LogMeIn (LOGM) 10-Q 29 Apr 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 25, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Trading Symbol	LOGM
Entity Registrant Name	LogMeIn, Inc.
Entity Central Index Key	1,420,302
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		24,997,869

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 141,191	$ 123,143
Marketable securities	85,314	85,284
Accounts receivable (net of allowance for doubtful accounts of $274 and $272 as of December 31, 2015 and March 31, 2016, respectively)	15,139	16,011
Prepaid expenses and other current assets	15,968	11,997
Total current assets	257,612	236,435
Property and equipment, net	23,438	21,711
Restricted cash	2,618	2,467
Intangibles, net	68,902	71,590
Goodwill	117,545	117,545
Other assets	6,305	5,753
Deferred tax assets	214	198
Total assets	476,634	455,699
Current liabilities:
Accounts payable	10,911	10,327
Accrued liabilities	30,282	31,674
Deferred revenue, current portion	162,874	134,297
Total current liabilities	204,067	176,298
Long-term debt	52,500	60,000
Deferred revenue, net of current portion	2,386	2,692
Deferred tax liabilities	5,860	5,812
Other long-term liabilities	5,321	3,086
Total liabilities	$ 270,134	$ 247,888
Commitments and contingencies (Note 10)
Preferred stock, $0.01 par value - 5,000 shares authorized, 0 shares outstanding as of December 31, 2015 and March 31, 2016
Equity:
Common stock, $0.01 par value - 75,000 shares authorized as of December 31, 2015 and March 31, 2016; 27,540 and 27,706 shares issued as of December 31, 2015 and March 31, 2016, respectively; 25,130 and 25,132 outstanding as of December 31, 2015 and March 31, 2016, respectively	$ 277	$ 275
Additional paid-in capital	284,394	276,793
Retained earnings	20,001	21,074
Accumulated other comprehensive loss	(4,690)	(5,216)
Treasury stock, at cost - 2,410 and 2,574 shares as of December 31, 2015 and March 31, 2016, respectively	(93,482)	(85,115)
Total equity	206,500	207,811
Total liabilities and equity	$ 476,634	$ 455,699

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 272	$ 274
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	27,706,000	27,540,000
Common stock, shares outstanding	25,132,000	25,130,000
Treasury stock, shares	2,574,000	2,410,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Revenue	$ 79,734	$ 61,109
Cost of revenue	11,200	7,982
Gross profit	68,534	53,127
Operating expenses
Research and development	15,364	9,123
Sales and marketing	42,242	34,386
General and administrative	10,252	6,706
Legal settlements		3,600
Amortization of acquired intangibles	1,383	276
Total operating expenses	69,241	54,091
Loss from operations	(707)	(964)
Interest income	183	175
Interest expense	(392)	(37)
Other income (expense), net	(404)	1,261
Income (loss) before income taxes	(1,320)	435
(Provision for) benefit from income taxes	247	(63)
Net income (loss)	$ (1,073)	$ 372
Net income (loss) per share:
Basic	$ (0.04)	$ 0.02
Diluted	$ (0.04)	$ 0.01
Weighted average shares outstanding:
Basic	25,152	24,627
Diluted	25,152	25,557

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (1,073)	$ 372
Other comprehensive (loss) gain:
Net unrealized gains on marketable securities, (net of tax provision of $65 and $48 for the three months ended March 31, 2015 and 2016)	84	114
Net translation (losses) gains	442	(1,532)
Total other comprehensive (loss) gain	526	(1,418)
Comprehensive loss	$ (547)	$ (1,046)

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net unrealized (losses) gains on marketable securities, tax (benefit) provision	$ 48	$ 65

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net income (loss)	$ (1,073)	$ 372
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	5,444	2,877
Amortization of premium on investments	137	67
Change in fair value of contingent consideration liability	332	2
Amortization of debt issuance costs	70	23
Provision for bad debts	19	19
Stock-based compensation	8,592	4,853
Other, net	(12)	5
Changes in assets and liabilities:
Accounts receivable	1,053	5,031
Prepaid expenses and other current assets	(4,098)	(8,691)
Other assets	(85)	194
Accounts payable	1,712	3,843
Accrued liabilities	(2,498)	3,894
Deferred revenue	26,344	27,484
Other long-term liabilities	2,063	5
Net cash provided by operating activities	38,000	39,978
Cash flows from investing activities
Purchases of marketable securities	(13,784)	(19,996)
Proceeds from sale or disposal or maturity of marketable securities	13,750	20,000
Purchases of property and equipment	(4,376)	(3,901)
Intangible asset additions	(392)	(1,018)
Cash paid for acquisition	(61)
Increase in restricted cash and deposits	(126)	(50)
Net cash used in investing activities	(4,989)	(4,965)
Cash flows from financing activities
Repayments of borrowings under credit facility	(7,500)
Proceeds from issuance of common stock upon option exercises	1,125	8,850
Payments of withholding taxes in connection with restricted stock unit vesting	(2,115)	(1,642)
Payment of debt issuance costs	(265)	(676)
Payment of contingent consideration		(226)
Purchase of treasury stock	(8,367)	(5,064)
Net cash provided by (used in) financing activities	(17,122)	1,242
Effect of exchange rate changes on cash and cash equivalents	2,159	(5,055)
Net increase in cash and cash equivalents	18,048	31,200
Cash and cash equivalents, beginning of period	123,143	100,960
Cash and cash equivalents, end of period	141,191	132,160
Supplemental disclosure of cash flow information
Cash paid for interest	299	1
Cash paid (refunds received) for income taxes	(28)	1,015
Noncash investing and financing activities
Acquisition of property and equipment through capital leases	178
Purchases of property and equipment included in accounts payable and accrued liabilities	2,513	1,200
Fair value of contingent consideration in connection with acquisition included in accrued liabilities and other long term liabilities	2,360	25
Debt issuance costs included in accounts payable and accrued liabilities	$ 82	$ 224

Nature of the Business

Nature of the Business	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of the Business	1. Nature of the Business LogMeIn, Inc. (the “Company”) provides a portfolio of cloud-based service offerings which make it possible for people and businesses to simply and securely connect to their workplace, colleagues and customers. The Company’s product line includes AppGuru™, BoldChat ® ® ® ® ® ® ® ® ® ®

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Principles of Consolidation Unaudited Interim Condensed Consolidated Financial Statements Use of Estimates Marketable Securities Revenue Recognition — Revenue from the Company’s premium services is recognized on a daily basis over the subscription term as the services are delivered, provided that there is persuasive evidence of an arrangement, the fee is fixed or determinable and collectability is deemed reasonably assured. Subscription periods range from monthly to ten years, but are generally one year in duration. The Company’s software cannot be run on another entity’s hardware and customers do not have the right to take possession of the software and use it on their own or another entity’s hardware. The Company’s multi-element arrangements typically include subscription and professional services, which may include development services. The Company evaluates each element within the arrangement to determine if they can be accounted for as separate units of accounting. If the delivered item or items have value to the customer on a standalone basis, either because they are sold separately by any vendor or the customer could resell the delivered item or items on a standalone basis, the Company has determined that the deliverables within these arrangements qualify for treatment as separate units of accounting Accordingly, the Company recognizes revenue for each delivered item or items as a separate earnings process commencing when all of the significant performance obligations have been performed and when all of the revenue recognition criteria have been met. Professional services revenue recognized as a separate earnings process under multi-element arrangements has been immaterial to date. In cases where the Company has determined that the delivered items within its multi-element arrangements do not have value to the customer on a stand-alone basis, the arrangement is accounted for as a single unit of accounting and the related consideration is recognized ratably over the estimated customer life, commencing when all of the significant performance obligations have been delivered and when all of the revenue recognition criteria have been met. Revenue from multi-element arrangements accounted for as a single unit of accounting which do not have value to the customer has been immaterial to date. Concentrations of Credit Risk and Significant Customers For the three months ended March 31, 2015 and 2016, no customers accounted for more than 10% of revenue. As of December 31, 2015 and March 31, 2016, no customers accounted for more than 10% of accounts receivable. Goodwill Long-Lived Assets and Intangible Assets The Company reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets, including intangible assets, may not be recoverable. When such events occur, the Company compares the carrying amounts of the assets to their undiscounted expected future cash flows. If this comparison indicates that there is impairment, the amount of the impairment is calculated as the difference between the carrying value and fair value. Through March 31, 2016, the Company recorded no material impairments. Foreign Currency Translation — Stock-Based Compensation — Income Taxes The Company evaluates its uncertain tax positions based on a determination of whether and how much of a tax benefit taken by the Company in its tax filings is more likely than not to be realized. Potential interest and penalties associated with any uncertain tax positions are recorded as a component of income tax expense. As of December 31, 2015 and March 31, 2016, the Company has provided a liability for $0.9 million and $1.0 million, respectively, for uncertain tax positions. These uncertain tax positions would impact the Company’s effective tax rate if recognized. Segment Data The Company’s revenue by geography (based on customer address) is as follows (in thousands): Three Months Ended March 31, 2015 2016 Revenues: United States $ 42,629 $ 57,251 United Kingdom 4,885 6,186 International — all other 13,595 16,297 Total revenue $ 61,109 $ 79,734 The Company’s revenue by service cloud (product grouping) is as follows (in thousands): Three Months Ended March 31, 2015 2016 Revenues: Collaboration cloud $ 19,163 $ 26,748 Identity and Access Management cloud 20,197 28,452 Service and Support cloud 21,214 23,911 Other 535 623 Total revenue $ 61,109 $ 79,734 Guarantees and Indemnification Obligations — In the ordinary course of business, the Company enters into agreements with certain customers that contractually obligate the Company to provide indemnifications of varying scope and terms with respect to certain matters including, but not limited to, losses arising out of the breach of such agreements, from the services provided by the Company or claims alleging that the Company’s products infringe third-party patents, copyrights, or trademarks. The term of these indemnification obligations is generally perpetual. The maximum potential amount of future payments the Company could be required to make under these indemnification obligations is, in many cases, unlimited. Through March 31, 2016, the Company has not experienced any losses related to these indemnification obligations. Net Income (Loss) Per Share — The Company excluded the following options to purchase common shares and restricted stock units from the computation of diluted net income (loss) per share because they had an anti-dilutive impact or because the Company had a net loss in the period (in thousands): Three Months Ended March 31, 2015 2016 Options to purchase common shares 39 707 Restricted stock units — 1,548 Total options and restricted stock units 39 2,255 Basic and diluted net income per share was calculated as follows (in thousands, except per share data): Three Months Ended March 31, 2015 2016 Basic: Net income (loss) $ 372 $ (1,073 ) Weighted average common shares outstanding, basic 24,627 25,152 Net income (loss) per share, basic $ 0.02 $ (0.04 ) Diluted: Net income (loss) $ 372 $ (1,073 ) Weighted average common shares outstanding 24,627 25,152 Add: Common stock equivalents 930 — Weighted average common shares outstanding, diluted 25,557 25,152 Net income (loss) per share, diluted $ 0.01 $ (0.04 ) Recently Issued Accounting Pronouncements Revenue from Contracts with Customers On April 14, 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing On February 25, 2016, the FASB issued ASU 2016-02, Leases , On March 30, 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	3. Fair Value of Financial Instruments The carrying value of the Company’s financial instruments, including cash equivalents, restricted cash, accounts receivable and accounts payable, approximate their fair values due to their short maturities. The Company’s financial assets and liabilities are measured using inputs from the three levels of the fair value hierarchy. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels are as follows: • Level 1: Unadjusted quoted prices for identical assets or liabilities in active markets accessible by the Company at the measurement date. • Level 2: Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and inputs that are derived principally from or corroborated by observable market data by correlation or other means. • Level 3: Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The following table summarizes the basis used to measure certain of the Company’s financial assets and contingent consideration liability that are carried at fair value (in thousands): Fair Value Measurements at December 31, 2015 Level 1 Level 2 Level 3 Total Cash equivalents — money market funds $ 10,138 $ — $ — $ 10,138 Cash equivalents — bank deposits — 1 — 1 Short-term marketable securities: U.S. government agency securities 50,237 17,994 — 68,231 Corporate bond securities — 17,053 — 17,053 Contingent consideration liability — — 2,028 2,028 Fair Value Measurements at March 31, 2016 Level 1 Level 2 Level 3 Total Cash equivalents — money market funds $ 10,347 $ — $ — $ 10,347 Short-term marketable securities: U.S. government agency securities 60,262 8,009 — 68,271 Corporate bond securities — 17,043 — 17,043 Contingent consideration liability — — 2,360 2,360 Bank deposits, corporate bonds and certain U.S. government agency securities are classified within the second level of the fair value hierarchy as the fair value of those assets are determined based upon quoted prices for similar assets. The Company’s Level 3 liability consists of contingent consideration payable in connection with the September 5, 2014 acquisition of Zamurai Corporation and the October 15, 2015 acquisition of Marvasol, Inc. (d/b/a “LastPass”), as described in Note 4 below. Up to $2.5 million of the LastPass contingent consideration is based on the achievement of certain bookings goals, the fair value of which was estimated at $2.0 million as of December 31, 2015. The fair value of contingent consideration is estimated by applying a probability based model, which utilizes inputs that are unobservable in the market. Changes in the fair value of the contingent consideration liability will be reflected in acquisition-related costs in general and administrative expense until the liability is fully settled. As of March 31, 2016, the fair value of the LastPass contingent consideration liability was $2.3 million, which is included in accrued liabilities in the condensed consolidated balance sheet. A reconciliation of the beginning and ending Level 3 liability is as follows: Three Months Ended March 31, 2016 Balance beginning of period $ 2,028 Change in fair value of contingent consideration liability 332 Balance end of period $ 2,360

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2016
Business Combinations [Abstract]
Acquisitions	4. Acquisitions In the three months ended March 31, 2015 and 2016, acquisition-related costs were $1.5 million and $3.2 million, respectively, including $1.5 million and $2.9 million, respectively, of contingent retention-based bonus payment expense related to the Company’s 2014 and 2015 acquisitions, which are typically earned over the first two years following the acquisition and a $0.3 million charge recorded in the three months ended March 31, 2016 for the change in fair value of contingent consideration liability primarily related to the LastPass acquisition. LastPass On October 15, 2015, the Company acquired all of the outstanding equity interests in LastPass, a Fairfax, Virginia-based provider of an identity and password management service, for $107.6 million, net of cash acquired, plus contingent payments totaling up to $15.0 million which are expected to be paid over a two year period following the date of acquisition. The operating results of LastPass, which are included in the condensed consolidated financial statements beginning on the acquisition date, are comprised of $3.9 million of revenue and $5.5 million of expenses for the three months ended March 31, 2016, including amortization of acquired intangible assets of $1.6 million, contingent retention-based bonuses of $1.7 million and a contingent consideration fair value adjustment of $0.3 million. The following table summarizes the fair value (in thousands) of the assets acquired and liabilities assumed at the date of acquisition: Cash $ 2,518 Accounts receivable 639 Property and equipment 40 Deferred tax asset 3,050 Current and other assets 134 Intangible assets: Completed technology 29,400 Customer relationships 23,900 Trade name and trademark 3,000 Deferred revenue (6,600) Accrued expenses (66) Deferred tax liability (23,478) Goodwill 79,617 Total purchase price 112,154 Liability for contingent consideration (2,000) Total cash paid $ 110,154 The allocation of the purchase price related to income taxes is preliminary, including the Company finalizing the valuation of the acquired net operating loss carryforwards. The Company expects to complete this review in the second quarter of 2016. The LastPass stock purchase agreement obligates the Company to make additional contingent and retention-based bonus payments totaling up to $12.5 million to employees and former LastPass stockholders now employed by the Company on the first and second anniversaries of the acquisition date, contingent upon their continued employment and, for the first anniversary payment only, the achievement of certain bookings goals. The Company has concluded that the contingent payment arrangement is a compensation arrangement and is accruing the maximum payout ratably over the performance period, as it believes it is probable that the criteria will be met. The stock purchase agreement also includes non-retention based payments of up to $2.5 million to LastPass stockholders which are contingent on the achievement of certain bookings goals, which the Company has concluded is contingent consideration and is being accounted for as part of the purchase price. This contingent consideration liability was recorded at its fair value of $2.0 million at the acquisition date. The Company assesses the probability of the bookings goals being met and at what level each reporting period. As of March 31, 2016, the contingent consideration liability was $2.3 million. The goodwill recorded in connection with this transaction is primarily related to the expected synergies to be achieved related to the Company’s ability to leverage its IT management offerings, customer base, sales force and IT management business plan with LastPass’ product, technical expertise and customer base. All goodwill and intangible assets acquired are not deductible for income tax purposes. The Company recorded a long-term deferred tax asset of $3.1 million primarily related to net operating losses that were acquired as a part of the acquisition. The Company recorded a long-term deferred tax liability of $23.5 million primarily related to the amortization of intangible assets which cannot be deducted for tax purposes. The unaudited financial information in the table below summarizes the combined results of operations of the Company and LastPass, on a pro forma basis, as though the companies had been combined. The pro forma information for the period presented includes the effects of business combination accounting resulting from the acquisition as though the acquisition had been consummated as of the beginning of 2014, including amortization charges from acquired intangible assets; interest expense on borrowings and lower interest income in connection with the Company funding the acquisition with existing cash and investments and borrowings under its credit facility; the exclusion of acquisition-related costs of the Company and LastPass; the inclusion of expense related to contingent and retention-based bonuses assuming full achievement of the financial metric and retention requirements ($7.0 million in 2014 and $5.5 million in 2015), offset by the exclusion of LastPass historical bonuses paid to LastPass non-stockholder employees in 2015 in connection with the acquisition close of $6.1 million; and the related tax effects. The pro forma financial information is presented for comparative purposes only and is not necessarily indicative of the results of operations that actually would have been achieved if the acquisition had taken place at the beginning of 2014. Unaudited Pro Forma Financial Information Three Months Ended Pro Forma As Reported (in thousands, except Revenue $ 63,985 $ 61,109 Net income (loss) $ (619 ) $ 372 Earnings (loss) per share—Basic $ (0.03 ) $ 0.02 Earnings (loss) per share—Diluted $ (0.03 ) $ 0.01

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	5. Goodwill and Intangible Assets There was no change in the carrying amount of goodwill for the three months ended March 31, 2016. Intangible assets consist of the following (in thousands): December 31, 2015 March 31, 2016 Estimated Useful Life Gross Accumulated Net Gross Accumulated Net Identifiable intangible assets: Trade names and trademarks 1-11 years $ 3,806 $ 824 $ 2,982 $ 3,806 $ 857 $ 2,949 Customer relationships 5-8 years 29,129 4,089 25,040 29,129 5,385 23,744 Customer backlog 4 months 120 120 — 120 120 — Domain names 5 years 915 665 250 915 698 217 Software 4 years 299 299 — 299 299 — Completed technology 3-9 years 46,503 6,893 39,610 46,503 8,040 38,463 Technology and know-how 3 years 3,176 3,176 — 3,176 3,176 — Documented know-how 4 years 280 127 153 280 145 135 Non-Compete agreements 5 years 162 114 48 162 126 36 Internally developed software 3 years 6,754 3,247 3,507 7,147 3,789 3,358 $ 91,144 $ 19,554 $ 71,590 $ 91,537 $ 22,635 $ 68,902 The Company capitalized $1.0 million and $0.4 million during the three months ended March 31, 2015 and 2016, respectively, of costs related to internally developed computer software to be sold as a service incurred during the application development stage and is amortizing these costs over the expected lives of the related services. The Company is amortizing its intangible assets over the estimated lives noted above based upon the pattern in which their economic benefit will be realized, or if this pattern cannot be reliably determined, using the straight-line method over their estimated useful lives. The intangible assets have estimated useful lives which range from four months to eleven years. Amortization expense for intangible assets was $1.2 million and $3.1 million for the three months ended March 31, 2015 and 2016, respectively. Amortization relating to software, completed technology, technology and know-how, documented know-how and internally developed software is recorded within cost of revenues and the amortization of trade name and trademark, customer relationships, customer backlog, domain names and non-compete agreements is recorded within operating expenses. Future estimated amortization expense for intangible assets at March 31, 2016 is as follows (in thousands): Amortization Expense (Years Ending December 31) Amount 2016 (Nine months ending December 31) $ 8,697 2017 11,480 2018 11,035 2019 8,338 2020 7,619 Thereafter 21,733 Total $ 68,902

Accrued Liabilities

Accrued Liabilities	3 Months Ended
	Mar. 31, 2016
Payables and Accruals [Abstract]
Accrued Liabilities	6. Accrued Liabilities Accrued liabilities consisted of the following (in thousands): December 31, March 31, Marketing programs $ 4,323 $ 6,098 Payroll and payroll-related liabilities 18,239 13,016 Professional fees 1,944 2,635 Other accrued liabilities 7,168 8,533 Total accrued liabilities $ 31,674 $ 30,282

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	7. Income Taxes For the three months ended March 31, 2015 and 2016, the Company’s effective tax rate was 15%, or $0.1 million, on pre-tax earnings of $0.4 million and 19%, or $0.2 million, on a pre-tax loss of $1.3 million, respectively. The effective income tax rates for the three months ended March 31, 2015 and 2016 are lower than the U.S. federal statutory rate of 35% primarily due to profits earned in certain foreign jurisdictions, primarily the Company’s Irish subsidiaries, which are subject to significantly lower tax rates than the U.S. federal statutory rate. As of December 31, 2015 and March 31, 2016, the Company maintained a full valuation allowance related to the deferred tax assets of its Hungarian subsidiary. This entity has historical losses and the Company concluded it was not more likely than not that these deferred tax assets are realizable. The Company files income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. The Company’s income tax returns from 2010 are open to examination by federal, state, and/or foreign tax authorities. In the normal course of business, the Company and its subsidiaries are examined by various taxing authorities. The Company regularly assesses the likelihood of additional assessments by tax authorities and provides for these matters as appropriate. Audits by tax authorities typically involve examination of the deductibility of certain permanent items, limitations on net operating losses and tax credits. Although the Company believes its tax estimates are appropriate, the final determination of tax audits could result in material changes in its estimates. The Company has recorded a liability related to uncertain tax positions of $0.9 million and $1.0 million as of December 31, 2015 and March 31, 2016, respectively. The Company’s policy is to record estimated interest and penalties related to the underpayment of income taxes or unrecognized tax benefits as a component of its income tax provision. The Company recognized $2,000 and $4,000 of interest expense for the three months ended March 31, 2015 and 2016, respectively.

Common Stock and Equity_ Accumu

Common Stock and Equity/ Accumulated Other Comprehensive Loss	3 Months Ended
	Mar. 31, 2016
Common Stock and Equity/ Accumulated Other Comprehensive Loss	8. Common Stock and Equity The Company’s Board of Directors approved a $75 million share repurchase program on October 20, 2014. Share repurchases are made from time-to-time in the open market, in privately negotiated transactions or otherwise, in accordance with applicable securities laws and regulations. The timing and amount of any share repurchases are determined by the Company’s management based on its evaluation of market conditions, the trading price of the stock, regulatory requirements and other factors. The share repurchase program may be suspended, modified or discontinued at any time at the Company’s discretion without prior notice. For the three months ended March 31, 2015 and 2016, the Company repurchased 93,400 and 164,127 shares of its common stock at an average price of $54.22 and $50.98 per share for a total cost of $5.1 million and $8.4 million, respectively. At March 31, 2016, $48.0 million remained available under the Company’s share repurchase program.
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Common Stock and Equity/ Accumulated Other Comprehensive Loss	11. Accumulated Other Comprehensive Loss Accumulated other comprehensive loss consists of foreign currency translation adjustments and changes in unrealized losses and gains (net of tax) on marketable securities. For the purposes of comprehensive income disclosures, the Company does not record tax provisions or benefits for the net changes in the foreign currency translation adjustment, as the Company intends to reinvest permanently undistributed earnings of its foreign subsidiaries. Accumulated other comprehensive loss is reported as a component of stockholders’ equity and, as of December 31, 2015 and March 31, 2016, was comprised of cumulative translation adjustment losses of $5.2 million and $4.7 million, respectively, and unrealized losses (net of tax) on marketable securities of $27,000 and unrealized gains (net of tax) of $0.1 million respectively. There were no material reclassifications to earnings in the three months ended March 31, 2016.

Stock Incentive Plan

Stock Incentive Plan	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Incentive Plan	9. Stock Incentive Plan The Company’s 2009 Stock Incentive Plan (“2009 Plan”) is administered by the Board of Directors and Compensation Committee, which have the authority to designate participants and determine the number and type of awards to be granted and any other terms or conditions of the awards. The Company awards restricted stock units as the principal equity incentive award. Restricted stock units with time-based vesting conditions generally vest over a three-year period while restricted stock units with market-based vesting conditions generally vest over two or three-year periods. Until 2012, the Company generally granted stock options as the principal equity incentive award. Options generally vest over a four-year period and expire ten years from the date of grant. Certain stock-based awards provide for accelerated vesting if the Company experiences a change in control. As of March 31, 2016, there were 2.2 million shares available for grant under the 2009 Plan. The following table summarizes stock option activity (shares and intrinsic value in thousands): Number Weighted Weighted Aggregate Outstanding, January 1, 2016 768 $ 30.74 5.4 $ 27,942 Granted — — Exercised (60 ) 18.85 $ 1,946 Forfeited (1 ) 21.43 Outstanding, March 31, 2016 707 $ 31.76 5.3 $ 13,225 Exercisable at December 31, 2015 598 $ 30.54 5.0 $ 21,881 Exercisable at March 31, 2016 613 $ 32.46 5.0 $ 11,038 The aggregate intrinsic value was calculated based on the positive differences between the fair value of the Company’s common stock of $67.10 per share on December 31, 2015 and $50.46 per share on March 31, 2016 or at time of exercise and the exercise price of the options. During the three months ended March 31, 2016, the Company granted 285,694 restricted stock units, of which 248,194 have time-based vesting conditions and 37,500 have market-based vesting conditions. Restricted stock units with time-based vesting conditions are valued on the grant date using the grant date closing price of the underlying shares. The Company recognizes the expense on a straight-line basis over the requisite service period of the restricted stock unit, which is generally three years. In August 2013, May 2014, May 2015 and February 2016, the Company granted to certain key executives restricted stock unit awards with market-based vesting conditions, which are tied to the individual executive’s continued employment with the Company throughout the applicable performance period and the level of the Company’s achievement of a pre-established relative total shareholder return, or TSR, goal, as measured over an applicable performance period ranging from two to three years as compared to the TSR realized for that same period by the Russell 2000 Index (the “TSR Units”). The target number of shares underlying the February 2016 TSR Units is 37,500 shares, but the actual number of shares that may be earned under these TSR Units can range from 0% to 200% of the target number of shares awarded, or up to 75,000 shares, based on the Company’s level of achievement of its relative TSR goal for the applicable performance period. Compensation cost for TSR Units is recognized on a straight-line basis over the requisite service period and is recognized regardless of the actual number of awards that are earned based on the market condition. The assumptions used in the Monte Carlo simulation model include (but are not limited to) the following: February 2016 Grant Risk-free interest rate 0.89 % Volatility 40 % The following table summarizes restricted stock unit activity, including performance-based TSR Units (shares in thousands): Number of shares Underlying Restricted Stock Units Weighted Average Grant Date Fair Value Unvested as of January 1, 2016 1,438 $ 54.37 Restricted stock units granted 286 54.02 Restricted stock units vested (149 ) 40.65 Restricted stock units forfeited (27 ) 54.25 Unvested as of March 31, 2016 1,548 $ 55.62 The Company recognized stock based compensation expense within the accompanying condensed consolidated statements of operations as summarized in the following table (in thousands): Three Months Ended March 31, 2015 2016 Cost of revenue $ 354 $ 548 Research and development 1,328 1,498 Sales and marketing 2,030 3,827 General and administrative 1,141 2,719 $ 4,853 $ 8,592 As of March 31, 2016, there was $59.4 million of total unrecognized share-based compensation cost, net of estimated forfeitures, related to unvested stock awards which are expected to be recognized over a weighted average period of 2.1 years. The total unrecognized share-based compensation cost will be adjusted for future changes in estimated forfeitures.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	10. Commitments and Contingencies Operating Leases In December 2015, the Company amended its current lease for its Budapest, Hungary office space to provide for an expansion of leased space and to extend the term of the lease. The term of the amended lease will begin in May 2016 and will extend through May 2021. The aggregate amount of minimum lease payments to be made over the term of the lease is approximately $8.5 million (EUR 7.5 million). The lease agreement required a bank guarantee of $0.5 million (EUR 0.5 million). The bank guarantee is classified as restricted cash. In December 2014, the Company entered into a lease for new office space in Boston, Massachusetts which began in December 2015 and extends through June 2028. The aggregate amount of minimum lease payments to be made over the term of the lease is approximately $47.0 million. Pursuant to the terms of the lease, the landlord was responsible for making certain improvements to the leased space up to an agreed upon cost to the landlord. Any excess costs for these improvements will be billed by the landlord to the Company as additional rent. The Company estimates these excess costs to be $4.0 million, of which $3.4 million was paid as of March 31, 2016. The lease required a security deposit of $3.3 million in the form of an irrevocable, unsecured standby letter of credit. The lease includes an option to extend the original term of the lease for two successive five year periods. Rent expense under all leases was $1.9 million and $2.9 million for the three months ended March 31, 2015 and 2016, respectively. The Company records rent expense on a straight-line basis for leases with scheduled escalation clauses or free rent periods. The Company also enters into hosting services agreements with third-party data centers and internet service providers that are subject to annual renewal. The aggregate hosting fees incurred under these arrangements totaled $1.5 million and $2.1 million for the three months ended March 31, 2015 and 2016, respectively. Future minimum lease payments under non-cancelable operating leases including commitments associated with the Company’s hosting services arrangements are approximately as follows at March 31, 2016 (in thousands): Years Ending December 31 2016 (Nine months ending December 31) $ 11,852 2017 12,369 2018 11,105 2019 10,971 2020 10,757 Thereafter 45,406 Total minimum lease payments $ 102,460 Litigation On April 24, 2015, the Company entered into a Settlement Agreement with Sensory Technologies, LLC, or Sensory, whereby Sensory agreed to assign its JOIN ® ® The Company is from time to time subject to various other legal proceedings and claims, either asserted or unasserted, which arise in the ordinary course of business. While the outcome of these other claims cannot be predicted with certainty, management does not believe that the outcome of any of these other legal matters will have a material adverse effect on the Company’s condensed consolidated financial statements.

Credit Facility

Credit Facility	3 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Credit Facility	12. Credit Facility On February 18, 2015, the Company entered into a multi-currency credit agreement with a syndicate of banks, financial institutions and other lending entities (the “Credit Agreement”), pursuant to which a secured revolving credit facility of up to $100 million in the aggregate was made available to the Company. On January 22, 2016, the Company entered into the First Amendment to the Credit Agreement, pursuant to which the Company exercised its option to increase the credit facility to up to $150 million in the aggregate with the existing lenders and an additional lender and amended the Credit Agreement to provide the Company with an option to further increase the credit facility by an additional $50 million, which, if exercised, would provide the Company with access to a secured revolving credit facility of up to $200 million. The credit facility is available to the Company on a revolving basis during the period from February 18, 2015 through February 18, 2020. The Company may prepay the loans or terminate or reduce the commitments in whole or in part at any time, without premium or penalty, subject to certain conditions and costs in the case of Eurodollar rate loans. The Company repaid $7.5 million in March 2016, reducing its outstanding debt balance from $60.0 million to $52.5 million as of March 31, 2016. On April 20, 2016, the Company repaid an additional $7.5 million of the outstanding borrowings. The Company and its subsidiaries expect to use the credit facility for general corporate purposes, including, but not limited to, the potential acquisition of complementary products or businesses, share repurchases, as well as for working capital. Loans under the credit facility bear interest at variable rates which reset every 30 to 180 days depending on the rate and period selected by the Company as described below. As of March 31, 2016, the annual rate on the $52.5 million revolving loan was 1.9375% and was set to reset to 2.0% on April 22, 2016. The average interest rate on borrowings outstanding for the period ending March 31, 2016 was 1.9%. The quarterly commitment fee on the undrawn portion of the credit facility ranges from 0.20% to 0.30% per annum, based upon the Company’s total leverage ratio. As of March 31, 2016, the fair value of the credit facility approximated its book value. The Credit Agreement contains customary affirmative and negative covenants, including covenants that limit or restrict the Company and its subsidiaries’ ability to, among other things, incur indebtedness, grant liens, merge or consolidate, dispose of assets, change the nature of its business, make investments and acquisitions, pay dividends or make distributions, or enter into certain transactions with affiliates, in each case subject to customary and other exceptions for a credit facility of this size and type, each as further described in the Credit Agreement. The Credit Agreement also imposes limits on capital expenditures of the Company and its subsidiaries and requires the Company to maintain a maximum total leverage ratio (not greater than 2.75:1.00) and a minimum interest coverage ratio (not less than 3.00:1.00), each as further defined in the Credit Agreement. As of March 31, 2016, the total leverage ratio was 0.73:1.00, the minimum interest coverage ratio was 65:1.00 and the Company was in compliance with all financial and operating covenants of the Credit Agreement. Any failure to comply with the financial or operating covenants of the Credit Agreement would prevent the Company from being able to borrow additional funds, and would constitute a default, permitting the lenders to, among other things, accelerate the amounts outstanding, including all accrued interest and unpaid fees, under the credit facility and to terminate the credit facility. As of March 31, 2016, the Company had $1.1 million of origination costs recorded in other assets. The Company incurred $1.0 million of origination costs for the period ending December 31, 2015 in connection with entering into the Credit Agreement. The Company incurred an additional $0.3 million of origination costs in connection with the First Amendment to the Credit Agreement for the period ending March 31, 2016. As permitted by FASB issued ASU 2015-15, the Company has elected to present debt issuance costs as an asset and subsequently amortize the deferred debt issuance costs ratably over the term of the credit facility.

Summary of Significant Accoun19

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation
Unaudited Interim Condensed Consolidated Financial Statements	Unaudited Interim Condensed Consolidated Financial Statements
Use of Estimates	Use of Estimates
Marketable Securities	Marketable Securities
Revenue Recognition	Revenue Recognition — Revenue from the Company’s premium services is recognized on a daily basis over the subscription term as the services are delivered, provided that there is persuasive evidence of an arrangement, the fee is fixed or determinable and collectability is deemed reasonably assured. Subscription periods range from monthly to ten years, but are generally one year in duration. The Company’s software cannot be run on another entity’s hardware and customers do not have the right to take possession of the software and use it on their own or another entity’s hardware. The Company’s multi-element arrangements typically include subscription and professional services, which may include development services. The Company evaluates each element within the arrangement to determine if they can be accounted for as separate units of accounting. If the delivered item or items have value to the customer on a standalone basis, either because they are sold separately by any vendor or the customer could resell the delivered item or items on a standalone basis, the Company has determined that the deliverables within these arrangements qualify for treatment as separate units of accounting Accordingly, the Company recognizes revenue for each delivered item or items as a separate earnings process commencing when all of the significant performance obligations have been performed and when all of the revenue recognition criteria have been met. Professional services revenue recognized as a separate earnings process under multi-element arrangements has been immaterial to date. In cases where the Company has determined that the delivered items within its multi-element arrangements do not have value to the customer on a stand-alone basis, the arrangement is accounted for as a single unit of accounting and the related consideration is recognized ratably over the estimated customer life, commencing when all of the significant performance obligations have been delivered and when all of the revenue recognition criteria have been met. Revenue from multi-element arrangements accounted for as a single unit of accounting which do not have value to the customer has been immaterial to date.
Concentrations of Credit Risk and Significant Customers	Concentrations of Credit Risk and Significant Customers For the three months ended March 31, 2015 and 2016, no customers accounted for more than 10% of revenue. As of December 31, 2015 and March 31, 2016, no customers accounted for more than 10% of accounts receivable.
Goodwill	Goodwill
Long-Lived Assets and Intangible Assets	Long-Lived Assets and Intangible Assets The Company reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets, including intangible assets, may not be recoverable. When such events occur, the Company compares the carrying amounts of the assets to their undiscounted expected future cash flows. If this comparison indicates that there is impairment, the amount of the impairment is calculated as the difference between the carrying value and fair value. Through March 31, 2016, the Company recorded no material impairments.
Foreign Currency Translation	Foreign Currency Translation —
Stock-Based Compensation	Stock-Based Compensation —
Income Taxes	Income Taxes The Company evaluates its uncertain tax positions based on a determination of whether and how much of a tax benefit taken by the Company in its tax filings is more likely than not to be realized. Potential interest and penalties associated with any uncertain tax positions are recorded as a component of income tax expense. As of December 31, 2015 and March 31, 2016, the Company has provided a liability for $0.9 million and $1.0 million, respectively, for uncertain tax positions. These uncertain tax positions would impact the Company’s effective tax rate if recognized.
Segment Data	Segment Data The Company’s revenue by geography (based on customer address) is as follows (in thousands): Three Months Ended March 31, 2015 2016 Revenues: United States $ 42,629 $ 57,251 United Kingdom 4,885 6,186 International — all other 13,595 16,297 Total revenue $ 61,109 $ 79,734 The Company’s revenue by service cloud (product grouping) is as follows (in thousands): Three Months Ended March 31, 2015 2016 Revenues: Collaboration cloud $ 19,163 $ 26,748 Identity and Access Management cloud 20,197 28,452 Service and Support cloud 21,214 23,911 Other 535 623 Total revenue $ 61,109 $ 79,734
Guarantees and Indemnification Obligations	Guarantees and Indemnification Obligations — In the ordinary course of business, the Company enters into agreements with certain customers that contractually obligate the Company to provide indemnifications of varying scope and terms with respect to certain matters including, but not limited to, losses arising out of the breach of such agreements, from the services provided by the Company or claims alleging that the Company’s products infringe third-party patents, copyrights, or trademarks. The term of these indemnification obligations is generally perpetual. The maximum potential amount of future payments the Company could be required to make under these indemnification obligations is, in many cases, unlimited. Through March 31, 2016, the Company has not experienced any losses related to these indemnification obligations.
Net Income (Loss) Per Share	Net Income (Loss) Per Share — The Company excluded the following options to purchase common shares and restricted stock units from the computation of diluted net income (loss) per share because they had an anti-dilutive impact or because the Company had a net loss in the period (in thousands): Three Months Ended March 31, 2015 2016 Options to purchase common shares 39 707 Restricted stock units — 1,548 Total options and restricted stock units 39 2,255 Basic and diluted net income per share was calculated as follows (in thousands, except per share data): Three Months Ended March 31, 2015 2016 Basic: Net income (loss) $ 372 $ (1,073 ) Weighted average common shares outstanding, basic 24,627 25,152 Net income (loss) per share, basic $ 0.02 $ (0.04 ) Diluted: Net income (loss) $ 372 $ (1,073 ) Weighted average common shares outstanding 24,627 25,152 Add: Common stock equivalents 930 — Weighted average common shares outstanding, diluted 25,557 25,152 Net income (loss) per share, diluted $ 0.01 $ (0.04 )
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Revenue from Contracts with Customers On April 14, 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing On February 25, 2016, the FASB issued ASU 2016-02, Leases , On March 30, 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting

Summary of Significant Accoun20

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Schedule of Revenue by Geographic Areas	The Company’s revenue by geography (based on customer address) is as follows (in thousands): Three Months Ended March 31, 2015 2016 Revenues: United States $ 42,629 $ 57,251 United Kingdom 4,885 6,186 International — all other 13,595 16,297 Total revenue $ 61,109 $ 79,734
Schedule of Revenue by Service Cloud (Product Grouping)	The Company’s revenue by service cloud (product grouping) is as follows (in thousands): Three Months Ended March 31, 2015 2016 Revenues: Collaboration cloud $ 19,163 $ 26,748 Identity and Access Management cloud 20,197 28,452 Service and Support cloud 21,214 23,911 Other 535 623 Total revenue $ 61,109 $ 79,734
Schedule of Options to Purchase Common Shares and Restricted Stock Units	The Company excluded the following options to purchase common shares and restricted stock units from the computation of diluted net income (loss) per share because they had an anti-dilutive impact or because the Company had a net loss in the period (in thousands): Three Months Ended March 31, 2015 2016 Options to purchase common shares 39 707 Restricted stock units — 1,548 Total options and restricted stock units 39 2,255
Reconciliation of Basic and Diluted Net Income per Share	Basic and diluted net income per share was calculated as follows (in thousands, except per share data): Three Months Ended March 31, 2015 2016 Basic: Net income (loss) $ 372 $ (1,073 ) Weighted average common shares outstanding, basic 24,627 25,152 Net income (loss) per share, basic $ 0.02 $ (0.04 ) Diluted: Net income (loss) $ 372 $ (1,073 ) Weighted average common shares outstanding 24,627 25,152 Add: Common stock equivalents 930 — Weighted average common shares outstanding, diluted 25,557 25,152 Net income (loss) per share, diluted $ 0.01 $ (0.04 )

Fair Value of Financial Instr21

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Summary of Company's Financial Assets and Contingent Consideration Liability Carried at Fair Value	The following table summarizes the basis used to measure certain of the Company’s financial assets and contingent consideration liability that are carried at fair value (in thousands): Fair Value Measurements at December 31, 2015 Level 1 Level 2 Level 3 Total Cash equivalents — money market funds $ 10,138 $ — $ — $ 10,138 Cash equivalents — bank deposits — 1 — 1 Short-term marketable securities: U.S. government agency securities 50,237 17,994 — 68,231 Corporate bond securities — 17,053 — 17,053 Contingent consideration liability — — 2,028 2,028 Fair Value Measurements at March 31, 2016 Level 1 Level 2 Level 3 Total Cash equivalents — money market funds $ 10,347 $ — $ — $ 10,347 Short-term marketable securities: U.S. government agency securities 60,262 8,009 — 68,271 Corporate bond securities — 17,043 — 17,043 Contingent consideration liability — — 2,360 2,360
Reconciliation of Beginning and Ending Level 3 Liability	A reconciliation of the beginning and ending Level 3 liability is as follows: Three Months Ended March 31, 2016 Balance beginning of period $ 2,028 Change in fair value of contingent consideration liability 332 Balance end of period $ 2,360

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2016
Summary of Unaudited Pro Forma Information	Unaudited Pro Forma Financial Information Three Months Ended Pro Forma As Reported (in thousands, except Revenue $ 63,985 $ 61,109 Net income (loss) $ (619 ) $ 372 Earnings (loss) per share—Basic $ (0.03 ) $ 0.02 Earnings (loss) per share—Diluted $ (0.03 ) $ 0.01
LastPass [Member]
Purchase Price Allocation	The following table summarizes the fair value (in thousands) of the assets acquired and liabilities assumed at the date of acquisition: Cash $ 2,518 Accounts receivable 639 Property and equipment 40 Deferred tax asset 3,050 Current and other assets 134 Intangible assets: Completed technology 29,400 Customer relationships 23,900 Trade name and trademark 3,000 Deferred revenue (6,600) Accrued expenses (66) Deferred tax liability (23,478) Goodwill 79,617 Total purchase price 112,154 Liability for contingent consideration (2,000) Total cash paid $ 110,154

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible assets consist of the following (in thousands): December 31, 2015 March 31, 2016 Estimated Useful Life Gross Accumulated Net Gross Accumulated Net Identifiable intangible assets: Trade names and trademarks 1-11 years $ 3,806 $ 824 $ 2,982 $ 3,806 $ 857 $ 2,949 Customer relationships 5-8 years 29,129 4,089 25,040 29,129 5,385 23,744 Customer backlog 4 months 120 120 — 120 120 — Domain names 5 years 915 665 250 915 698 217 Software 4 years 299 299 — 299 299 — Completed technology 3-9 years 46,503 6,893 39,610 46,503 8,040 38,463 Technology and know-how 3 years 3,176 3,176 — 3,176 3,176 — Documented know-how 4 years 280 127 153 280 145 135 Non-Compete agreements 5 years 162 114 48 162 126 36 Internally developed software 3 years 6,754 3,247 3,507 7,147 3,789 3,358 $ 91,144 $ 19,554 $ 71,590 $ 91,537 $ 22,635 $ 68,902
Future Estimated Amortization Expense	Future estimated amortization expense for intangible assets at March 31, 2016 is as follows (in thousands): Amortization Expense (Years Ending December 31) Amount 2016 (Nine months ending December 31) $ 8,697 2017 11,480 2018 11,035 2019 8,338 2020 7,619 Thereafter 21,733 Total $ 68,902

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	3 Months Ended
	Mar. 31, 2016
Payables and Accruals [Abstract]
Summary of Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): December 31, March 31, Marketing programs $ 4,323 $ 6,098 Payroll and payroll-related liabilities 18,239 13,016 Professional fees 1,944 2,635 Other accrued liabilities 7,168 8,533 Total accrued liabilities $ 31,674 $ 30,282

Stock Incentive Plan (Tables)

Stock Incentive Plan (Tables)	3 Months Ended
	Mar. 31, 2016
Summary of Stock Option Activity	The following table summarizes stock option activity (shares and intrinsic value in thousands): Number Weighted Weighted Aggregate Outstanding, January 1, 2016 768 $ 30.74 5.4 $ 27,942 Granted — — Exercised (60 ) 18.85 $ 1,946 Forfeited (1 ) 21.43 Outstanding, March 31, 2016 707 $ 31.76 5.3 $ 13,225 Exercisable at December 31, 2015 598 $ 30.54 5.0 $ 21,881 Exercisable at March 31, 2016 613 $ 32.46 5.0 $ 11,038
Schedule of Restricted Stock Unit Activity Including Performance-based TSR Units	The following table summarizes restricted stock unit activity, including performance-based TSR Units (shares in thousands): Number of shares Underlying Restricted Stock Units Weighted Average Grant Date Fair Value Unvested as of January 1, 2016 1,438 $ 54.37 Restricted stock units granted 286 54.02 Restricted stock units vested (149 ) 40.65 Restricted stock units forfeited (27 ) 54.25 Unvested as of March 31, 2016 1,548 $ 55.62
Schedule of Stock Based Compensation Allocated to Expense	The Company recognized stock based compensation expense within the accompanying condensed consolidated statements of operations as summarized in the following table (in thousands): Three Months Ended March 31, 2015 2016 Cost of revenue $ 354 $ 548 Research and development 1,328 1,498 Sales and marketing 2,030 3,827 General and administrative 1,141 2,719 $ 4,853 $ 8,592
TSR Units [Member] | Monte Carlo Simulation Model [Member]
Summary of Valuation Assumptions	The assumptions used in the Monte Carlo simulation model include (but are not limited to) the following: February 2016 Grant Risk-free interest rate 0.89 % Volatility 40 %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Schedule of Minimum Future Lease Payments Receivable	Future minimum lease payments under non-cancelable operating leases including commitments associated with the Company’s hosting services arrangements are approximately as follows at March 31, 2016 (in thousands): Years Ending December 31 2016 (Nine months ending December 31) $ 11,852 2017 12,369 2018 11,105 2019 10,971 2020 10,757 Thereafter 45,406 Total minimum lease payments $ 102,460

Summary of Significant Accoun27

Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		12 Months Ended
	Mar. 31, 2016USD ($)CustomerSegment	Mar. 31, 2015USD ($)Customer	Mar. 31, 2016USD ($)Customer	Dec. 31, 2015USD ($)Customer
Organization And Summary Of Significant Accounting Policies [Line Items]
Marketable securities, maturities remaining	2 years
Marketable securities, amortized cost	$ 85,200,000		$ 85,200,000	$ 85,300,000
Marketable securities	85,314,000		85,314,000	85,284,000
Marketable securities, unrealized gains	99,000		99,000	10,000
Marketable securities, unrealized losses	$ 9,000		9,000	53,000
Number of reporting unit | Segment	1
Number of operating segments | Segment	1
Goodwill impairments	$ 0
Long-lived asset impairment			0
Uncertain tax positions	1,000,000		1,000,000	$ 900,000
Indemnification Agreement [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Losses related to indemnification obligations	$ 0		$ 0
Accounts Receivable [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Accounts receivable, number of major customers | Customer	0	0	0	0
Sales Revenue, Net [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Revenue, number of customers accounted | Customer	0	0		0
Other Income (Expense),Net [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Foreign currency gains		$ 1,300,000
Foreign currency losses	$ 400,000
Minimum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Revenue subscription period	1 month
Maximum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Revenue subscription period	10 years
Intangible assets, estimated useful life	11 years
Weighted Average [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Revenue subscription period	1 year
Credit Concentration Risk [Member] | Accounts Receivable [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Percentage outstanding for major customer				10.00%
Credit Concentration Risk [Member] | Minimum [Member] | Accounts Receivable [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Percentage outstanding for major customer	10.00%	10.00%
Customer Concentration Risk [Member] | Minimum [Member] | Sales Revenue, Net [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Percentage outstanding for major customer	10.00%	10.00%		10.00%

Summary of Significant Accoun28

Summary of Significant Accounting Policies - Schedule of Revenue and Long-lived Assets by Geographic Areas (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 79,734	$ 61,109
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	57,251	42,629
International - All Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	16,297	13,595
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 6,186	$ 4,885

Summary of Significant Accoun29

Summary of Significant Accounting Policies - Schedule of Revenue by Service Cloud (Product Grouping) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue from External Customer [Line Items]
Revenues	$ 79,734	$ 61,109
Collaboration Cloud [Member]
Revenue from External Customer [Line Items]
Revenues	26,748	19,163
Identity and Access Management Cloud [Member]
Revenue from External Customer [Line Items]
Revenues	28,452	20,197
Service and Support Cloud [Member]
Revenue from External Customer [Line Items]
Revenues	23,911	21,214
Other [Member]
Revenue from External Customer [Line Items]
Revenues	$ 623	$ 535

Summary of Significant Accoun30

Summary of Significant Accounting Policies - Schedule of Options to Purchase Common Shares and Restricted Stock Units (Detail) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options and restricted stock units	2,255	39
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options and restricted stock units	707	39
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options and restricted stock units	1,548

Summary of Significant Accoun31

Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Net Income per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Basic:
Net income (loss)	$ (1,073)	$ 372
Weighted average common shares outstanding, basic	25,152	24,627
Net income (loss) per share, basic	$ (0.04)	$ 0.02
Diluted:
Net income (loss)	$ (1,073)	$ 372
Weighted average common shares outstanding	25,152	24,627
Add: Common stock equivalents		930
Weighted average common shares outstanding, diluted	25,152	25,557
Net income (loss) per share, diluted	$ (0.04)	$ 0.01

Fair Value of Financial Instr32

Fair Value of Financial Instruments - Summary of Company's Financial Assets and Contingent Consideration Liability Carried at Fair Value (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	$ 85,314	$ 85,284
Contingent consideration liability	2,360	2,028
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	2,360	2,028
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	10,347	10,138
Bank Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		1
U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	68,271	68,231
Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	17,043	17,053
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	2,360	2,028
Recurring [Member] | Money Market Funds [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	10,347	10,138
Recurring [Member] | Bank Deposits [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		1
Recurring [Member] | U.S. Government Agency Securities [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	60,262	50,237
Recurring [Member] | U.S. Government Agency Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	8,009	17,994
Recurring [Member] | Corporate Bond Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	$ 17,043	$ 17,053

Fair Value of Financial Instr33

Fair Value of Financial Instruments - Additional Information (Detail) - USD ($)	Mar. 31, 2016	Dec. 31, 2015	Oct. 15, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 2,360,000	$ 2,028,000
LastPass [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range of contingent payments, Maximum	2,500,000
Contingent consideration liability	$ 2,300,000	$ 2,000,000	$ 15,000,000

Fair Value of Financial Instr34

Fair Value of Financial Instruments - Reconciliation of Beginning and Ending Level 3 Liability (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance beginning of period	$ 2,028
Change in fair value of contingent consideration liability	332
Balance end of period	2,360
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance beginning of period	2,028
Balance end of period	$ 2,360

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($)	Oct. 15, 2015	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Acquisition-related costs		$ 3,200,000	$ 1,500,000
Acquisition related retention-based bonus payment expense		2,900,000	1,500,000
Change in fair value of contingent consideration liability		332,000	2,000
Cash payable in contingent consideration		2,360,000		$ 2,028,000
Operating revenues		79,734,000	61,109,000
Operating expenses		69,241,000	54,091,000
Amortization of acquired intangibles		1,383,000	276,000
LastPass [Member]
Business Acquisition [Line Items]
Change in fair value of contingent consideration liability		300,000
Cash paid for acquisition, net of cash acquired	$ 107,600,000
Cash payable in contingent consideration	$ 15,000,000	2,300,000		2,000,000
Maturity period for contingent payment	2 years
Operating revenues		3,900,000	$ 61,109,000
Operating expenses		5,500,000
Amortization of acquired intangibles		1,600,000
Range of contingent payments, Maximum		2,500,000
Deferred tax asset	$ 3,050,000
Deferred tax liability	23,478,000
Proforma contingent consideration and retention requirement payments				5,500,000	$ 7,000,000
Payment to non-stockholder employees				$ 6,100,000
LastPass [Member] | Retention Bonus [Member]
Business Acquisition [Line Items]
Cash payable in contingent consideration		1,700,000
Range of contingent payments, Maximum		12,500,000
LastPass [Member] | Non Retention Bonus [Member]
Business Acquisition [Line Items]
Range of contingent payments, Maximum		$ 2,500,000
LastPass [Member] | Accrued Liabilities [Member]
Business Acquisition [Line Items]
Cash payable in contingent consideration	$ 2,000,000

Acquisitions - Purchase Price A

Acquisitions - Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Oct. 15, 2015	Mar. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Goodwill		$ 117,545	$ 117,545
Total cash paid		$ 61
LastPass [Member]
Business Acquisition [Line Items]
Cash	$ 2,518
Accounts receivable	639
Property and equipment	40
Deferred tax asset	3,050
Current and other assets	134
Deferred revenue	(6,600)
Accrued expenses	(66)
Deferred tax liability	(23,478)
Goodwill	79,617
Total purchase price	112,154
Liability for contingent consideration	(2,000)
Total cash paid	110,154
LastPass [Member] | Completed Technology [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets	29,400
LastPass [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets	23,900
LastPass [Member] | Trade Name and Trademark [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets	$ 3,000

Acquisitions - Summary of Unaud

Acquisitions - Summary of Unaudited Pro Forma Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Business Acquisition [Line Items]
Revenue	$ 79,734	$ 61,109
Net income (loss)	$ (1,073)	$ 372
Earnings (loss) per share-Basic	$ (0.04)	$ 0.02
Earnings (loss) per share-Diluted	$ (0.04)	$ 0.01
LastPass [Member]
Business Acquisition [Line Items]
Revenue		$ 63,985
Net income (loss)		$ (619)
Earnings (loss) per share-Basic		$ (0.03)
Earnings (loss) per share-Diluted		$ (0.03)
Revenue	$ 3,900	$ 61,109
Net income (loss)		$ 372
Earnings (loss) per share-Basic		$ 0.02
Earnings (loss) per share-Diluted		$ 0.01

Goodwill and Intangible Asset38

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Changes in carrying amount of goodwill	$ 0
Internally developed software	400,000	$ 1,000,000
Total amortization of intangible assets	$ 3,100,000	$ 1,200,000
Minimum [Member] | LastPass [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	4 months
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	11 years
Maximum [Member] | LastPass [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	11 years

Goodwill and Intangible Asset39

Goodwill and Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 91,537	$ 91,144
Accumulated Amortization	22,635	19,554
Net Carrying Amount	68,902	71,590
Trade Name and Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,806	3,806
Accumulated Amortization	857	824
Net Carrying Amount	2,949	2,982
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	29,129	29,129
Accumulated Amortization	5,385	4,089
Net Carrying Amount	23,744	25,040
Customer Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	120	120
Accumulated Amortization	120	120
Domain Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	915	915
Accumulated Amortization	698	665
Net Carrying Amount	217	250
Software [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	299	299
Accumulated Amortization	299	299
Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	46,503	46,503
Accumulated Amortization	8,040	6,893
Net Carrying Amount	38,463	39,610
Technology and Know-how [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,176	3,176
Accumulated Amortization	3,176	3,176
Documented Know-how [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	280	280
Accumulated Amortization	145	127
Net Carrying Amount	135	153
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	162	162
Accumulated Amortization	126	114
Net Carrying Amount	36	48
Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,147	6,754
Accumulated Amortization	3,789	3,247
Net Carrying Amount	$ 3,358	$ 3,507
Minimum [Member] | Trade Name and Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		1 year
Minimum [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		5 years
Minimum [Member] | Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		3 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	11 years
Maximum [Member] | Trade Name and Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		11 years
Maximum [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		8 years
Maximum [Member] | Customer Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		4 months
Maximum [Member] | Domain Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		5 years
Maximum [Member] | Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		4 years
Maximum [Member] | Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		9 years
Maximum [Member] | Technology and Know-how [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		3 years
Maximum [Member] | Documented Know-how [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		4 years
Maximum [Member] | Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		5 years
Maximum [Member] | Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		3 years

Goodwill and Intangible Asset40

Goodwill and Intangible Assets - Future Estimated Amortization Expense (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2016 (Nine months ending December 31)	$ 8,697
2,017	11,480
2,018	11,035
2,019	8,338
2,020	7,619
Thereafter	21,733
Net Carrying Amount	$ 68,902	$ 71,590

Accrued Liabilities - Summary o

Accrued Liabilities - Summary of Accrued Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Marketing programs	$ 6,098	$ 4,323
Payroll and payroll-related liabilities	13,016	18,239
Professional fees	2,635	1,944
Other accrued liabilities	8,533	7,168
Total accrued liabilities	$ 30,282	$ 31,674

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Effective tax rate	19.00%	15.00%
(Provision for) benefit from income taxes	$ (247,000)	$ 63,000
Income (loss) before income taxes	$ (1,320,000)	$ 435,000
U.S. federal statutory rate	35.00%	35.00%
Uncertain tax positions	$ 1,000,000		$ 900,000
Interest expense	$ 4,000	$ 2,000

Common Stock and Equity - Addit

Common Stock and Equity - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Oct. 20, 2014
Class of Stock [Line Items]
Number of shares repurchased	164,127	93,400
Average price of repurchased shares	$ 50.98	$ 54.22
Total cost of shares repurchased	$ 8,400,000	$ 5,100,000
Amount available under share repurchase program	$ 48,000,000
Repurchase Program One [Member]
Class of Stock [Line Items]
Share repurchase program			$ 75,000,000

Stock Incentive Plan - Addition

Stock Incentive Plan - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended				3 Months Ended
	Feb. 29, 2016	May. 31, 2015	May. 31, 2014	Aug. 31, 2013	Mar. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant					2,200,000
Fair value of common stock					$ 50.46	$ 67.10
Number of restricted stock units, granted					285,694
Requisite service period of compensation expense					3 years
Unrecognized share-based compensation cost					$ 59.4
Share-based compensation cost not yet recognized period for recognition					2 years 1 month 6 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of options vested					4 years
Period of expiration					10 years
Time-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of options vested					3 years
Number of restricted stock units, granted					248,194
Market Based Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock units, granted	75,000				37,500
Market Based Restricted Stock Units (RSUs) [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of options vested					2 years
Requisite service period of compensation expense	2 years	2 years	2 years	2 years
Total shareholder return shares, percentage	0.00%
Market Based Restricted Stock Units (RSUs) [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of options vested					3 years
Requisite service period of compensation expense	3 years	3 years	3 years	3 years
Total shareholder return shares, percentage	200.00%

Stock Incentive Plan - Summary

Stock Incentive Plan - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of shares, Outstanding, Beginning balance	768,000
Number of shares, Granted	0
Number of shares, Exercised	(60,000)
Number of shares, Forfeited	(1,000)
Number of shares, Outstanding, Ending balance	707,000	768,000
Number of shares, Exercisable, Ending balance	613,000	598,000
Weighted Average Exercise Price, Outstanding, Beginning balance	$ 30.74
Weighted Average Exercise Price, Granted	0
Weighted Average Exercise Price, Exercised	18.85
Weighted Average Exercise Price, Forfeited	21.43
Weighted Average Exercise Price, Outstanding, Ending balance	31.76	$ 30.74
Weighted Average Exercise Price, Exercisable, Ending balance	$ 32.46	$ 30.54
Weighted Average Remaining Contractual Term (Years), Outstanding	5 years 3 months 18 days	5 years 4 months 24 days
Weighted Average Remaining Contractual Term (Years), Exercisable	5 years	5 years
Aggregate Intrinsic Value, Outstanding, Beginning balance	$ 27,942
Aggregate Intrinsic Value, Exercised	1,946
Aggregate Intrinsic Value, Outstanding, Ending balance	13,225	$ 27,942
Aggregate Intrinsic Value, Exercisable, Ending balance	$ 11,038	$ 21,881

Stock Incentive Plan - Summar46

Stock Incentive Plan - Summary of Assumptions Used in Monte Carlo Simulation Model (Detail) - Market Based TSR Units [Member]	1 Months Ended
	Feb. 29, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.89%
Volatility	40.00%

Stock Incentive Plan - Schedule

Stock Incentive Plan - Schedule of Restricted Stock Unit Activity Including Performance-based TSR Units (Detail)	3 Months Ended
	Mar. 31, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Underlying Restricted Stock Units, granted	285,694
Unvested as of January 1, 2016 | $ / shares	$ 54.37
Restricted stock units granted | $ / shares	54.02
Restricted stock units vested | $ / shares	40.65
Restricted stock units forfeited | $ / shares	54.25
Unvested as of March 31, 2016 | $ / shares	$ 55.62
Restricted Stock Units RSU and Market Based TSR Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Underlying Restricted Stock Units, Unvested, Beginning balance	1,438,000
Number of Shares Underlying Restricted Stock Units, granted	286,000
Number of Shares Underlying Restricted Stock Units, vested	(149,000)
Number of Shares Underlying Restricted Stock Units, forfeited	(27,000)
Number of Shares Underlying Restricted Stock Units, Unvested, Ending balance	1,548,000

Stock Incentive Plan - Schedu48

Stock Incentive Plan - Schedule of Stock Based Compensation Allocated to Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 8,592	$ 4,853
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	548	354
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	1,498	1,328
Sales and Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	3,827	2,030
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 2,719	$ 1,141

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) $ in Thousands, € in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2016USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2014USD ($)Lease	Mar. 31, 2016EUR (€)
Commitments And Guarantees [Line Items]
Minimum lease payments	$ 102,460
Rent expense under all leases	2,900		$ 1,900
Aggregate hosting fees incurred	2,100		1,500
Legal settlements			$ 3,600
Settlement agreement one time fee		$ 8,300
Settlement agreement fee expected to be reimbursed		$ 4,700
Hungary [Member]
Commitments And Guarantees [Line Items]
Minimum lease payments	8,500				€ 7.5
Lease agreement bank guarantee	500				€ 0.5
Massachusetts [Member]
Commitments And Guarantees [Line Items]
Minimum lease payments				$ 47,000
Excess cost				4,000
Leasehold improvement billed as additional rent paid during period	$ 3,400
Lease agreement security deposit				$ 3,300
Number of times lease may be extended | Lease				2
Additional lease term				5 years

Commitments and Contingencies50

Commitments and Contingencies - Schedule of Minimum Future Lease Payments Receivable (Detail) $ in Thousands	Mar. 31, 2016USD ($)
Leases [Abstract]
2016 (Nine months ending December 31)	$ 11,852
2,017	12,369
2,018	11,105
2,019	10,971
2,020	10,757
Thereafter	45,406
Total minimum lease payments	$ 102,460

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Material reclassifications	$ 0
Accumulated other comprehensive income (loss)	(4,690,000)	$ (5,216,000)
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss)	(4,700,000)	(5,200,000)
Unrealized Losses on Marketable Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss)	$ 100,000	$ (27,000)

Credit Facility - Additional In

Credit Facility - Additional Information (Detail) - USD ($)	Apr. 20, 2016	Jan. 22, 2016	Feb. 18, 2015	Mar. 31, 2016	Mar. 31, 2016	Dec. 31, 2015	Apr. 22, 2016	Feb. 29, 2016
Line of Credit Facility [Line Items]
Repayments of borrowings under credit facility					$ 7,500,000
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member]
Line of Credit Facility [Line Items]
Maximum amount of borrowing		$ 150,000,000	$ 100,000,000
Maximum amount of borrowing upon exercise of option		200,000,000
Line of credit facility, Initiation date			Feb. 18, 2015
Line of credit facility, expiration date			Feb. 18, 2020
Additional credit facility subject to further commitment upon exercise of option		$ 50,000,000
Repayments of borrowings under credit facility				$ 7,500,000
Outstanding credit facility				$ 52,500,000	$ 52,500,000			$ 60,000,000
Interest rate on loans				1.9375%	1.9375%
Total leverage ratio					73.00%
Minimum interest coverage ratio				65	65
Maximum leverage ratio limit					2.75
Minimum interest coverage ratio limit				3	3
Origination cost					$ 300,000	$ 1,000,000
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Repayments of borrowings under credit facility	$ 7,500,000
Interest rate on loans							2.00%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Weighted Average [Member]
Line of Credit Facility [Line Items]
Interest rate on loans				1.90%	1.90%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Variable interest rate reset period					30 days
Credit facility commitment fees					0.20%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Variable interest rate reset period					180 days
Credit facility commitment fees					0.30%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Other Assets [Member]
Line of Credit Facility [Line Items]
Capitalized origination costs				$ 1,100,000	$ 1,100,000