from income per diluted share because of their anti-dilutive effect 949 3,589 1,184 850

Description of Business and S25

Description of Business and Significant Accounting Policies - Additional Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)segment	Dec. 31, 2015USD ($)
Summary Of Significant Accounting Policy [Line Items]
Number of reportable segments as result of acquisitions | segment	1
Deferred finance costs, net	$ (4,501)	$ (5,781)
Maximum | Geographic concentration risk | Sales revenue, net
Summary Of Significant Accounting Policy [Line Items]
Concentration risk, less than 1%	1.00%
Accounting Standards Update 2015-03 | Notes Payable, Current
Summary Of Significant Accounting Policy [Line Items]
Deferred finance costs, net		(2,400)
Accounting Standards Update 2015-03 | Other Current Assets
Summary Of Significant Accounting Policy [Line Items]
Deferred finance costs, net		2,400
Accounting Standards Update 2015-03 | Other Assets
Summary Of Significant Accounting Policy [Line Items]
Deferred finance costs, net		3,400
Accounting Standards Update 2015-03 | Notes Payable
Summary Of Significant Accounting Policy [Line Items]
Deferred finance costs, net		$ (3,400)

Worksite Employee-Related Ass26

Worksite Employee-Related Assets and Liabilities - Schedule of Components of the Company's WSE-Related Assets and WSE-Related Liabilities (Details) $ in Thousands	Jun. 30, 2016USD ($)employee	Dec. 31, 2015USD ($)
Worksite employee-related assets:
Restricted cash	$ 14,558	$ 14,557
Workers' Compensation Receivable, Current	1,828	2,428
Total worksite employee-related assets	947,571	1,373,386
Worksite employee-related liabilities:
Health benefits payable	25,676	28,963
Workers compensation payable	69,330	66,174
Total worksite employee-related liabilities	$ 943,403	1,369,497
Number of employees | employee	2,500
WSE
Worksite employee-related assets:
Restricted cash	$ 113,524	92,917
Restricted investments	2,319	3,819
Payroll funds collected	583,465	859,322
Unbilled revenue, net of advance collections of $165,766 and $11,875 at March 31, 2016 and December 31, 2015, respectively	225,786	213,837
Accounts receivable, net of allowance for doubtful accounts of $577 and $1,158 at March 31, 2016 and December 31, 2015, respectively	6,121	5,060
Prepaid health plan expenses	9,053	8,088
Refundable workers compensation premiums	1,828	2,428
Prepaid workers compensation expenses	1,455	744
Other payroll assets	4,020	187,171
Total worksite employee-related assets	947,571	1,373,386
Advance collection	173,204	11,875
Allowance for doubtful accounts	528	1,158
Worksite employee-related liabilities:
Unbilled wages accrual	365,154	202,396
Payroll taxes payable	278,004	883,608
Health benefits payable	127,948	128,028
Customer prepayments	68,535	57,758
Workers compensation payable	69,330	66,174
Other payroll deductions	34,432	31,533
Total worksite employee-related liabilities	$ 943,403	1,369,497
Customer One
Worksite employee-related assets:
Payroll funds collected		$ 181,000

Workers Compensation - Summary

Workers Compensation - Summary of Activities in Liability for Unpaid Claims and Claims Adjustment Expenses (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Liability for Unpaid Claims and Claims Adjustment Expense
Liability for unpaid claims and claims adjustment at beginning of period	$ 190,102	$ 148,034
Incurred related to:
Current year	51,346	89,137
Prior years	8,004	26,391
Total incurred	59,350	115,528
Paid related to:
Current year	(2,278)	(16,376)
Prior years	(32,463)	(57,084)
Total paid	(34,741)	(73,460)
Liability for unpaid claims and claims adjustment at end of period	214,711	190,102
Assets held by third parties to cover claim liabilities	(65,558)	(58,522)
Workers compensation premiums and other liabilities	17,623	9,455
Other workers compensation assets	(8,554)	(1,012)
Total net workers compensation liabilities	158,222	140,023
Current portion included in worksite employee-related liability	69,330	66,174
Long term portion	130,523	105,481
Workers' Compensation Liability	199,853	171,655
Current portion included in worksite employee-related asset	(1,828)	(2,428)
Long term portion	(39,803)	(29,204)
Workers Compensation Receivable, Total	$ (41,631)	$ (31,632)

Workers Compensation - Addition

Workers Compensation - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Long-term restricted cash and investments	$ 112,807	$ 101,806
WSE
Liability for Claims and Claims Adjustment Expense [Line Items]
Restricted cash and restricted investment	$ 62,600	$ 49,800

Marketable Securities and Fai29

Marketable Securities and Fair Value Measurements - Additional Information (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Available-for-sale marketable securities	$ 55,000,000
Cash collateral	57,800,000
Assets, fair value	57,283,000		$ 66,914,000
Realized gains or losses	0	$ 0
Transfers between Level I and Level II assets	0		0
Level II
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, fair value	0		0
Carrying value of notes payable	476,800,000		499,600,000
Certificates of deposit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, fair value	2,319,000		2,319,000
Certificates of deposit | Level II
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, fair value	0		0
U.S. treasuries
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, fair value	$ 54,453,000		$ 64,091,000
Contractual maturities (less than)	4 years		4 years
U.S. treasuries | Level II
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, fair value	$ 0		$ 0

Notes Payable and Borrowings 30

Notes Payable and Borrowings under Capital Leases - Components of Company's Notes Payable and Borrowings under Capital Leases Balances (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Line of Credit Facility [Abstract]
Notes payable under credit facility	$ 476,772	$ 499,563
Deferred loan costs	(4,501)	(5,781)
Capital leases	134	153
Less: current portion of notes payable and borrowings under capital leases	(25,006)	(32,970)
Notes payable and borrowings under capital leases, net, less current portion	$ 447,399	$ 460,965

Marketable Securities and Fai31

Marketable Securities and Fair Value Measurements - Summary of Available-for-Sale Marketable Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 54,672	$ 64,726
Gross Unrealized Gains	292	13
Gross Unrealized Losses	0	(144)
Estimated Fair Value	54,964	64,595
U.S. treasuries
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	54,172	64,226
Gross Unrealized Gains	281	9
Gross Unrealized Losses	0	(144)
Estimated Fair Value	54,453	64,091
Mutual funds
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	500	500
Gross Unrealized Gains	11	4
Gross Unrealized Losses	0	0
Estimated Fair Value	$ 511	$ 504

Notes Payable and Borrowings 32

Notes Payable and Borrowings under Capital Leases - Additional Information (Details)	1 Months Ended	6 Months Ended
	Mar. 31, 2015USD ($)	Jun. 30, 2016USD ($)	Dec. 31, 2015USD ($)	Jul. 31, 2014USD ($)
Minimum
Debt Instrument [Line Items]
Debt instrument covenant interest coverage ratio		3.50
Maximum
Debt Instrument [Line Items]
Debt instrument covenant leverage ratio		4.25
First lien credit facility
Debt Instrument [Line Items]
Unused portion of the revolving credit facility		$ 59,500,000
First lien credit facility | Tranche A term loans
Debt Instrument [Line Items]
Line of credit facility				$ 375,000,000
Credit facility, maturity date		Jul. 9, 2019
Interest rate, increase (decrease)		0.25%
First lien credit facility | Tranche A term loans | Installment period 1
Debt Instrument [Line Items]
Frequency of payment		Quarterly
Beginning date of payment		Dec. 31, 2014
Ending date of payment		Dec. 31, 2016
Percentage of principal amount to be paid		5.00%
First lien credit facility | Tranche A term loans | Installment period 2
Debt Instrument [Line Items]
Frequency of payment		Quarterly
Beginning date of payment		Dec. 31, 2016
Ending date of payment		Dec. 31, 2018
Percentage of principal amount to be paid		7.50%
First lien credit facility | Tranche A term loans | Installment period 3
Debt Instrument [Line Items]
Frequency of payment		Quarterly
Beginning date of payment		Dec. 31, 2018
Ending date of payment		Jun. 30, 2019
Percentage of principal amount to be paid		10.00%
First lien credit facility | Tranche A term loans | LIBOR
Debt Instrument [Line Items]
Margin for term loans		2.75%
First lien credit facility | Tranche A term loans | Prime lending rate
Debt Instrument [Line Items]
Margin for term loans		1.75%
First lien credit facility | Tranche B term loans
Debt Instrument [Line Items]
Line of credit facility				200,000,000
Credit facility, maturity date		Jul. 9, 2017
Commitment fee percentage		0.50%
Percentage of prepayment in excess cash flow		50.00%
Frequency of payment		Quarterly
Percentage of principal amount to be paid		1.00%
Repayments of lines of credit	$ 25,000,000
Lien of credit amount amortized	$ 400,000
First lien credit facility | Tranche B term loans | Prepayment condition 1
Debt Instrument [Line Items]
Percentage of prepayment in excess cash flow		25.00%
First lien credit facility | Tranche B term loans | Prepayment condition 2
Debt Instrument [Line Items]
Percentage of prepayment in excess cash flow		0.00%
First lien credit facility | Tranche B term loans | Minimum
Debt Instrument [Line Items]
Commitment fee percentage		0.375%
First lien credit facility | Tranche B term loans | Minimum | Prepayment condition 1
Debt Instrument [Line Items]
Debt instrument covenant leverage ratio		3
First lien credit facility | Tranche B term loans | Maximum
Debt Instrument [Line Items]
Working capital less than $10 million		$ 10,000,000
First lien credit facility | Tranche B term loans | Maximum | Prepayment condition 1
Debt Instrument [Line Items]
Debt instrument covenant leverage ratio		3.75
First lien credit facility | Tranche B term loans | Maximum | Prepayment condition 2
Debt Instrument [Line Items]
Debt instrument covenant leverage ratio		3
First lien credit facility | Tranche B term loans | LIBOR
Debt Instrument [Line Items]
Margin for term loans		2.75%
First lien credit facility | Tranche B term loans | Prime lending rate
Debt Instrument [Line Items]
Margin for term loans		1.75%
First lien credit facility | Revolving credit facility
Debt Instrument [Line Items]
Line of credit facility		$ 75,000,000		$ 75,000,000
Credit facility, maturity date		Jul. 9, 2019
First lien credit facility | Letter of credit
Debt Instrument [Line Items]
Line of credit facility		$ 40,000,000
First lien credit facility | Swingline
Debt Instrument [Line Items]
Line of credit facility		$ 10,000,000
First lien credit facility | Tranche B-1 Term Loan
Debt Instrument [Line Items]
Prepayment of debt			$ 12,700,000

Marketable Securities and Fai33

Marketable Securities and Fair Value Measurements - Summary of Financial Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	$ 57,283	$ 66,914
Level I
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	57,283	66,914
Level II
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	0	0
Level III
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	0	0
Certificates of deposit
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	2,319	2,319
Certificates of deposit | Level I
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	2,319	2,319
Certificates of deposit | Level II
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	0	0
Certificates of deposit | Level III
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	0	0
U.S. treasuries
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	54,453	64,091
U.S. treasuries | Level I
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	54,453	64,091
U.S. treasuries | Level II
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	0	0
U.S. treasuries | Level III
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	0	0
Mutual funds
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	511	504
Mutual funds | Level I
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	511	504
Mutual funds | Level II
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	0	0
Mutual funds | Level III
Schedule Of Available For Sale Securities [Line Items]
Total Fair Value	$ 0	$ 0

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands

Jan. 01, 2016

Mar. 26, 2014

Mar. 31, 2015

Jun. 30, 2016

Jun. 30, 2015

Jun. 30, 2016

Jun. 30, 2015

Dec. 31, 2015

Dec. 31, 2014

Feb. 29, 2016

Nov. 30, 2014

May 31, 2014

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Plan description

Options issued to recipients other than nonemployee directors generally vest over four years with a one year cliff and monthly thereafter, and have a maximum contractual term of 10 years.

Weighted-average grant-date fair value of stock options granted

$ 11.63

$ 13.49

Total fair value of options vested

$ 1,600

$ 1,300

$ 3,700

$ 5,700

Total intrinsic value of options exercised

5,900

12,800

8,100

43,000

Cash received from options exercised

2,200

4,700

Unrecognized compensation expense of options, net of forfeitures

9,000

$ 9,000

Unrecognized compensation expense, expected to be recognized over a weighted-average period

1 year 9 months

Employee stock purchase plans, purchased shares

147,354

Additional stock repurchase program authorized amount

50,000

50,000

$ 50,000

$ 30,000

Stock repurchased during period, value

$ 16,400

$ 48,400

$ 15,000

Stock repurchased during period, shares

861,889

Stock repurchase remained available for future repurchase, value

65,200

$ 65,200

Stock-based compensation expense

6,508

$ 4,883

13,905

8,803

Income tax benefit recognized relating to stock-based compensation expense

4,800

2,800

Actual tax benefit realized from stock options exercised

$ 2,400

$ 13,900

Stock Option

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock options vesting percentage

25.00%

Term of stock options

4 years

Volatility rate

39.00%

39.00%

Stock Option | Vesting in one year for non-employee director

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock options vesting percentage

33.00%

Stock Option | Awards vesting a year from grant date for newly hired employees

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock options vesting percentage

25.00%

Restricted Stock Unit

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Unrecognized compensation expense of options, net of forfeitures

45,800

$ 45,800

Unrecognized compensation expense, expected to be recognized over a weighted-average period

3 years 1 month

Total grant date fair value of restricted stock units granted

2,900

$ 300

$ 35,900

$ 24,900

Total grant date fair value of restricted stock units

3,100

$ 1,000

$ 8,600

$ 1,100

Restricted Stock Unit | Awards vesting a year from grant date for newly hired employees

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock options vesting percentage

25.00%

Restricted Stock Unit | Awards vesting during each quarter after first year for newly hired employees

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock options vesting percentage

6.25%

Restricted Stock Unit | Remaining awards vesting during each quarter

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock options vesting percentage

6.25%

Performance-based restricted stock units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Unrecognized compensation expense, expected to be recognized over a weighted-average period

1 year 6 months

Unrecognized compensation expense of awards other than options, net of forfeitures

$ 600

$ 600

Performance-based restricted stock units | Share-based compensation award, tranche one

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Service period

12 months

Performance-based restricted stock units | Share-based compensation award, tranche two

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Service period

24 months

Performance-based restricted stock units | Share-based compensation award, tranche three

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Service period

36 months

Minimum | Stock Option

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Ownership, less than 10%

10.00%

Minimum | Performance-based restricted stock units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock options vesting percentage range

0.00%

Maximum

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock repurchase program, authorized amount

$ 15,000

Maximum | Stock Option

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Contractual term

5 years

Maximum | Performance-based restricted stock units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock options vesting percentage range

200.00%

Nonemployee directors | Stock Option

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Stock options granted percentage of fair market value

110.00%

Nonemployee directors | Maximum | Stock Option

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Contractual term

10 years

Executives | Performance-based restricted stock units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Term of stock options

3 years

Percentage of long term incentive compensation award grants

33.30%

2000 Plan

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Share-based compensation arrangement by share-based payment award, additional number of shares available for grant

0

0

2009 Plan

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Shares reserved for future issuance expressed as a percentage of outstanding shares

4.50%

Number of shares reserved for issuance

3,166,714

2009 Plan | Nonemployee directors

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Plan description

The 2009 Plan, as amended, provides that the number of shares reserved for issuance under the 2009 Plan will increase on January 1 of each year for a period of up to five years by 4.5% of the total number of shares of capital stock outstanding on December 31 of the preceding calendar year, which will begin on January 1, 2015 and continue through January 1, 2019.

Employee Stock Purchase Plan

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Number of shares reserved for issuance

1,100,000

Common stock for future issuance percentage increased

1.00%

Authorized shares reserved for issuance

703,714

Stock options granted percentage of fair market value on offering date

85.00%

Stock options granted percentage of fair market value on purchase date

85.00%

Employee stock purchase plan offering periods

Offering periods are six months in duration and will end on or about May 15 and November 15 of each year.

Share price

$ 15.64

$ 15.64

Employee stock purchase plans, purchased share values

$ 2,300

Employee Stock Purchase Plan | Minimum

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Employees contribution on earnings

1.00%

Employee Stock Purchase Plan | Maximum

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Common stock for future issuance number increase

1,800,000

Employees contribution on earnings

15.00%

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Equity Incentive Plan Activity (Details)	6 Months Ended
	Jun. 30, 2016shares
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]
Forfeited	180,413
Equity incentive plan activity under 2000 Plan and 2009 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]
Beginning Balance	4,991,583
Authorized	3,166,714
Granted	(2,016,707)
Forfeited	330,554
Expired	65,626
Shares withheld for taxes and not issued	95,351
Ending Balance	6,633,121

Stockholders' Equity - Summar36

Stockholders' Equity - Summary of Stock Option Activity under the Company's Equity-Based Plans (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares, Beginning Balance	4,446,149
Number of Shares, Exercised	(597,212)
Number of Shares, Forfeited	(180,413)
Number of Shares, Ending Balance	3,602,898	4,446,149
Number of Shares, Exercisable, Ending Balance	2,169,882
Number of Shares, Vested and expected to vest, Ending Balance	3,524,634
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted-Average Exercise Price, Beginning Balance	$ 8.96
Weighted-Average Exercise Price, Exercised	3.72
Weighted-Average Exercise Price, Forfeited	21.01
Weighted-Average Exercise Price, Ending Balance	8.86	$ 8.96
Weighted-Average Exercise Price, Exercisable, Ending Balance	6.65
Weighted-Average Exercise Price, Vested and expected to vest, Ending Balance	$ 8.71
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted-Average Remaining Contractual Term (in years)	7 years 1 month 7 days	7 years 6 months 22 days
Weighted-Average Remaining Contractual Term (in years), Exercisable	6 years 9 months 10 days
Weighted-Average Remaining Contractual Term (in years), Vested and expected to vest	7 years 1 month
Aggregate Intrinsic Value, Beginning Balance	$ 52,108
Aggregate Intrinsic Value, Ending Balance	46,628	$ 52,108
Aggregate Intrinsic Value, Exercisable, Ending Balance	31,929
Aggregate Intrinsic Value, Vested and expected to vest, Ending Balance	$ 46,010

Stockholders' Equity - Summar37

Stockholders' Equity - Summary of Restricted Unit Activity under the Company's Equity-Based Plans (Details)	6 Months Ended
	Jun. 30, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Units, Beginning Balance | shares	956,687
Number of Units, Granted | shares	2,016,707
Number of Units, Vested | shares	(341,969)
Number of Units, Forfeited | shares	(126,267)
Number of Units, Ending Balance | shares	2,505,158
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 28.03
Weighted Average Grant Date Fair Value, Granted | $ / shares	17.82
Weighted Average Grant Date Fair Value, Vested | $ / shares	25.25
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	22.28
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 20.48

Stockholders' Equity - Summar38

Stockholders' Equity - Summary of Performance Based Restricted Stock Unit Activity (Details)	6 Months Ended
	Jun. 30, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Units, Beginning Balance | shares	956,687
Number of Units, Granted | shares	2,016,707
Number of Units, Ending Balance | shares	2,505,158
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 28.03
Weighted Average Grant Date Fair Value, Granted | $ / shares	17.82
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 20.48
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | shares	(126,267)
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	$ 22.28
Performance-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Units, Beginning Balance | shares	173,286
Number of Units, Ending Balance | shares	149,412
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 33.51
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 33.51
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | shares	(23,874)
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	$ 33.51

Stockholders' Equity - Summar39

Stockholders' Equity - Summary of Fair Value of Stock-based Awards Estimated using Black-Scholes Option-Pricing Model (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term (in years)	6 months	6 months	6 months	6 months
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term (in years)		6 years 40 days		6 years 29 days
Expected volatility		39.00%		39.00%
Risk-free interest rate		1.96%		1.96%
Expected dividend yield		0.00%		0.00%
Minimum | ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	43.00%	33.00%	43.00%	33.00%
Risk-free interest rate	0.33%	0.07%	0.33%	0.07%
Maximum | ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	76.00%	43.00%	76.00%	43.00%
Risk-free interest rate	0.38%	0.08%	0.38%	0.08%

Stockholders' Equity - Summar40

Stockholders' Equity - 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
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 6,508	$ 4,883	$ 13,905	$ 8,803
Cost of providing services
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	1,624	1,214	3,439	1,972
Sales and marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	1,643	1,309	3,628	2,226
General and administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	2,644	1,842	5,617	3,863
Systems development and programming costs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 597	$ 518	$ 1,221	$ 742

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Net income (loss)	$ 12,282	$ (1,308)	$ 23,859	$ 14,503
Weighted average shares of common stock outstanding	70,728,934	70,305,185	70,625,000	70,251,980
Basic (in dollars per share)	$ 0.17	$ (0.02)	$ 0.34	$ 0.21
Dilutive effect of stock options and restricted stock units	1,591,000	0	1,397,000	2,839,000
Weighted average shares of common stock outstanding	72,319,992	70,305,185	72,022,065	73,090,962
Diluted (in dollars per share)	$ 0.17	$ (0.02)	$ 0.33	$ 0.20
Common stock equivalents excluded from income per diluted share because of their anti-dilutive effect	949,000	3,589,000	1,184,000	850,000

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Effective income tax rate	42.90%	201.50%	43.60%	47.40%
Employment tax credit					$ 10.5

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 4.1	$ 3.2	$ 7.9	$ 6.3

Related Party Transactions (Det

Related Party Transactions (Details) - Board of Directors Chairman - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Related Party Transaction [Line Items]
Payment to chairman of the board of directors	$ 0.2	$ 3.9
Outstanding liability	$ 5.8

Subsequent Events - Narrative (

Subsequent Events - Narrative (Details) - First lien credit facility - USD ($) $ in Millions	Jul. 29, 2016	Jun. 30, 2016
Subsequent Event
Subsequent Event [Line Items]
Debt issuance cost	$ 1
Tranche B term loans
Subsequent Event [Line Items]
Principal amount		$ 135
Tranche A term loans
Subsequent Event [Line Items]
Line of credit facility		$ 342
Tranche A-1 and Tranche A-2 Term Loans | Subsequent Event
Subsequent Event [Line Items]
Future repayment of long-term debt	$ 36
LIBOR | Tranche B term loans
Subsequent Event [Line Items]
Margin for term loans		2.75%
LIBOR | Tranche A term loans
Subsequent Event [Line Items]
Margin for term loans		2.75%
LIBOR | Tranche A-2 Term Loans | Subsequent Event
Subsequent Event [Line Items]
Margin for term loans	2.625%
Prime lending rate | Tranche B term loans
Subsequent Event [Line Items]
Margin for term loans		1.75%
Prime lending rate | Tranche A term loans
Subsequent Event [Line Items]
Margin for term loans		1.75%
Prime lending rate | Tranche A-2 Term Loans | Subsequent Event
Subsequent Event [Line Items]
Margin for term loans	1.625%