LogMeIn (LOGM) 10-Q 23 Oct 15 2015 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 19, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
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		25,061,209

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 160,412	$ 100,960
Marketable securities	85,280	100,209
Accounts receivable (net of allowance for doubtful accounts of $301 and $295 as of December 31, 2014 and September 30, 2015, respectively)	15,892	18,286
Prepaid expenses and other current assets	8,590	4,545
Restricted cash, current portion		1,492
Deferred income tax assets	5,372	5,403
Total current assets	275,546	230,895
Property and equipment, net	18,742	13,476
Restricted cash, net of current portion	2,474	2,531
Intangibles, net	17,622	18,983
Goodwill	37,928	37,928
Other assets	5,632	4,756
Deferred income tax assets	9,218	9,280
Total assets	367,162	317,849
Current liabilities:
Accounts payable	10,977	7,055
Accrued liabilities	27,817	29,482
Deferred revenue, current portion	133,815	101,672
Total current liabilities	172,609	138,209
Deferred revenue, net of current portion	3,227	3,578
Other long-term liabilities	1,570	2,218
Total liabilities	$ 177,406	$ 144,005
Commitments and contingencies (Note 10)
Preferred stock, $0.01 par value - 5,000,000 shares authorized, 0 shares outstanding as of December 31, 2014 and September 30, 2015
Equity:
Common stock, $0.01 par value - 75,000,000 shares authorized as of December 31, 2014 and September 30, 2015; 26,530,977 and 27,411,488 shares issued as of December 31, 2014 and September 30, 2015, respectively; 24,418,760 and 25,049,871 outstanding as of December 31, 2014 and September 30, 2015, respectively	$ 278	$ 267
Additional paid-in capital	260,746	237,203
Retained earnings	14,839	6,516
Accumulated other comprehensive loss	(4,350)	(3,117)
Treasury stock, at cost - 2,112,217 and 2,361,617 shares as of December 31, 2014 and September 30, 2015, respectively	(81,757)	(67,025)
Total equity	189,756	173,844
Total liabilities and equity	$ 367,162	$ 317,849

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 295	$ 301
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	27,411,488	26,530,977
Common stock, shares outstanding	25,049,871	24,418,760
Treasury stock, shares	2,361,617	2,112,217

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Revenue	$ 69,573	$ 58,062	$ 195,516	$ 162,057
Cost of revenue	8,678	7,334	25,195	20,851
Gross profit	60,895	50,728	170,321	141,206
Operating expenses
Research and development	10,379	9,751	29,758	24,436
Sales and marketing	33,929	30,091	102,919	88,854
General and administrative	8,457	7,887	23,771	22,012
Legal settlements			3,600
Amortization of acquired intangibles	286	228	844	753
Total operating expenses	53,051	47,957	160,892	136,055
Income from operations	7,844	2,771	9,429	5,151
Interest income, net	177	167	529	427
Other income (expense)	(649)	6	720	202
Income before income taxes	7,372	2,944	10,678	5,780
Provision for income taxes	(1,809)	(636)	(2,355)	(1,138)
Net income	$ 5,563	$ 2,308	$ 8,323	$ 4,642
Net income per share:
Basic	$ 0.22	$ 0.09	$ 0.34	$ 0.19
Diluted	$ 0.22	$ 0.09	$ 0.32	$ 0.18
Weighted average shares outstanding:
Basic	24,954,935	24,592,053	24,733,126	24,381,859
Diluted	25,768,488	25,203,594	25,678,198	25,105,164

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 5,563	$ 2,308	$ 8,323	$ 4,642
Other comprehensive income (loss):
Net unrealized (losses) gains on marketable securities, (net of tax benefit of $43 and tax provision of $5 for the three months ended September 30, 2014 and 2015; and net of tax benefit of $40 and tax provision of $62 for the nine months ended September 30, 2014 and 2015)	10	(76)	109	(70)
Net translation losses	(41)	(939)	(1,342)	(1,055)
Total other comprehensive loss	(31)	(1,015)	(1,233)	(1,125)
Comprehensive income (loss)	$ 5,532	$ 1,293	$ 7,090	$ 3,517

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net unrealized (losses) gains on marketable securities, tax (benefit) provision	$ 5	$ (43)	$ 62	$ (40)

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities
Net income	$ 8,323	$ 4,642
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	9,232	8,281
Amortization of premium on investments	239	178
Amortization of debt issuance costs	132
Provision for bad debts	52	52
Provision for deferred income taxes	14	516
Income tax benefit form the exercise of stock options	(216)
Stock-based compensation	19,235	18,421
Other, net	1	29
Changes in assets and liabilities:
Accounts receivable	1,931	1,824
Prepaid expenses and other current assets	(2,873)	(1,429)
Other assets	(282)	311
Accounts payable	3,021	584
Accrued liabilities	(2,822)	3,607
Deferred revenue	34,850	20,745
Other long-term liabilities	1,177	1,125
Net cash provided by operating activities	72,014	58,886
Cash flows from investing activities
Purchases of marketable securities	(57,170)	(49,973)
Proceeds from sale or disposal or maturity of marketable securities	72,042	50,000
Purchases of property and equipment	(10,922)	(5,697)
Intangible asset additions	(2,435)	(1,767)
Cash paid for acquisition, net of cash acquired		(22,449)
(Increase) decrease in restricted cash and deposits	1,488	(199)
Net cash (used in) provided by investing activities	3,003	(30,085)
Cash flows from financing activities
Proceeds from issuance of common stock upon option exercises	15,251	12,987
Income tax benefit form the exercise of stock options	216	6
Common stock withheld to satisfy income tax withholdings for restricted stock unit vesting	(11,148)	(5,290)
Payment of debt issuance costs	(977)
Payment of contingent consideration	(226)
Purchase of treasury stock	(14,732)	(26,042)
Net cash used in financing activities	(11,616)	(18,339)
Effect of exchange rate changes on cash and cash equivalents and restricted cash	(3,949)	(3,378)
Net increase in cash and cash equivalents	59,452	7,084
Cash and cash equivalents, beginning of period	100,960	89,257
Cash and cash equivalents, end of period	160,412	96,341
Supplemental disclosure of cash flow information
Cash paid for interest	2	2
Cash paid for income taxes	1,468	887
Noncash investing and financing activities
Purchases of property and equipment included in accounts payable and accrued liabilities	2,269	1,026
Debt issuance costs included in accounts payable and accrued liabilities	11
Fair value of contingent consideration in connection with acquisition included in accrued liabilities and other long term liabilities	$ 27	$ 242

Nature of the Business

Nature of the Business	9 Months Ended
	Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of the Business	1. Nature of the Business LogMeIn, Inc. (the “Company”) simplifies how people connect to each other and the world around them by providing a portfolio of cloud-based service offerings which makes it possible for people and businesses to simply and securely connect to their workplace, colleagues, customers and products. The Company’s product line includes AppGuru ™ ® ® ® ™ ™ ® ® ® ™ ® ® ® ® ™ ™

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2015
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 LogMeIn 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 five years, but are generally one year in duration. The Company’s software cannot be run on another entity’s hardware nor do customers 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 arrangements that are accounted for as a single unit of accounting has been immaterial to date. Revenues are reported net of applicable sales and use tax, value-added tax, and other transaction taxes imposed on the related transaction. Concentrations of Credit Risk and Significant Customers — As of December 31, 2014, one customer accounted for 15% of accounts receivable and there were no customers that represented 10% or more of revenue. For the three and nine months ended September 30, 2014 and 2015, no customers accounted for more than 10% of revenue. As of September 30, 2015, 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. The Company did not record any impairments for the nine months ended September 30, 2015. Foreign Currency Translation — Stock-Based Compensation — with-or-without 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 both December 31, 2014 and September 30, 2015, the Company has provided for a liability of $0.7 million 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) and by service cloud (product grouping) is as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2014 2015 2014 2015 United States $ 38,831 $ 48,721 $ 107,701 $ 137,194 United Kingdom 5,028 5,683 14,353 15,692 International—all other 14,203 15,169 40,003 42,630 Total revenue $ 58,062 $ 69,573 $ 162,057 $ 195,516 Three Months Ended September 30, Nine Months Ended September 30, 2014 2015 2014 2015 Collaboration cloud $ 16,840 $ 22,930 $ 44,873 $ 63,148 IT Management cloud 19,501 23,718 54,193 65,718 Customer Engagement cloud 20,953 22,363 61,345 64,783 Other 768 562 1,646 1,867 Total revenue $ 58,062 $ 69,573 $ 162,057 $ 195,516 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 September 30, 2015, the Company has not experienced any losses related to these indemnification obligations. Net Income Per Share The Company excluded the following options to purchase common shares and restricted stock units from the computation of diluted net income per share because they had an anti-dilutive impact (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2014 2015 2014 2015 Options to purchase common shares 55 — 418 — Restricted stock units 146 238 75 238 Total options and restricted stock units 201 238 493 238 Basic and diluted net income per share was calculated as follows (in thousands, except per share data): Three months ended September 30, Nine months ended September 30, 2014 2015 2014 2015 Basic: Net income $ 2,308 $ 5,563 $ 4,642 $ 8,323 Weighted average common shares outstanding, basic 24,592 24,955 24,382 24,733 Net income per share, basic $ 0.09 $ 0.22 $ 0.19 $ 0.34 Diluted: Net income $ 2,308 $ 5,563 $ 4,642 $ 8,323 Weighted average common shares outstanding 24,592 24,955 24,382 24,733 Add: Common stock equivalents 612 813 723 945 Weighted average common shares outstanding, diluted 25,204 25,768 25,105 25,678 Net income per share, diluted $ 0.09 $ 0.22 $ 0.18 $ 0.32 Recently Issued Accounting Pronouncements — Revenue from Contracts with Customers On June 19, 2014, the FASB issued ASU 2014-12, Stock Compensation Compensation — Stock Compensation On August 27, 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements — Going Concern: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern On February 18, 2015, the FASB issued ASU 2015-02, Consolidation: Amendments to the Consolidation Analysis On April 7, 2015, the FASB issued ASU 2015-03, Interest- Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs On April 15, 2015, the FASB issued ASU 2015-05, Intangibles—Goodwill and Other—Internal-Use Software: Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2015
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 that are carried at fair value (in thousands): Fair Value Measurements at December 31, 2014 Using Level 1 Level 2 Level 3 Total Financial Assets: Cash equivalents — money market funds $ 13,139 $ — $ — $ 13,139 Cash equivalents — bank deposits — 5,003 — 5,003 Short-term marketable securities: U.S. government agency securities 59,903 19,950 — 79,853 Corporate bond securities — 20,356 — 20,356 Contingent consideration liability — — 249 249 Total $ 73,042 $ 45,309 $ 249 $ 118,600 Fair Value Measurements at September 30, 2015 Using Level 1 Level 2 Level 3 Total Financial Assets: Cash equivalents — money market funds $ 6,129 $ — $ — $ 6,129 Cash equivalents — bank deposits — 60 — 60 Short-term marketable securities: U.S. government agency securities 30,145 38,005 — 68,150 Corporate bond securities — 17,130 — 17,130 Contingent consideration liability — — 27 27 Total $ 36,274 $ 55,195 $ 27 $ 91,496 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 Level 3 liability consists of contingent consideration related to the August 27, 2014 acquisition of BBA, Inc., d/b/a Meldium, and the September 5, 2014 acquisition of Zamurai Corporation, each described in Note 4 below. The fair value of the contingent consideration was estimated by applying a probability based model, which utilizes significant inputs that are unobservable in the market. Key assumptions include a 12% discount rate and an assumption that the earn-out will be achieved. A reconciliation of the beginning and ending Level 3 liability is as follows: Nine months ended Balance beginning of period $ 249 Additions to Level 3 — Payments (226 ) Change in fair value of contingent consideration liability 4 Balance end of period $ 27

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2015
Business Combinations [Abstract]
Acquisitions	4. Acquisitions On March 7, 2014, the Company acquired all of the outstanding capital stock of Ionia Corporation, or Ionia, a Boston, Massachusetts based systems integrator, for a cash purchase price of $7.5 million plus contingent retention-based bonuses totaling up to $4.0 million, which are expected to be paid over a two-year period from the date of acquisition. The Company paid $2.0 million in March 2015 and expects to pay the remainder in March 2016. The acquisition has been accounted for as a business combination. The assets acquired and the liabilities assumed were recorded at their estimated fair values as of the acquisition date. The Company retained an independent third party valuation firm to assist in the determination of the fair value of the intangible assets with estimates and assumptions provided by Company management. The excess of the purchase price over the tangible net assets and identifiable intangible assets was recorded as goodwill. The purchase price was allocated as follows (in thousands): Amount Cash $ 67 Current assets 296 Other assets 26 Deferred revenue (70 ) Other liabilities (864 ) Customer backlog 120 Trade name and trademark 10 Customer relationships 1,340 Documented know-how 280 Goodwill 6,295 Total purchase price $ 7,500 The stock purchase agreement included a contingent, retention-based bonus program provision requiring the Company to make additional payments to employees, including former Ionia stockholders now employed by the Company, on the first and second anniversaries of the acquisition, contingent upon their continued employment and achievement of certain bookings goals. The range of the contingent, retention-based bonus payments that the Company could pay is between $0 to $4.0 million. The Company has concluded that the 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 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 Xively platform, customer base, sales force and Internet of Things business plan with Ionia’s 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 liability of approximately $0.7 million related to the amortization of intangible assets which cannot be deducted for tax purposes and is included in the accompanying table above as other liabilities. On August 27, 2014, the Company acquired BBA, Inc., d/b/a Meldium, or Meldium, a San Francisco, California-based The acquisition has been accounted for as a business combination. The assets acquired and the liabilities assumed were recorded at their estimated fair values as of the acquisition date. The Company retained an independent third party valuation firm to assist in the determination of the fair value of the intangible assets with estimates and assumptions provided by Company management. The excess of the purchase price over the tangible net assets and identifiable intangible assets was recorded as goodwill. The following table summarizes the fair value (in thousands) of the assets acquired and liabilities assumed at the date of acquisition: Amount Cash $ 120 Current assets 90 Other assets 436 Deferred revenue (5 ) Other liabilities (935 ) Completed technology 1,580 Trade name and trademark 30 Customer relationships 100 Goodwill 9,437 Total purchase price 10,853 Liability for contingent consideration (216 ) Cash paid $ 10,637 The merger agreement included a contingent, retention-based bonus program requiring the Company to make additional payments to employees, including former Meldium stockholders now employed by the Company, in the first quarter of 2015 and on the first and second anniversaries of the date of acquisition, contingent upon their continued employment and achievement of certain product integration goals. The range of the contingent, retention-based bonus payments that the Company could pay is between $0 to $4.3 million. The Company has concluded that the 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 contingent bonus program also includes payments to non-employee stockholders for an amount between $0 and $226,000, which the Company has concluded is contingent consideration and is part of the purchase price. This contingent liability was recorded at its fair value of $216,000 at the acquisition date. The Company re-measured the fair value of the contingent consideration at each subsequent reporting period and recognized any adjustments to fair value as part of earnings. 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 Meldium’s product, technical expertise and customer base. All goodwill and intangible assets acquired are not deductible for income tax purposes. The Company recorded both a current and a long-term deferred tax asset of $0.1 million and $0.4 million, respectively, primarily related to net operating losses that were acquired as a part of the acquisition and are shown in the accompanying table above as current assets and other assets, respectively. The Company also recorded a long-term deferred tax liability of $0.7 million related to the amortization of intangible assets which cannot be deducted for tax purposes and are included in the accompanying table above as other liabilities. On September 5, 2014, the Company acquired all of the outstanding capital stock of Zamurai Corporation, or Zamurai, a San Francisco, California-based collaboration software provider, for a cash purchase price of $4.5 million plus contingent bonuses totaling up to $1.5 million, which are expected to be paid two years from the date of acquisition. This acquisition has been accounted for as a business combination. The assets acquired and the liabilities assumed were recorded at their estimated fair values as of the acquisition date. The Company retained an independent third party valuation firm to assist in the determination of the fair value of the intangible assets with estimates and assumptions provided by Company management. The excess of the purchase price over the tangible net assets and identifiable intangible assets was recorded as goodwill. The following table summarizes the fair value (in thousands) of the assets acquired and liabilities assumed at the date of acquisition: Amount Cash $ 2 Current assets 13 Other assets 404 Other liabilities (439 ) Completed technology 960 Trade name and trademark 100 Goodwill 3,484 Total purchase price 4,524 Liability for contingent consideration (24 ) Cash paid $ 4,500 The stock purchase agreement included a contingent, retention-based bonus program provision requiring the Company to make additional payments to employees, including former stockholders now employed by the Company, on the second anniversary of the acquisition, contingent upon their continued employment and achievement of certain product integration goals. The range of the contingent, retention-based bonus payments that the Company could pay is between $0 to $1.5 million. The Company has concluded that the 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 contingent bonus program also includes payments to non-employee stockholders for an amount between $0 and $30,000, which the Company has concluded is contingent consideration and is part of the purchase price. This contingent liability was recorded at its fair value of $24,000 at the acquisition date. The Company continues to re-measure the fair value of the contingent consideration at each subsequent reporting period and recognizes any adjustments to fair value as part of earnings. 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 join.me product, customer base, sales force and join.me business plan with the collaboration software provider’s 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 $0.4 million related to net operating losses that were acquired as a part of the acquisition, which is included in the accompanying table above as other assets. The Company also recorded a long-term deferred tax liability of $0.4 million related to the amortization of intangible assets which cannot be deducted for tax purposes and is included in the accompanying table above as other liabilities. The Company incurred $0.3 million and $0.4 million of acquisition-related costs which are included in general and administrative expense for the three and nine months ended September 30, 2014.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2015
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 nine months ended September 30, 2015. Intangible assets consist of the following (in thousands): December 31, 2014 September 30, 2015 Estimated Gross Accumulated Net Gross Accumulated Net Carrying Trade names and trademarks 1-5 years $ 806 $ 682 $ 124 $ 806 $ 775 $ 31 Customer relationships 5-8 years 5,229 2,546 2,683 5,229 3,120 2,109 Customer backlog 4 months 120 120 — 120 120 — Domain names 5 years 907 507 400 915 632 283 Software 4 years 299 299 — 299 299 — Completed technology 3-8 years 16,903 3,981 12,922 17,104 6,072 11,032 Technology and know-how 3 years 3,176 3,176 — 3,176 3,176 — Documented know-how 4 years 280 57 223 280 110 170 Non-Compete agreements 5 years 162 71 91 162 104 58 Internally developed software 3 years 4,591 2,051 2,540 6,815 2,876 3,939 $ 32,473 $ 13,490 $ 18,983 $ 34,906 $ 17,284 $ 17,622 The Company is amortizing the intangible assets 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 eight years. The Company capitalized $0.4 million and $0.5 million during the three months ended September 30, 2014 and 2015, respectively, and $1.3 million and $2.2 million during the nine months ended September 30, 2014 and 2015, 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 also acquired $0.2 million of intellectual property during the nine months ended September 30, 2015. The Company is amortizing its intangible assets over the estimated lives noted above. Amortization expense for intangible assets was $1.2 million and $1.3 million for the three months ended September 30, 2014 and 2015, respectively, and $3.7 million and $3.8 million for the nine months ended September 30, 2014 and 2015, respectively. Amortization relating to software, 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 base, customer backlog, domain names, and non-compete agreements is recorded within operating expenses. Future estimated amortization expense for intangible assets at September 30, 2015 is as follows (in thousands): Amortization Expense (Years Ending December 31) Amount 2015 (Three months ending December 31) $ 1,430 2016 5,388 2017 5,047 2018 4,069 2019 1,138 Thereafter 550 Total $ 17,622

Accrued Liabilities

Accrued Liabilities	9 Months Ended
	Sep. 30, 2015
Payables and Accruals [Abstract]
Accrued Liabilities	6. Accrued Liabilities Accrued liabilities consisted of the following (in thousands): December 31, September 30, 2015 Marketing programs $ 7,626 $ 4,862 Payroll and payroll related 14,873 12,939 Professional fees 1,961 2,521 Other accrued liabilities 5,022 7,495 Total accrued liabilities $ 29,482 $ 27,817

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	7. Income Taxes For the three months ended September 30, 2014 and 2015, the Company’s effective tax rate was 22%, or $0.6 million, on pre-tax earnings of $2.9 million and 25%, or $1.8 million, on pre-tax earnings of $7.4 million, respectively. For the nine months ended September 30, 2014 and 2015, the effective tax rate was 20%, or $1.1 million, on pre-tax earnings of $5.8 million and 22%, or $2.4 million, on pre-tax earnings of $10.7 million, respectively. The effective income tax rates for the nine months ended September 30, 2014 and 2015 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, 2014 and September 30, 2015, 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 2009 are open to examination by federal, state, and 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 provide 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 $0.7 million as of both December 31, 2014 and September 30, 2015. 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 $1,000 and $0 of interest expense for the nine months ended September 30, 2014 and 2015, respectively.

Common Stock and Equity

Common Stock and Equity	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Common Stock and Equity	8. Common Stock and Equity On August 13, 2013, the Board of Directors approved a $50 million share repurchase program and approved an additional $75 million share repurchase program on October 20, 2014. Share repurchases are made from time-to-time For the three months ended September 30, 2014, the Company repurchased 432,832 shares of its common stock at an average price of $44.11 and per share for a total cost of $19.1 million. There were no shares repurchased during the three months ended September 30, 2015. For the nine months ended September 30, 2014 and 2015, the Company repurchased 627,843 and 249,400 shares of its common stock at an average price of $41.48 and $59.07 per share for a total cost of $26.0 million and $14.7 million, respectively. At September 30, 2015, approximately $59.7 million remained available under the Company’s share repurchase program.

Stock Incentive Plan

Stock Incentive Plan	9 Months Ended
	Sep. 30, 2015
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. Options generally vest over a four-year period and expire ten years from the date of grant. 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. Certain stock-based awards provide for accelerated vesting if the Company experiences a change in control. On May 21, 2015, the Company’s stockholders approved an amendment to the 2009 Plan that increased the shares available for grant under the plan by 1,300,000 shares. As of September 30, 2015, there were 2,569,555 shares available for grant under the 2009 Plan. The Company uses the Black-Scholes option-pricing model to estimate the grant date fair value of stock options. The Company estimates the expected volatility of its common stock at the date of grant based on the historical volatility of comparable public companies over the option’s expected term as well as its own stock price volatility since the Company’s IPO. The Company estimates expected term based on historical exercise activity and giving consideration to the contractual term of the options, vesting schedules, employee turnover, and expectation of employee exercise behavior. The assumed dividend yield is based upon the Company’s expectation of not paying dividends in the foreseeable future. The risk-free rate for periods within the estimated life of the stock option is based on the U.S. Treasury yield curve in effect at the time of grant. Historical employee turnover data is used to estimate pre-vesting stock option forfeiture rates. The compensation expense is amortized on a straight-line basis over the requisite service period of the stock option, which is generally four years. The Company used the following assumptions to apply the Black-Scholes option-pricing model: Three Months Ended September 30, Nine Months Ended September 30, 2014(1) 2015(2) 2014 2015(2) Expected dividend yield — % — % — % — % Risk-free interest rate — % — % 1.48 % — % Expected term (in years) — — 6.25 — Volatility — % — % 55 % — % (1) There were no stock options granted during the three months ended September 30, 2014 (2) There were no stock options granted during the three and nine months ended September 30, 2015. The following table summarizes stock option activity (shares and intrinsic value in thousands): Number Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value Outstanding at January 1, 2015 1,407 $ 30.02 6.2 $ 27,186 Granted — — Exercised (499 ) 30.56 $ 14,419 Forfeited (21 ) 32.78 Outstanding at September 30, 2015 887 $ 29.65 5.6 $ 34,160 Exercisable at December 31, 2014 957 $ 28.24 5.7 $ 20,190 Exercisable at September 30, 2015 689 $ 29.18 5.2 $ 26,858 The aggregate intrinsic value was calculated based on the positive differences between the fair value of the Company’s common stock of $49.34 per share on December 31, 2014 and $68.16 per share on September 30, 2015, or at time of exercise, and the exercise price of the options. During the three and nine months ended September 30, 2015, the Company granted 153,005 and 804,235 restricted stock units, which contained time-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 and May 2015, 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 August 2013, May 2014 and May 2015 TSR Units were a total of 74,000, 71,000 and 85,000 shares, respectively. The 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 148,000, 142,000 and 170,000 shares for the August 2013, May 2014 and May 2015 grants, respectively, 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. As of September 30, 2015, 20,000 shares from the August 2013 TSR Unit grant, 42,000 shares from the May 2014 TSR Unit grant, and 25,000 shares from the May 2015 TSR Unit grant have been forfeited or are expected to be forfeited. All TSR Units granted by the Company are valued using a Monte Carlo simulation model. The number of awards expected to be earned is factored into the grant date Monte Carlo valuation for the TSR Unit. Expected volatility is based on the Company’s historical volatility. The risk-free interest rate is based upon U.S. Treasury securities with a term similar to the vesting term of the TSR Units. The assumptions used in the Monte Carlo simulation model include (but are not limited to) the following: August 2013 Grant May 2014 Grant May 2015 Grant Risk-free interest rate 0.62 % 0.78 % 0.93 % Volatility 54 % 54 % 50 % In August 2015, the first performance period for the August 2013 grant ended and, based on the Company’s level of achievement of its relative TSR goal, 200% of the shares granted from the August 2013 grant were earned and 54,000 shares were issued as a result. 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, 2015 1,279 $ 37.42 Restricted stock units granted 889 62.98 Restricted stock units vested (528 ) 35.19 Restricted stock units forfeited (186 ) 43.11 Unvested as of September 30, 2015 1,454 $ 53.38 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 September 30, Nine Months Ended September 30, 2014 2015 2014 2015 Cost of revenue $ 295 $ 314 $ 804 $ 1,132 Research and development 863 1,193 2,647 4,051 Sales and marketing 2,202 3,117 7,059 7,972 General and administrative 2,910 2,044 7,911 6,080 $ 6,270 $ 6,668 $ 18,421 $ 19,235 As of September 30, 2015, there was approximately $60.2 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 2.2 years. The total unrecognized share-based compensation cost will be adjusted for future changes in estimated forfeitures.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	10. Commitments and Contingencies Operating Leases In December 2014, the Company entered into a lease for new office space in Boston, Massachusetts. The landlord is obligated to rehabilitate the existing building and the Company expects that the lease term will begin in November 2015 and extend through April 2028. The aggregate amount of minimum lease payments to be made over the term of the lease is approximately $47 million. Pursuant to the terms of the lease, the landlord is 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 approximately $7 million. The lease required a security deposit of approximately $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. In May 2015, the Company entered into an agreement to sublease a portion of the office space it currently leases in its Dublin, Ireland office. The sublease term began in May 2015 and extends to August 2017 which aligns with the non-cancelable term of the Company’s head lease. The tenant will pay $0.2 million per year, which recovers the Company’s costs under the remaining term. Rent expense under all leases was $1.8 million for both the three months ended September 30, 2014 and 2015, and $5.2 million and $5.7 million for the nine months ended September 30, 2014 and 2015, 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. Hosting fees incurred under these arrangements aggregated approximately $1.3 million and $1.8 million for the three months ended September 30, 2014 and 2015, respectively, and $3.7 million and $4.8 million for the nine months ended September 30, 2014 and 2015, respectively. Future minimum lease payments at September 30, 2015 under non-cancelable operating leases, including one year commitments associated with the Company’s hosting services arrangements, are approximately as follows (in thousands): Years Ending December 31 2015 (Three months ending December 31) $ 2,947 2016 10,943 2017 10,361 2018 10,402 2019 9,840 Thereafter 53,305 Total minimum lease payments 97,798 Less: Sublease income 446 Total minimum lease payments, net $ 97,352 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 ® trademark to the Company and the parties agreed to mutually release each other from any and all claims related to the complaint filed by Sensory against the Company in the U.S. District Court for the Southern District of Indiana on August 26, 2014. In the second quarter of 2015, the Company paid Sensory a one-time fee of $8.3 million, $4.7 million of which was reimbursed by the Company’s insurance provider, in connection with the Settlement Agreement. The Company believed that the JOIN ® trademark had de minimis value and therefore expensed $3.6 million in the first quarter of 2015 as legal settlement expense. On August 28, 2014, a putative class action complaint was filed against the Company in the U.S. District Court for the Eastern District of California (Case No. 1:14-cv-01355) by an individual on behalf of himself and purportedly on behalf of all other similarly situated individuals, or collectively, the Ignition Plaintiffs. The Ignition Plaintiffs have since amended their initial complaint on February 17, 2015, May 6, 2015 and September 18, 2015. The amended complaint includes claims made under California’s False Advertising Law and Unfair Competition Law relating to the Company’s sale of its Ignition for iOS application, or the App, and the Ignition Plaintiffs’ continued use of the App and seeks restitution, damages in an unspecified amount, attorney’s fees and costs, and unspecified equitable and injunctive relief. The Company believes it has meritorious defenses to these claims and intends to defend the lawsuit vigorously. Given the inherent unpredictability of litigation and the fact that this litigation is still in its early stages, the Company is unable to predict the outcome of this litigation or reasonably estimate a possible loss or range of loss associated with this litigation at this time. On June 29, 2015, a putative class action complaint was filed against the Company in the U.S. District Court for the Central District of California (Case No. 5:15-cv-01258) by an individual on behalf of himself and purportedly on behalf of all other similarly situated individuals, or collectively, the Central Plaintiffs, under California’s Automatic Purchase Renewal Statute and Unfair Competition Law related to pricing changes and billing practices for subscriptions to the Company’s LogMeIn Central service. On October 7, 2015, the Company entered into a Settlement Agreement resolving the matter in exchange for a one-time settlement payment of $25,000. The Company expects the class action complaint to be dismissed by the U.S. District Court for the Central District of California in the fourth quarter of 2015. 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 consolidated financial statements.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Accumulated Other Comprehensive Loss	11. Accumulated Other Comprehensive Loss The changes in accumulated other comprehensive income for the nine months ended September 30, 2015 consisted of the following (in thousands): Unrealized Gain (Loss) on Marketable Securities Foreign Currency Translation Adjustment Total Balance at December 31, 2014 $ (82 ) $ (3,035 ) $ (3,117 ) Other comprehensive income (loss) 114 (1,532 ) (1,418 ) Balance at March 31, 2015 32 (4,567 ) (4,535 ) Other comprehensive income (loss) (15 ) 231 216 Balance at June 30, 2015 $ 17 $ (4,336 ) $ (4,319 ) Other comprehensive income (loss) 10 (41 ) (31 ) Balance at September 30, 2015 $ 27 $ (4,377 ) $ (4,350 ) There were no material reclassifications as of September 30, 2015.

Credit Facility

Credit Facility	9 Months Ended
	Sep. 30, 2015
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 Facility”), pursuant to which a secured revolving credit facility up to $100 million in the aggregate shall be available to the Company. The Credit Facility may be increased by up to an additional $50 million if the existing or additional lenders are willing to make such increased commitments. The Credit Facility shall be available to the Company on a revolving basis during the period commencing on 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 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. As of September 30, 2015, no amounts had been drawn against the Credit Facility. On October 14, 2015, the Company borrowed $60 million under the Credit Facility in order to partially fund the acquisition described in Note 13 below. The currencies that are currently available for borrowing under the Credit Facility are U.S Dollars, Euros, and British Pound Sterling. Additional currencies may be added with the approval of all lenders under the Credit Facility. The maximum amount of borrowings in currencies other than U.S. Dollars is $20 million. Interest rates for U.S. Dollar loans under the Credit Facility are determined, at the option of the Company, by reference to a Eurodollar rate or a base rate, and range from 1.50% to 2.00% above the Eurodollar rate for Eurodollar-based borrowings or from 0.50% to 1.00% above the defined base rate for base rate borrowings, in each case based upon the Company’s total leverage ratio. Interest rates for loans in currencies other than U.S. Dollars range from 1.50% to 2.00% above the respective London Interbank Offered Rates, or LIBOR, for those currencies, also based on the Company’s total leverage ratio. 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. The Credit Facility 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 Facility. The Credit Facility also imposes limits on capital expenditures of the Company and its subsidiaries and requires the Company to maintain a maximum total leverage ratio and a minimum interest coverage ratio, each as further defined in the Credit Facility. As of September 30, 2015, the Company was in compliance with all financial and operating covenants of the Credit Facility.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2015
Subsequent Events [Abstract]
Subsequent Events	13. Subsequent Events On October 15, 2015, pursuant to a Stock Purchase Agreement dated October 8, 2015, the Company acquired all of the outstanding equity interests in Marvasol, Inc., a Delaware corporation d/b/a “LastPass” (“LastPass”), providers of an identity and password management service, for approximately $110 million in cash upon close. An additional $15 million in cash is payable in contingent payments which are expected to be paid to equity holders and key employees of LastPass upon their achievement of certain milestone and retention targets over the two-year period following the closing of the transaction. The Company funded the acquisition with a combination of existing cash on hand and with $60 million borrowed under its existing Credit Facility on October 14, 2015. The Company acquired LastPass to bolster its position in the identity and access management market. At the time of the acquisition, LastPass had approximately 30 employees and calendar year 2014 revenue was $9.6 million. The Company has not yet completed its acquisition accounting for this transaction.

Summary of Significant Accoun21

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2015
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 LogMeIn 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 five years, but are generally one year in duration. The Company’s software cannot be run on another entity’s hardware nor do customers 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 arrangements that are accounted for as a single unit of accounting has been immaterial to date. Revenues are reported net of applicable sales and use tax, value-added tax, and other transaction taxes imposed on the related transaction.
Concentrations of Credit Risk and Significant Customers	Concentrations of Credit Risk and Significant Customers — As of December 31, 2014, one customer accounted for 15% of accounts receivable and there were no customers that represented 10% or more of revenue. For the three and nine months ended September 30, 2014 and 2015, no customers accounted for more than 10% of revenue. As of September 30, 2015, 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. The Company did not record any impairments for the nine months ended September 30, 2015.
Foreign Currency Translation	Foreign Currency Translation —
Stock-Based Compensation	Stock-Based Compensation — with-or-without
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 both December 31, 2014 and September 30, 2015, the Company has provided for a liability of $0.7 million 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) and by service cloud (product grouping) is as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2014 2015 2014 2015 United States $ 38,831 $ 48,721 $ 107,701 $ 137,194 United Kingdom 5,028 5,683 14,353 15,692 International—all other 14,203 15,169 40,003 42,630 Total revenue $ 58,062 $ 69,573 $ 162,057 $ 195,516 Three Months Ended September 30, Nine Months Ended September 30, 2014 2015 2014 2015 Collaboration cloud $ 16,840 $ 22,930 $ 44,873 $ 63,148 IT Management cloud 19,501 23,718 54,193 65,718 Customer Engagement cloud 20,953 22,363 61,345 64,783 Other 768 562 1,646 1,867 Total revenue $ 58,062 $ 69,573 $ 162,057 $ 195,516
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 September 30, 2015, the Company has not experienced any losses related to these indemnification obligations.
Net Income Per Share	Net Income Per Share The Company excluded the following options to purchase common shares and restricted stock units from the computation of diluted net income per share because they had an anti-dilutive impact (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2014 2015 2014 2015 Options to purchase common shares 55 — 418 — Restricted stock units 146 238 75 238 Total options and restricted stock units 201 238 493 238 Basic and diluted net income per share was calculated as follows (in thousands, except per share data): Three months ended September 30, Nine months ended September 30, 2014 2015 2014 2015 Basic: Net income $ 2,308 $ 5,563 $ 4,642 $ 8,323 Weighted average common shares outstanding, basic 24,592 24,955 24,382 24,733 Net income per share, basic $ 0.09 $ 0.22 $ 0.19 $ 0.34 Diluted: Net income $ 2,308 $ 5,563 $ 4,642 $ 8,323 Weighted average common shares outstanding 24,592 24,955 24,382 24,733 Add: Common stock equivalents 612 813 723 945 Weighted average common shares outstanding, diluted 25,204 25,768 25,105 25,678 Net income per share, diluted $ 0.09 $ 0.22 $ 0.18 $ 0.32
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements — Revenue from Contracts with Customers On June 19, 2014, the FASB issued ASU 2014-12, Stock Compensation Compensation — Stock Compensation On August 27, 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements — Going Concern: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern On February 18, 2015, the FASB issued ASU 2015-02, Consolidation: Amendments to the Consolidation Analysis On April 7, 2015, the FASB issued ASU 2015-03, Interest- Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs On April 15, 2015, the FASB issued ASU 2015-05, Intangibles—Goodwill and Other—Internal-Use Software: Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement

Summary of Significant Accoun22

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2015
Accounting Policies [Abstract]
Schedule of Revenue by Geographic Areas	The Company’s revenue by geography (based on customer address) and by service cloud (product grouping) is as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2014 2015 2014 2015 United States $ 38,831 $ 48,721 $ 107,701 $ 137,194 United Kingdom 5,028 5,683 14,353 15,692 International—all other 14,203 15,169 40,003 42,630 Total revenue $ 58,062 $ 69,573 $ 162,057 $ 195,516
Schedule of Revenue by Service Cloud	The Company’s revenue by geography (based on customer address) and by service cloud (product grouping) is as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2014 2015 2014 2015 Collaboration cloud $ 16,840 $ 22,930 $ 44,873 $ 63,148 IT Management cloud 19,501 23,718 54,193 65,718 Customer Engagement cloud 20,953 22,363 61,345 64,783 Other 768 562 1,646 1,867 Total revenue $ 58,062 $ 69,573 $ 162,057 $ 195,516
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 per share because they had an anti-dilutive impact (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2014 2015 2014 2015 Options to purchase common shares 55 — 418 — Restricted stock units 146 238 75 238 Total options and restricted stock units 201 238 493 238
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 September 30, Nine months ended September 30, 2014 2015 2014 2015 Basic: Net income $ 2,308 $ 5,563 $ 4,642 $ 8,323 Weighted average common shares outstanding, basic 24,592 24,955 24,382 24,733 Net income per share, basic $ 0.09 $ 0.22 $ 0.19 $ 0.34 Diluted: Net income $ 2,308 $ 5,563 $ 4,642 $ 8,323 Weighted average common shares outstanding 24,592 24,955 24,382 24,733 Add: Common stock equivalents 612 813 723 945 Weighted average common shares outstanding, diluted 25,204 25,768 25,105 25,678 Net income per share, diluted $ 0.09 $ 0.22 $ 0.18 $ 0.32

Fair Value of Financial Instr23

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Summary of Company's Financial Assets Carried at Fair Value	The following table summarizes the basis used to measure certain of the Company’s financial assets that are carried at fair value (in thousands): Fair Value Measurements at December 31, 2014 Using Level 1 Level 2 Level 3 Total Financial Assets: Cash equivalents — money market funds $ 13,139 $ — $ — $ 13,139 Cash equivalents — bank deposits — 5,003 — 5,003 Short-term marketable securities: U.S. government agency securities 59,903 19,950 — 79,853 Corporate bond securities — 20,356 — 20,356 Contingent consideration liability — — 249 249 Total $ 73,042 $ 45,309 $ 249 $ 118,600 Fair Value Measurements at September 30, 2015 Using Level 1 Level 2 Level 3 Total Financial Assets: Cash equivalents — money market funds $ 6,129 $ — $ — $ 6,129 Cash equivalents — bank deposits — 60 — 60 Short-term marketable securities: U.S. government agency securities 30,145 38,005 — 68,150 Corporate bond securities — 17,130 — 17,130 Contingent consideration liability — — 27 27 Total $ 36,274 $ 55,195 $ 27 $ 91,496
Reconciliation of Beginning and Ending Level 3 Liability	A reconciliation of the beginning and ending Level 3 liability is as follows: Nine months ended Balance beginning of period $ 249 Additions to Level 3 — Payments (226 ) Change in fair value of contingent consideration liability 4 Balance end of period $ 27

Acquisitions (Tables)

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2015
Ionia Corp [Member]
Purchase Price Allocation	The purchase price was allocated as follows (in thousands): Amount Cash $ 67 Current assets 296 Other assets 26 Deferred revenue (70 ) Other liabilities (864 ) Customer backlog 120 Trade name and trademark 10 Customer relationships 1,340 Documented know-how 280 Goodwill 6,295 Total purchase price $ 7,500
BBA, Inc., "Meldium" [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: Amount Cash $ 120 Current assets 90 Other assets 436 Deferred revenue (5 ) Other liabilities (935 ) Completed technology 1,580 Trade name and trademark 30 Customer relationships 100 Goodwill 9,437 Total purchase price 10,853 Liability for contingent consideration (216 ) Cash paid $ 10,637
Zamurai Corporation, A San Francisco, California-based Collaboration Software Provider [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: Amount Cash $ 120 Current assets 90 Other assets 436 Deferred revenue (5 ) Other liabilities (935 ) Completed technology 1,580 Trade name and trademark 30 Customer relationships 100 Goodwill 9,437 Total purchase price 10,853 Liability for contingent consideration (216 ) Cash paid $ 10,637

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible assets consist of the following (in thousands): December 31, 2014 September 30, 2015 Estimated Gross Accumulated Net Gross Accumulated Net Carrying Trade names and trademarks 1-5 years $ 806 $ 682 $ 124 $ 806 $ 775 $ 31 Customer relationships 5-8 years 5,229 2,546 2,683 5,229 3,120 2,109 Customer backlog 4 months 120 120 — 120 120 — Domain names 5 years 907 507 400 915 632 283 Software 4 years 299 299 — 299 299 — Completed technology 3-8 years 16,903 3,981 12,922 17,104 6,072 11,032 Technology and know-how 3 years 3,176 3,176 — 3,176 3,176 — Documented know-how 4 years 280 57 223 280 110 170 Non-Compete agreements 5 years 162 71 91 162 104 58 Internally developed software 3 years 4,591 2,051 2,540 6,815 2,876 3,939 $ 32,473 $ 13,490 $ 18,983 $ 34,906 $ 17,284 $ 17,622
Future Estimated Amortization Expense	Future estimated amortization expense for intangible assets at September 30, 2015 is as follows (in thousands): Amortization Expense (Years Ending December 31) Amount 2015 (Three months ending December 31) $ 1,430 2016 5,388 2017 5,047 2018 4,069 2019 1,138 Thereafter 550 Total $ 17,622

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	9 Months Ended
	Sep. 30, 2015
Payables and Accruals [Abstract]
Summary of Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): December 31, September 30, 2015 Marketing programs $ 7,626 $ 4,862 Payroll and payroll related 14,873 12,939 Professional fees 1,961 2,521 Other accrued liabilities 5,022 7,495 Total accrued liabilities $ 29,482 $ 27,817

Stock Incentive Plan (Tables)

Stock Incentive Plan (Tables)	9 Months Ended
	Sep. 30, 2015
Summary of Stock Option Activity	The following table summarizes stock option activity (shares and intrinsic value in thousands): Number Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value Outstanding at January 1, 2015 1,407 $ 30.02 6.2 $ 27,186 Granted — — Exercised (499 ) 30.56 $ 14,419 Forfeited (21 ) 32.78 Outstanding at September 30, 2015 887 $ 29.65 5.6 $ 34,160 Exercisable at December 31, 2014 957 $ 28.24 5.7 $ 20,190 Exercisable at September 30, 2015 689 $ 29.18 5.2 $ 26,858
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, 2015 1,279 $ 37.42 Restricted stock units granted 889 62.98 Restricted stock units vested (528 ) 35.19 Restricted stock units forfeited (186 ) 43.11 Unvested as of September 30, 2015 1,454 $ 53.38
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 September 30, Nine Months Ended September 30, 2014 2015 2014 2015 Cost of revenue $ 295 $ 314 $ 804 $ 1,132 Research and development 863 1,193 2,647 4,051 Sales and marketing 2,202 3,117 7,059 7,972 General and administrative 2,910 2,044 7,911 6,080 $ 6,270 $ 6,668 $ 18,421 $ 19,235
Black Scholes Option Pricing Model [Member]
Summary of Valuation Assumptions	The Company used the following assumptions to apply the Black-Scholes option-pricing model: Three Months Ended September 30, Nine Months Ended September 30, 2014(1) 2015(2) 2014 2015(2) Expected dividend yield — % — % — % — % Risk-free interest rate — % — % 1.48 % — % Expected term (in years) — — 6.25 — Volatility — % — % 55 % — % (1) There were no stock options granted during the three months ended September 30, 2014 (2) There were no stock options granted during the three and nine months ended September 30, 2015.
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: August 2013 Grant May 2014 Grant May 2015 Grant Risk-free interest rate 0.62 % 0.78 % 0.93 % Volatility 54 % 54 % 50 %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Schedule of Minimum Future Lease Payments Receivable	Future minimum lease payments at September 30, 2015 under non-cancelable operating leases, including one year commitments associated with the Company’s hosting services arrangements, are approximately as follows (in thousands): Years Ending December 31 2015 (Three months ending December 31) $ 2,947 2016 10,943 2017 10,361 2018 10,402 2019 9,840 Thereafter 53,305 Total minimum lease payments 97,798 Less: Sublease income 446 Total minimum lease payments, net $ 97,352

Accumulated Other Comprehensi29

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Income	The changes in accumulated other comprehensive income for the nine months ended September 30, 2015 consisted of the following (in thousands): Unrealized Gain (Loss) on Marketable Securities Foreign Currency Translation Adjustment Total Balance at December 31, 2014 $ (82 ) $ (3,035 ) $ (3,117 ) Other comprehensive income (loss) 114 (1,532 ) (1,418 ) Balance at March 31, 2015 32 (4,567 ) (4,535 ) Other comprehensive income (loss) (15 ) 231 216 Balance at June 30, 2015 $ 17 $ (4,336 ) $ (4,319 ) Other comprehensive income (loss) 10 (41 ) (31 ) Balance at September 30, 2015 $ 27 $ (4,377 ) $ (4,350 )

Summary of Significant Accoun30

Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015USD ($)Customer	Sep. 30, 2014USD ($)Customer	Sep. 30, 2015USD ($)CustomerSegment	Sep. 30, 2014USD ($)Customer	Dec. 31, 2014USD ($)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		$ 100,300,000
Marketable securities	85,280,000		85,280,000		100,209,000
Marketable securities, unrealized gains	54,000		54,000		9,000
Marketable securities, unrealized losses	12,000		$ 12,000		138,000
Number of reporting unit | Segment			1
Number of operating segments | Segment			1
Goodwill impairments			$ 0
Long-lived asset impairment			0
Foreign currency gains		$ 5,000	1,000,000	$ 200,000
Foreign currency losses	500,000
Uncertain tax positions	700,000		700,000		$ 700,000
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		1
Sales Revenue, Net [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Revenue, number of customers accounted | Customer	0	0	0	0	0
Minimum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Revenue subscription period			1 month
Intangible assets, estimated useful life			4 months
Maximum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Revenue subscription period			5 years
Intangible assets, estimated useful life			8 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					15.00%
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%
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%	10.00%	10.00%

Summary of Significant Accoun31

Summary of Significant Accounting Policies - Schedule of Revenue by Geographic Areas (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue from External Customer [Line Items]
Revenues	$ 69,573	$ 58,062	$ 195,516	$ 162,057
United States [Member]
Revenue from External Customer [Line Items]
Revenues	48,721	38,831	137,194	107,701
United Kingdom [Member]
Revenue from External Customer [Line Items]
Revenues	5,683	5,028	15,692	14,353
International - All Other [Member]
Revenue from External Customer [Line Items]
Revenues	$ 15,169	$ 14,203	$ 42,630	$ 40,003

Summary of Significant Accoun32

Summary of Significant Accounting Policies - Schedule of Revenue by Service Cloud (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue from External Customer [Line Items]
Revenues	$ 69,573	$ 58,062	$ 195,516	$ 162,057
Collaboration Cloud [Member]
Revenue from External Customer [Line Items]
Revenues	22,930	16,840	63,148	44,873
IT Management Cloud [Member]
Revenue from External Customer [Line Items]
Revenues	23,718	19,501	65,718	54,193
Customer Engagement Cloud [Member]
Revenue from External Customer [Line Items]
Revenues	22,363	20,953	64,783	61,345
Other [Member]
Revenue from External Customer [Line Items]
Revenues	$ 562	$ 768	$ 1,867	$ 1,646

Summary of Significant Accoun33

Summary of Significant Accounting Policies - Schedule of Options to Purchase Common Shares and Restricted Stock Units (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options and restricted stock units	238	201	238	493
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options and restricted stock units		55		418
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options and restricted stock units	238	146	238	75

Summary of Significant Accoun34

Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Net Income per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Basic:
Net income	$ 5,563	$ 2,308	$ 8,323	$ 4,642
Weighted average common shares outstanding, basic	24,954,935	24,592,053	24,733,126	24,381,859
Net income per share, basic	$ 0.22	$ 0.09	$ 0.34	$ 0.19
Diluted:
Net income	$ 5,563	$ 2,308	$ 8,323	$ 4,642
Weighted average common shares outstanding	24,954,935	24,592,053	24,733,126	24,381,859
Add: Common stock equivalents	813,000	612,000	945,000	723,000
Weighted average common shares outstanding, diluted	25,768,488	25,203,594	25,678,198	25,105,164
Net income per share, diluted	$ 0.22	$ 0.09	$ 0.32	$ 0.18

Fair Value of Financial Instr35

Fair Value of Financial Instruments - Summary of Company's Financial Assets Carried at Fair Value (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	$ 85,280	$ 100,209
Contingent consideration liability	27	249
Total	91,496	118,600
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	27	249
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	6,129	13,139
Bank Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	60	5,003
U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	68,150	79,853
Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	17,130	20,356
Recurring [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]
Total	36,274	73,042
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	55,195	45,309
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	27	249
Total	27	249
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	6,129	13,139
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	60	5,003
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	30,145	59,903
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	38,005	19,950
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	$ 17,130	$ 20,356

Fair Value of Financial Instr36

Fair Value of Financial Instruments - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair value, discount rate	12.00%

Fair Value of Financial Instr37

Fair Value of Financial Instruments - Reconciliation of Beginning and Ending Level 3 Liability (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2015USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance beginning of period	$ 249
Additions to Level 3	0
Payments	(226)
Change in fair value of contingent consideration liability	4
Balance end of period	27
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance beginning of period	249
Balance end of period	$ 27

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($)	Sep. 05, 2014	Aug. 27, 2014	Mar. 07, 2014	Mar. 31, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Business Acquisition [Line Items]
Contingent consideration liability						$ 27,000		$ 249,000
Contingent payments						226,000
Deferred income tax assets						5,372,000		5,403,000
Deferred tax asset related to operating losses						9,218,000		$ 9,280,000
Acquisition-related costs					$ 300,000		$ 400,000
BBA, Inc., "Meldium" [Member]
Business Acquisition [Line Items]
Cash purchase price		$ 10,637,000
Contingent consideration liability		$ 4,600,000
Maturity period for contingent payment		2 years
Contingent payments						2,000,000
Range of contingent payments, Minimum						0
Range of contingent payments, Maximum						4,300,000
Deferred tax liability, intangible assets						700,000
Deferred income tax assets						100,000
Deferred tax asset related to operating losses						400,000
BBA, Inc., "Meldium" [Member] | Non-Employee Stockholder [Member]
Business Acquisition [Line Items]
Contingent consideration liability						216,000
Range of contingent payments, Minimum						0
Range of contingent payments, Maximum						226,000
Zamurai Corporation, A San Francisco, California-based Collaboration Software Provider [Member]
Business Acquisition [Line Items]
Cash purchase price	$ 4,500,000
Contingent consideration liability	$ 1,500,000
Maturity period for contingent payment	2 years
Range of contingent payments, Minimum						0
Range of contingent payments, Maximum						1,500,000
Deferred tax liability, intangible assets						400,000
Deferred tax asset related to operating losses						400,000
Zamurai Corporation, A San Francisco, California-based Collaboration Software Provider [Member] | Non-Employee Stockholder [Member]
Business Acquisition [Line Items]
Contingent consideration liability						24,000
Range of contingent payments, Minimum						0
Range of contingent payments, Maximum						30,000
Ionia Corp [Member]
Business Acquisition [Line Items]
Cash purchase price			$ 7,500,000
Contingent consideration liability			$ 4,000,000
Maturity period for contingent payment			2 years
Contingent payments				$ 2,000,000
Range of contingent payments, Minimum						0
Range of contingent payments, Maximum						4,000,000
Deferred tax liability, intangible assets						$ 700,000

Acquisitions - Purchase Price A

Acquisitions - Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Sep. 05, 2014	Aug. 27, 2014	Mar. 07, 2014	Sep. 30, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill				$ 37,928	$ 37,928
Ionia Corp [Member]
Business Acquisition [Line Items]
Cash			$ 67
Current assets			296
Other assets			26
Deferred revenue			(70)
Other liabilities			(864)
Goodwill			6,295
Total purchase price			7,500
Cash paid			7,500
Ionia Corp [Member] | Customer Backlog [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets			120
Ionia Corp [Member] | Trade Name and Trademark [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets			10
Ionia Corp [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets			1,340
Ionia Corp [Member] | Documented Know-how [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets			$ 280
BBA, Inc., "Meldium" [Member]
Business Acquisition [Line Items]
Cash		$ 120
Current assets		90
Other assets		436
Deferred revenue		(5)
Other liabilities		(935)
Goodwill		9,437
Total purchase price		10,853
Liability for contingent consideration		(216)
Cash paid		10,637
BBA, Inc., "Meldium" [Member] | Trade Name and Trademark [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets		30
BBA, Inc., "Meldium" [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets		100
BBA, Inc., "Meldium" [Member] | Completed Technology [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets		$ 1,580
Zamurai Corporation, A San Francisco, California-based Collaboration Software Provider [Member]
Business Acquisition [Line Items]
Cash	$ 2
Current assets	13
Other assets	404
Other liabilities	(439)
Goodwill	3,484
Total purchase price	4,524
Liability for contingent consideration	(24)
Cash paid	4,500
Zamurai Corporation, A San Francisco, California-based Collaboration Software Provider [Member] | Trade Name and Trademark [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets	100
Zamurai Corporation, A San Francisco, California-based Collaboration Software Provider [Member] | Completed Technology [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets	$ 960

Goodwill and Intangible Asset40

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Changes in carrying amount of goodwill			$ 0
Internally developed software	$ 500,000	$ 400,000	2,200,000	$ 1,300,000
Total amortization of intangible assets	$ 1,300,000	$ 1,200,000	$ 3,800,000	$ 3,700,000
Minimum [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			8 years
Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Intellectual property acquired			$ 200,000

Goodwill and Intangible Asset41

Goodwill and Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 34,906	$ 32,473
Accumulated Amortization	17,284	13,490
Net Carrying Amount	17,622	18,983
Trade Name and Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	806	806
Accumulated Amortization	775	682
Net Carrying Amount	31	124
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,229	5,229
Accumulated Amortization	3,120	2,546
Net Carrying Amount	2,109	2,683
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	907
Accumulated Amortization	632	507
Net Carrying Amount	283	400
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	17,104	16,903
Accumulated Amortization	6,072	3,981
Net Carrying Amount	11,032	12,922
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	110	57
Net Carrying Amount	170	223
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	162	162
Accumulated Amortization	104	71
Net Carrying Amount	58	91
Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,815	4,591
Accumulated Amortization	2,876	2,051
Net Carrying Amount	$ 3,939	$ 2,540
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	4 months
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	8 years
Maximum [Member] | Trade Name and Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		5 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		8 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 Asset42

Goodwill and Intangible Assets - Future Estimated Amortization Expense (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2015 (Three months ending December 31)	$ 1,430
2,016	5,388
2,017	5,047
2,018	4,069
2,019	1,138
Thereafter	550
Net Carrying Amount	$ 17,622	$ 18,983

Accrued Liabilities - Summary o

Accrued Liabilities - Summary of Accrued Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Marketing programs	$ 4,862	$ 7,626
Payroll and payroll related	12,939	14,873
Professional fees	2,521	1,961
Other accrued liabilities	7,495	5,022
Total accrued liabilities	$ 27,817	$ 29,482

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Effective tax rate	25.00%	22.00%	22.00%	20.00%
Provision for income taxes	$ 1,809,000	$ 636,000	$ 2,355,000	$ 1,138,000
Income before income taxes	7,372,000	$ 2,944,000	$ 10,678,000	$ 5,780,000
U.S. federal statutory rate			35.00%	35.00%
Uncertain tax positions	$ 700,000		$ 700,000		$ 700,000
Interest expense			$ 0	$ 1,000

Common Stock and Equity - Addit

Common Stock and Equity - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Oct. 20, 2014	Aug. 13, 2013
Class of Stock [Line Items]
Number of shares repurchased	0	432,832	249,400	627,843
Average price of repurchased shares		$ 44.11	$ 59.07	$ 41.48
Total cost of shares repurchased		$ 19,100,000	$ 14,700,000	$ 26,000,000
Amount available under share repurchase program	$ 59,700,000		$ 59,700,000
Repurchase Program One [Member]
Class of Stock [Line Items]
Share repurchase program						$ 50,000,000
Increased Repurchase Program Two [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	May. 21, 2015	Aug. 31, 2015	May. 31, 2015	May. 31, 2014	Aug. 31, 2013	Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in shares available to grant	1,300,000
Shares available for grant						2,569,555	2,569,555
Requisite service period of compensation expense							4 years
Fair value of common stock						$ 68.16	$ 68.16	$ 49.34
Unrecognized share-based compensation cost						$ 60.2	$ 60.2
Share-based compensation cost not yet recognized period for recognition							2 years 2 months 12 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
Requisite service period of compensation expense							3 years
Number of restricted stock units, granted						153,005	804,235
Market Based Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock units, granted			85,000	71,000	74,000
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
Total shareholder return shares, percentage			0.00%	0.00%	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
Total shareholder return shares, percentage			200.00%	200.00%	200.00%
Total shareholder return shares			170,000	142,000	148,000
Market Based TSR Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shareholder return shares, percentage		200.00%
Number of total shareholder return units, issued		54,000
Market Based TSR Units [Member] | August 2013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shareholder return shares, expected to be forfeited						20,000	20,000
Market Based TSR Units [Member] | May 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shareholder return shares, expected to be forfeited						42,000	42,000
Market Based TSR Units [Member] | May 2015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shareholder return shares, expected to be forfeited						25,000	25,000

Stock Incentive Plan - Summary

Stock Incentive Plan - Summary of Assumptions to Apply Black-Scholes Option-Pricing Model (Detail) - Stock Options [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Risk-free interest rate				1.48%
Expected term (in years)				6 years 3 months
Volatility				55.00%

Stock Incentive Plan - Summar48

Stock Incentive Plan - Summary of Assumptions to Apply Black-Scholes Option-Pricing Model (Parenthetical) (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted			0
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted	0	0	0

Stock Incentive Plan - Summar49

Stock Incentive Plan - Summary of Stock Option Activity (Detail) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015USD ($)$ / sharesshares	Dec. 31, 2014USD ($)$ / sharesshares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of shares, Outstanding, Beginning balance	1,407,000
Number of shares, Granted	0
Number of shares, Exercised	(499,000)
Number of shares, Forfeited	(21,000)
Number of shares, Outstanding, Ending balance	887,000	1,407,000
Number of shares, Exercisable, Ending balance	689,000	957,000
Weighted Average Exercise Price, Outstanding, Beginning balance | $ / shares	$ 30.02
Weighted Average Exercise Price, Granted | $ / shares	0
Weighted Average Exercise Price, Exercised | $ / shares	30.56
Weighted Average Exercise Price, Forfeited | $ / shares	32.78
Weighted Average Exercise Price, Outstanding, Ending balance | $ / shares	29.65	$ 30.02
Weighted Average Exercise Price, Exercisable, Ending balance | $ / shares	$ 29.18	$ 28.24
Weighted Average Remaining Contractual Term (Years), Outstanding	5 years 7 months 6 days	6 years 2 months 12 days
Weighted Average Remaining Contractual Term (Years), Exercisable	5 years 2 months 12 days	5 years 8 months 12 days
Aggregate Intrinsic Value, Outstanding, Beginning balance | $	$ 27,186
Aggregate Intrinsic Value, Exercised | $	14,419
Aggregate Intrinsic Value, Outstanding, Ending balance | $	34,160	$ 27,186
Aggregate Intrinsic Value, Exercisable, Ending balance | $	$ 26,858	$ 20,190

Stock Incentive Plan - Summar50

Stock Incentive Plan - Summary of Assumptions Used in Monte Carlo Simulation Model (Detail) - Market Based TSR Units [Member]	1 Months Ended
	May. 31, 2015	May. 31, 2014	Aug. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.93%	0.78%	0.62%
Volatility	50.00%	54.00%	54.00%

Stock Incentive Plan - Schedule

Stock Incentive Plan - Schedule of Restricted Stock Unit Activity Including Performance-based TSR Units (Detail) - Restricted Stock Units Rsu And Market Based Tsr Units [Member] shares in Thousands	9 Months Ended
	Sep. 30, 2015$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares Underlying Restricted Stock Units, Unvested, Beginning balance	1,279
Number of shares Underlying Restricted Stock Units, granted	889
Number of shares Underlying Restricted Stock Units, vested	(528)
Number of shares Underlying Restricted Stock Units, forfeited	(186)
Number of shares Underlying Restricted Stock Units, Unvested, Ending balance	1,454
Weighted Average Grant Date Fair Value, Beginning balance | $ / shares	$ 37.42
Weighted Average Grant Date Fair Value, granted | $ / shares	62.98
Weighted Average Grant Date Fair Value, vested | $ / shares	35.19
Weighted Average Grant Date Fair Value, forfeited | $ / shares	43.11
Weighted Average Grant Date Fair Value, Ending balance | $ / shares	$ 53.38

Stock Incentive Plan - Schedu52

Stock Incentive Plan - Schedule of Stock Based Compensation Allocated to Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 6,668	$ 6,270	$ 19,235	$ 18,421
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	314	295	1,132	804
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	1,193	863	4,051	2,647
Sales and Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	3,117	2,202	7,972	7,059
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 2,044	$ 2,910	$ 6,080	$ 7,911

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	Oct. 07, 2015USD ($)	May. 31, 2015USD ($)	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Dec. 31, 2014USD ($)Lease
Commitments And Guarantees [Line Items]
Minimum lease payments			$ 97,798,000				$ 97,798,000
Annual expected payments from tenant		$ 200,000
Rent expense under all leases			1,800,000			$ 1,800,000	5,700,000	$ 5,200,000
Hosting fees incurred			$ 1,800,000			$ 1,300,000	4,800,000	$ 3,700,000
Legal settlements					$ 3,600,000		$ 3,600,000
Settlement agreement one time fee				$ 8,300,000
Settlement agreement fee expected to be reimbursed				$ 4,700,000
Subsequent Event [Member]
Commitments And Guarantees [Line Items]
Settlement agreement one time fee	$ 25,000
Massachusetts [Member]
Commitments And Guarantees [Line Items]
Minimum lease payments									$ 47,000,000
Excess cost									7,000,000
Lease agreement security deposit									$ 3,300,000
Number of times lease may be extended | Lease									2
Additional lease term									5 years

Commitments and Contingencies54

Commitments and Contingencies - Schedule of Minimum Future Lease Payments Receivable (Detail) $ in Thousands	Sep. 30, 2015USD ($)
Leases [Abstract]
2015 (Three months ending December 31)	$ 2,947
2,016	10,943
2,017	10,361
2,018	10,402
2,019	9,840
Thereafter	53,305
Total minimum lease payments	97,798
Less: Sublease income	446
Total minimum lease payments, net	$ 97,352

Accumulated Other Comprehensi55

Accumulated Other Comprehensive Loss - Schedule of Changes in Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (4,319)	$ (4,535)	$ (3,117)
Other comprehensive income (loss)	(31)	216	(1,418)
Ending Balance	(4,350)	(4,319)	(4,535)
Unrealized Gain (Loss) on Marketable Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	17	32	(82)
Other comprehensive income (loss)	10	(15)	114
Ending Balance	27	17	32
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(4,336)	(4,567)	(3,035)
Other comprehensive income (loss)	(41)	231	(1,532)
Ending Balance	$ (4,377)	$ (4,336)	$ (4,567)

Accumulated Other Comprehensi56

Accumulated Other Comprehensive Loss - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2015USD ($)
Equity [Abstract]
Material reclassifications	$ 0

Credit Facility - Additional In

Credit Facility - Additional Information (Detail) - USD ($)	Feb. 18, 2015	Sep. 30, 2015	Oct. 14, 2015
Subsequent Event [Member]
Line of Credit Facility [Line Items]
Credit facility amount drawn			$ 60,000,000
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member]
Line of Credit Facility [Line Items]
Maximum amount of borrowing	$ 100,000,000
Line of credit facility, Initiation date	Feb. 18, 2015
Line of credit facility, expiration date	Feb. 18, 2020
Additional secured revolving credit facility subject to further commitment	$ 50,000,000
Credit facility amount drawn		$ 0
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Credit facility amount drawn			$ 60,000,000
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Non U S Dollar [Member]
Line of Credit Facility [Line Items]
Maximum amount of borrowing		$ 20,000,000
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Credit facility commitment fees		0.20%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Minimum [Member] | Eurodollar [Member]
Line of Credit Facility [Line Items]
Line of credit base rate borrowings		1.50%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Minimum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Line of credit base rate borrowings		0.50%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Minimum [Member] | Non U S Dollar [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Line of credit base rate borrowings		1.50%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Credit facility commitment fees		0.30%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Maximum [Member] | Eurodollar [Member]
Line of Credit Facility [Line Items]
Line of credit base rate borrowings		2.00%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Maximum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Line of credit base rate borrowings		1.00%
Revolving Credit Facility [Member] | Secured Debt [Member] | Multi Currency Credit Agreement [Member] | Maximum [Member] | Non U S Dollar [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Line of credit base rate borrowings		2.00%

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) $ in Thousands	Oct. 15, 2015USD ($)Employees	Oct. 14, 2015USD ($)	Sep. 30, 2015USD ($)	Dec. 31, 2014USD ($)
Subsequent Event [Line Items]
Contingent consideration liability			$ 27	$ 249
Subsequent Event [Member]
Subsequent Event [Line Items]
Credit facility amount drawn		$ 60,000
Subsequent Event [Member] | LastPass [Member]
Subsequent Event [Line Items]
Cash purchase price	$ 110,000
Contingent consideration liability	$ 15,000
Maturity period for contingent payment	2 years
Number of employees | Employees	30
Business combination revenue reported by acquired entity for last annual period	$ 9,600