LogMeIn (LOGM) 10-K20 Feb 152014 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
Document and Entity Information (USD $)	Dec. 31, 2014	Feb. 13, 2015	Jun. 30, 2014
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	LOGM
Entity Registrant Name	LogMeIn, Inc.
Entity Central Index Key	1420302
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		24,463,959
Entity Public Float			$872,638,381

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$100,960	$89,257
Marketable securities	100,209	100,299
Accounts receivable (net of allowance for doubtful accounts of $269 and $301 as of December 31, 2013 and December 31, 2014, respectively)	18,286	12,957
Prepaid expenses and other current assets	4,545	6,508
Restricted cash, current portion	1,492	23
Deferred income tax assets	5,403	3,053
Total current assets	230,895	212,097
Property and equipment, net	13,476	13,198
Restricted cash, net of current portion	2,531	3,902
Intangibles, net	18,983	16,886
Goodwill	37,928	18,712
Other assets	4,756	5,348
Deferred income tax assets	9,280	9,470
Total assets	317,849	279,613
Current liabilities:
Accounts payable	7,055	6,390
Accrued liabilities	29,482	20,110
Deferred revenue, current portion	101,672	82,496
Total current liabilities	138,209	108,996
Deferred revenue, net of current portion	3,578	2,667
Other long-term liabilities	2,218	611
Total liabilities	144,005	112,274
Commitments and contingencies (Note 11)
Preferred stock, $0.01 par value - 5,000,000 shares authorized, 0 shares outstanding as of December 31, 2013 and December 31, 2014
Equity:
Common stock, $0.01 par value - 75,000,000 shares authorized as of December 31, 2013 and December 31, 2014; 25,371,844 and 26,530,977 shares issued as of December 31, 2013 and December 31, 2014, respectively; 24,103,201 and 24,418,760 outstanding as of December 31, 2013 and December 31, 2014, respectively	267	254
Additional paid-in capital	237,203	200,235
(Accumulated deficit) retained earnings	6,516	-1,439
Accumulated other comprehensive loss	-3,117	-1,186
Treasury stock, at cost - 1,268,643 and 2,112,217 shares as of December 31, 2013 and December 31, 2014, respectively	-67,025	-30,525
Total equity	173,844	167,339
Total liabilities and equity	$317,849	$279,613

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$301	$269
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	26,530,977	25,371,844
Common stock, shares outstanding	24,418,760	24,103,201
Treasury stock, shares	2,112,217	1,268,643

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement [Abstract]
Revenue	$221,956	$166,258	$138,837
Cost of revenue	28,732	18,816	14,504
Gross profit	193,224	147,442	124,333
Operating expenses
Research and development	33,516	29,023	26,361
Sales and marketing	119,508	88,794	70,058
General and administrative	30,526	29,181	21,338
Legal Settlements		1,688
Amortization of acquired intangibles	987	682	565
Total operating expenses	184,537	149,368	118,322
Income (loss) from operations	8,687	-1,926	6,011
Interest income, net	602	547	887
Other (expense) income	105	-89	-641
Income (loss) before income taxes	9,394	-1,468	6,257
Provision for income taxes	-1,439	-6,214	-2,691
Net income (loss)	$7,955	($7,682)	$3,566
Net income (loss) per share:
Basic	$0.33	($0.32)	$0.14
Diluted	$0.31	($0.32)	$0.14
Weighted average shares outstanding:
Basic	24,385,297	24,350,913	24,711,242
Diluted	25,386,199	24,350,913	25,356,305

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net income (loss)	$7,955	($7,682)	$3,566
Other comprehensive gain (loss):
Net unrealized gains (losses) on marketable securities, net of tax	-107	-25	57
Net translation gains (losses)	-1,824	-761	1,100
Total other comprehensive gain (loss)	-1,931	-786	1,157
Comprehensive income (loss)	$6,024	($8,468)	$4,723

Consolidated_Statements_of_Equ

Consolidated Statements of Equity (USD $)	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]
In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]
Balance at Jan. 01, 2012	$155,806	$246	$154,440	$2,677	($1,557)
Balance, shares at Jan. 01, 2012		24,551,641
Issuance of common stock upon exercise of stock options	2,681	2	2,679
Issuance of common stock upon exercise of stock options, shares		262,366
Income tax benefit from stock options exercises	6,635		6,635
Stock-based compensation	14,792		14,792
Net income (loss)	3,566			3,566
Unrealized gain (loss) on available-for-sale securities, net of tax	57				57
Cumulative translation adjustments	1,100				1,100
Balance at Dec. 31, 2012	184,637	248	178,546	6,243	-400
Balance, shares at Dec. 31, 2012		24,814,007
Issuance of common stock upon exercise of stock options	3,798	4	3,794
Issuance of common stock upon exercise of stock options, shares		373,761
Net issuance of common stock upon vesting of restricted stock units	-1,834	2	-1,836
Net issuance of common stock upon vesting of restricted stock units, shares		184,076
Income tax benefit from stock options exercises	17		17
Stock-based compensation	19,714		19,714
Treasury stock	-30,525					-30,525
Treasury stock, shares		-1,268,643
Net income (loss)	-7,682			-7,682
Unrealized gain (loss) on available-for-sale securities, net of tax	-25				-25
Cumulative translation adjustments	-761				-761
Balance at Dec. 31, 2013	167,339	254	200,235	-1,439	-1,186	-30,525
Balance, shares at Dec. 31, 2013		24,103,201
Issuance of common stock upon exercise of stock options	17,595	9	17,586
Issuance of common stock upon exercise of stock options, shares	859,000	858,988
Net issuance of common stock upon vesting of restricted stock units	-5,766	4	-5,770
Net issuance of common stock upon vesting of restricted stock units, shares		300,145
Income tax benefit from stock options exercises	383		383
Stock-based compensation	24,769		24,769
Treasury stock	-36,500					-36,500
Treasury stock, shares		-843,574
Net income (loss)	7,955			7,955
Unrealized gain (loss) on available-for-sale securities, net of tax	-107				-107
Cumulative translation adjustments	-1,824				-1,824
Balance at Dec. 31, 2014	$173,844	$267	$237,203	$6,516	($3,117)	($67,025)
Balance, shares at Dec. 31, 2014		24,418,760

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net income (loss)	$7,955	($7,682)	$3,566
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	11,137	7,704	6,100
Amortization of premium on investments	224	198	54
Provision for bad debts	102	116	100
Gain on sales of marketable securities	-5
(Benefit from) provision for deferred income taxes	-2,707	926	-831
Income tax benefit from the exercise of stock options	-383	-17	-6,635
Stock-based compensation	24,769	19,714	14,792
Loss on disposal of equipment	26		12
Changes in assets and liabilities:
Accounts receivable	-5,804	302	-4,471
Prepaid expenses and other current assets	1,822	-2,986	-1,070
Other assets	476	-3,764	-1,308
Accounts payable	1,727	-2,233	1,552
Accrued liabilities	9,234	3,457	5,854
Deferred revenue	23,983	14,493	10,960
Other long-term liabilities	1,597	-208	-418
Net cash provided by operating activities	74,153	30,020	28,257
Cash flows from investing activities
Purchases of marketable securities	-95,342	-90,376	-135,085
Proceeds from maturities of marketable securities	75,000	90,000	130,000
Proceeds from sale of marketable securities	20,045
Purchases of property and equipment	-7,471	-10,938	-5,277
Intangible asset additions	-2,529	-13,061	-1,049
Cash paid for acquisition, net of cash acquired	-22,449		-14,831
(Increase) decrease in restricted cash and deposits	-196	7	-3,558
Net cash used in investing activities	-32,942	-24,368	-29,800
Cash flows from financing activities
Proceeds from issuance of common stock upon option exercises	17,595	3,798	2,682
Income tax benefit from the exercise of stock options	383	17	6,634
Payment of contingent consideration		-104	-89
Common stock withheld to satisfy income tax withholdings for restricted stock unit vesting	-5,766	-1,834
Purchase of treasury stock	-36,500	-30,525
Net cash provided by (used in) financing activities	-24,288	-28,648	9,227
Effect of exchange rate changes on cash and cash equivalents and restricted cash	-5,220	321	644
Net increase (decrease) in cash and cash equivalents	11,703	-22,675	8,328
Cash and cash equivalents, beginning of period	89,257	111,932	103,604
Cash and cash equivalents, end of period	100,960	89,257	111,932
Supplemental disclosure of cash flow information
Cash paid for interest	2	2
Cash paid for income taxes	1,489	10,094	1,802
Noncash investing and financing activities
Purchases of property and equipment included in accounts payable and accrued liabilities	1,032	1,510	742
Fair value of contingent consideration in connection with acquisition included in accrued liabilities and other long term liabilities	249		161
Deferred financing costs included in accounts payable and accrued liabilities	$13

Nature_of_the_Business

Nature of the Business	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Nature of the Business	1	Nature of the Business
	LogMeIn, Inc. (the “Company”) provides a portfolio of cloud-based service offerings which make it possible for people and businesses to simply and securely connect to their workplace, colleagues and customers. The Company’s product line includes AppGuru™, BoldChat^® , Cubby™, join.me^® , LogMeIn Pro^® , LogMeIn ^® Central™, LogMeIn Rescue^®, LogMeIn^® Rescue+Mobile™, LogMeIn Backup^®, LogMeIn for iOS, LogMeIn Hamachi^®, Meldium^TM, Xively™ and RemotelyAnywhere^®. The Company is headquartered in Boston, Massachusetts with wholly-owned subsidiaries located in Hungary, The Netherlands, Australia, the United Kingdom, Brazil, Bermuda, Japan, Ireland, and India.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
Summary of Significant Accounting Policies	Dec. 31, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2	Summary of Significant Accounting Policies

	Principles of Consolidation — The accompanying consolidated financial statements include the results of operations of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. The Company has prepared the accompanying consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”).

	Use of Estimates — The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. By their nature, estimates are subject to an inherent degree of uncertainty. Actual results could differ from those estimates.

	Cash Equivalents — Cash equivalents consist of highly liquid investments with an original or remaining maturity of less than three months at the date of purchase. Cash equivalents consist of investments in money market funds which primarily invest in U.S. Treasury obligations. Cash equivalents are stated at cost, which approximates fair value.

	Marketable Securities — The Company’s marketable securities are classified as available-for-sale and are carried at fair value with the unrealized gains and losses, net of tax, reported as a component of accumulated other comprehensive loss in equity. Realized gains and losses and declines in value judged to be other than temporary are included as a component of earnings based on the specific identification method. Fair value is determined based on quoted market prices. At December 31, 2013 and 2014, marketable securities consisted of U.S. government agency securities and corporate bonds that have remaining maturities within two years and have an aggregate amortized cost of $100.3 million. The securities have an aggregate fair value of $100.3 million and $100.2 million, including $67,000 and $9,000 of unrealized gains and $28,000 and $138,000 of unrealized losses, at December 31, 2013 and 2014 respectively.

	Restricted Cash — In May 2013, $125,000 of restricted cash associated with the Company’s Woburn, Massachusetts office lease was returned to the Company in connection with the expiration of the lease. In April 2012, the Company entered into a lease for a new corporate headquarters located in Boston, Massachusetts. The lease required a security deposit of approximately $3.3 million in the form of an irrevocable standby letter of credit which is collateralized by a bank deposit in the amount of approximately $3.5 million or 105 percent of the security deposit. Such amounts are classified as restricted cash in the accompanying consolidated balance sheets. In addition, the Company has made security deposits for various other leased facilities, which are also classified as restricted cash.

	Accounts Receivable — The Company reviews accounts receivable on a periodic basis to determine if any receivables will potentially be uncollectible. Estimates are used to determine the amount of the allowance for doubtful accounts necessary to reduce accounts receivable to its estimated net realizable value. The estimates are based on an analysis of past due receivables, historical bad debt trends, current economic conditions, and customer specific information. After the Company has exhausted all collection efforts, the outstanding receivable balance relating to services provided is written off against the allowance and the balance related to services not yet delivered is charged as an offset to deferred revenue.



	Activity in the allowance for doubtful accounts was as follows (in thousands):



			December 31,
			2012			2013			2014
	Balance, beginning		$	109		$	180		$	269
	Provision for bad debt			100			116			102
	Uncollectible accounts written off			29			27			70

	Balance, ending		$	180		$	269		$	301


	Property and Equipment — Property and equipment are recorded at cost and depreciated using the straight-line method over the estimated useful lives of the related assets. Upon retirement or sale, the cost of the assets disposed of and the related accumulated depreciation are eliminated from the accounts, and any resulting gain or loss is reflected in the consolidated statements of operations. Expenditures for maintenance and repairs are charged to expense as incurred.

	Estimated useful lives of assets are as follows:



	Computer equipment and software			2 —3 years
	Office equipment			3 years
	Furniture and fixtures			5 years
	Leasehold Improvements			Shorter of lease term
	Leasehold Improvements			or estimated useful life

	Goodwill — Goodwill is the excess of the acquisition price over the fair value of the tangible and identifiable intangible net assets acquired. The Company does not amortize goodwill, but performs an impairment test of goodwill annually or whenever events and circumstances indicate that the carrying amount of goodwill may exceed its fair value. The Company operates as a single operating segment with one reporting unit and consequently evaluates goodwill for impairment based on an evaluation of the fair value of the Company as a whole. As of December 31, 2014, the fair value of the Company as a whole significantly exceeds the carrying amount of the Company. Through December 31, 2014, no impairments have occurred.

	Long-Lived Assets and Intangible Assets — The Company records intangible assets at their respective estimated fair values at the date of acquisition. Intangible assets are being amortized 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, which range from four months to eight years.

	The Company reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets, including intangible assets, may not be recoverable. When such events occur, the Company compares the carrying amounts of the assets to their undiscounted expected future cash flows. If this comparison indicates that there is impairment, the amount of the impairment is calculated as the difference between the carrying value and fair value. Through December 31, 2014, the Company recorded no material impairments.

	Revenue Recognition — The Company derives revenue primarily from subscription fees related to its LogMeIn premium services and to a lesser extent, the delivery of professional services, primarily related to its Xively business.

	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.

	The Company currently only offers free versions of its iPhone, iPad and Android software products. The Company had formerly sold these iPhone, iPad and Android software products as perpetually licensed software, the revenue from which was recognized when there was persuasive evidence of an arrangement, the product had been provided to the customer, the collection of the fee was probable, and the amount of fees to be paid by the customer was fixed or determinable.

	Revenues are reported net of applicable sales and use tax, value-added tax, and other transaction taxes imposed on the related transaction.

	Deferred Revenue — Deferred revenue primarily consists of billings and payments received in advance of revenue recognition. The Company primarily bills and collects payments from customers for products and services in advance on a monthly and annual basis. Deferred revenue to be recognized in the next twelve months is included in current deferred revenue, and the remaining amounts are included in long-term deferred revenue in the consolidated balance sheets.

	Concentrations of Credit Risk and Significant Customers — The Company’s principal credit risk relates to its cash, cash equivalents, marketable securities, restricted cash, and accounts receivable. Cash, cash equivalents, and restricted cash are deposited primarily with financial institutions that management believes to be of high-credit quality and custody of its marketable securities is with an accredited financial institution. To manage accounts receivable credit risk, the Company regularly evaluates the creditworthiness of its customers and maintains allowances for potential credit losses. To date, losses resulting from uncollected receivables have not exceeded management’s expectations.

	As of December 31, 2013 no customers accounted for more than 10% of accounts receivable and there were no customers that represented 10% or more of revenue for the years ended December 31, 2012, 2013, or 2014. As of December 31, 2014, one customer accounted for 15% of accounts receivable.

	Legal Costs — Legal expenditures are expensed as incurred.

Research and Development — Research and development expenditures are expensed as incurred.

Software Development Costs — The Company has determined that technological feasibility of its software products that are sold as a perpetual license is reached shortly before their introduction to the marketplace.

The Company capitalizes certain direct costs to develop functionality as well as certain upgrades and enhancements of its on-demand products that are probable to result in additional functionality. The costs incurred in the preliminary stages of development are expensed as incurred. Once an application has reached the development stage, internal and external costs, if direct and incremental, are capitalized as part of intangible assets until the software is substantially complete and ready for its intended use. Internally developed software costs that are capitalized are classified as intangible assets and amortized over a three year period.

Foreign Currency Translation — The functional currency of operations outside the United States of America is deemed to be the currency of the local country, unless otherwise determined that the United States dollar would serve as a more appropriate functional currency given the economic operations of the entity. Accordingly, the assets and liabilities of the Company’s foreign subsidiaries are translated into United States dollars using the period-end exchange rate, and income and expense items are translated using the average exchange rate during the period. Cumulative translation adjustments are reflected as a separate component of equity. Foreign currency transaction gains and losses are charged to operations. The Company had foreign currency losses of approximately $641,000, and $89,000 for the years ended December 31, 2012 and 2013, and Foreign currency gains of approximately $105,000 for the year ended December 31 2014 included in other (expense) income in the consolidated statements of operations.

Stock-Based Compensation — The Company values all stock-based compensation, including grants of stock options and restricted stock units, at fair value on the date of grant and recognizes the expense over the requisite service period, which is generally the vesting period of the award, for those awards expected to vest, on a straight-line basis. The Company uses the with-or-without method to determine when it will realize excess tax benefits from stock based compensation. Under this method, the Company will realize these excess tax benefits only after it realizes the tax benefits of net operating losses from operations.

Income Taxes — Deferred income taxes are provided for the tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes, and operating loss carry-forwards and credits using enacted tax rates expected to be in effect in the years in which the differences are expected to reverse. At each balance sheet date, the Company assesses the likelihood that deferred tax assets will be realized, and recognizes a valuation allowance if it is more likely than not that some portion of the deferred tax assets will not be realized. This assessment requires judgment as to the likelihood and amounts of future taxable income by tax jurisdiction.

The Company evaluates its uncertain tax positions based on a determination of whether and how much of a tax benefit taken by the Company in its tax filings is more likely than not to be realized. Potential interest and penalties associated with any uncertain tax positions are recorded as a component of income tax expense. As of December 31, 2014, the Company has provided a liability for approximately $652,000 for uncertain tax positions. These uncertain tax positions would impact the Company’s effective tax rate if recognized.

Advertising Costs — The Company expenses advertising costs as incurred. Advertising expense for the years ended December 31, 2012, 2013, and 2014 was approximately $23.8 million, $27.8 million, and $36.8 million respectively, which consisted primarily of online paid searches, banner advertising, and other online marketing and is included in sales and marketing expense in the accompanying consolidated statements of operations.

Comprehensive Income (Loss) — Comprehensive income (loss) is the change in stockholders’ equity during a period relating to transactions and other events and circumstances from non-owner sources and currently consists of net income, foreign currency translation adjustments, and unrealized gains and losses, net of tax on available-for-sale securities. Accumulated comprehensive loss was approximately $1.2 million at December 31, 2013 and consisted of $1.2 million related to foreign currency translation adjustments offset by $25,000 of unrealized losses, net of tax on available-for sale securities. Accumulated comprehensive income was approximately $3.1 million at December 31, 2014 and consisted of $3.0 million related to foreign currency translation adjustments in addition to $82,000 in unrealized losses, net of tax on available-for sale securities.

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.

Segment Data — Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision-maker, or decision making group, in making decisions regarding resource allocation and assessing performance. The Company, which uses consolidated financial information in determining how to allocate resources and assess performance, has determined that it operates in one segment.



The Company’s revenue (based on customer address) and long-lived assets by geography are as follows (in thousands):



		Years Ended December 31,
		2012			2013			2014
Revenues:
United States		$	90,233		$	109,444		$	148,532
United Kingdom			12,846			15,058			19,452
International — all other			35,758			41,756			53,972

Total revenue		$	138,837		$	166,258		$	221,956

Long-lived assets:
United States		$	4,129		$	10,207		$	9,731
Hungary			1,599			1,224			2,018
Ireland			234			1,057			1,139
International — all other			614			710			588

Total long-lived assets		$	6,576		$	13,198		$	13,476


Net Income (Loss) Per Share — Basic net income (loss) per share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted net income (loss) per share is computed by dividing net income (loss) by the sum of the weighted average number of common shares outstanding during the period and the weighted average number of potential common shares outstanding from the assumed exercise of stock options and the vesting of restricted stock units. For the year ended December 31, 2013, the Company incurred a net loss and therefore, the effect of the Company’s outstanding common stock equivalents were not included in the calculation of diluted loss per share as they were anti-dilutive. Accordingly, basic and dilutive net loss per share for each period were identical.

The Company excluded the following options to purchase common shares and restricted stock units from the computation of diluted net income (loss) per share either because they had an anti-dilutive impact or because the Company had a net loss in the period (in thousands):



		Years Ended December 31,
		2012			2013			2014
Options to purchase common shares			1,679			2,389			57
Restricted stock units			147			1,192			18

Total options and restricted stock units			1,826			3,581			75




Basic and diluted net income per share was calculated as follows (in thousands, except share and per share data):



		Year Ended
		December 31, 2012
Basic:
Net income		$	3,566

Weighted average common shares outstanding, basic			24,711,242

Net income, basic		$	0.14


Diluted:
Net income		$	3,566

Weighted average common shares outstanding			24,711,242
Add: Options to purchase common shares and restricted stock units			645,063

Weighted average common shares outstanding, diluted			25,356,305

Net income, diluted		$	0.14




		Year Ended
		December 31, 2013
Basic and Diluted Net Loss per Share:
Net loss		$	(7,682	)

Weighted average common shares outstanding			24,350,913

Basic and diluted net loss per share		$	(0.32	)




		Year Ended
		December 31, 2014
Basic:
Net income		$	7,955

Weighted average common shares outstanding, basic			24,385,297

Net income, basic		$	0.33


Diluted:
Net income		$	7,955

Weighted average common shares outstanding			24,385,297
Add: Options to purchase common shares and restricted stock units			1,000,902

Weighted average common shares outstanding, diluted			25,386,199

Net income, diluted		$	0.31


Guarantees and Indemnification Obligations — As permitted under Delaware law, the Company has agreements whereby the Company indemnifies certain of its officers and directors for certain events or occurrences while the officer or director is, or was, serving at the Company’s request in such capacity. The term of the indemnification period is for the officer’s or director’s lifetime. As permitted under Delaware law, the Company also has similar indemnification obligations under its certificate of incorporation and by-laws. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has director’s and officer’s insurance coverage that the Company believes limits its exposure and enables it to recover a portion of any future amounts paid.



The Company has entered into agreements with certain customers that contractually obligate the Company to indemnify the customer from certain claims, including 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 unlimited. Through December 31, 2014, the Company has not experienced any losses related to these indemnification obligations.

In November 2012, the Company filed suit against Pragmatus Telecom LLC (“Pragmatus”), seeking declaratory judgment after certain of the Company’s customers received letters from Pragmatus claiming that their use of certain LogMeIn services infringed upon three patents allegedly owned by Pragmatus. On March 29, 2013, the Company and Pragmatus entered into a License Agreement, which granted the Company a fully-paid license covering the patents at issue. The Company paid Pragmatus a one-time licensing fee in April 2013, after a portion of the fee was reimbursed in March 2013 from a designated escrow arrangement associated with a prior acquisition. The Company recorded approximately $1.2 million of expense related to this matter in general and administrative expenses in March 2013. As a result, the Company’s declaratory judgment action against Pragmatus was dismissed by the court on May 3, 2013.

Recently Issued Accounting Pronouncements — On May 28, 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”), its final standard on revenue from contracts with customers. ASU 2014-9 outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the revenue model to contracts within its scope, an entity identifies the contract(s) with a customer, identifies the performance obligations in the contract, determines the transaction price, allocates the transaction price to the performance obligations in the contract and recognizes revenue when (or as) the entity satisfies a performance obligation. ASU 2014-09 applies to all contracts with customers that are within the scope of other topics in the FASB Accounting Standards Codification. Certain of ASU 2014-09’s provisions also apply to transfers of nonfinancial assets, including in-substance nonfinancial assets that are not an output of an entity’s ordinary activities (i.e., property plant and equipment; real estate; or intangible assets). Existing accounting guidance applicable to these transfers has been amended or superseded. ASU 2014-09 also requires significantly expanded disclosures about revenue recognition. ASU 2014-09 is effective for the Company on January 1, 2017. The Company is currently assessing the potential impact of the adoption of ASU 2014-09 on its consolidated financial statements.

On June 19, 2014, the FASB issued ASU 2014-12, Stock Compensation (“ASU 2014-12”), providing guidance on accounting for share-based payment awards when the terms of an award provide that a performance target could be achieved after the requisite service period. The update clarifies that performance targets that can be achieved after the requisite service period of a share-based payment award be treated as performance conditions that affect vesting. These awards should be accounted for under Accounting Standards Codification Topic 718, Compensation — Stock Compensation, and existing guidance should be applied as it relates to awards with performance conditions that affect vesting. The update is effective for the Company for the interim and annual periods beginning after December 15, 2015. The Company is currently evaluating the impact of the adoption of this standard, if any, on its consolidated financial statements.

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 (“ASU 2014-15”). The standard requires that the Company evaluates, at each interim and annual reporting period, whether there are conditions or events that raise substantial doubt about its ability to continue as a going concern within one year after the date the financial statements are issued, and provide related disclosures. ASU 2014-15 is effective for annual periods ending after December 15, 2016, and for annual and interim periods thereafter, and early adoption is permitted. The Company does not expect to early adopt ASU 2014-15, which will be effective for its fiscal year ending December 31, 2016. The Company does not believe the standard will have a material impact on its financial statements.

On January 9, 2015, the FASB issued ASU 2015-01, Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items (“ASU 2015-01”). The standard eliminates the requirement of Extraordinary Items to be separately classified on the income statement. ASU 2015-01 is effective for annual periods ending after December 15, 2015, and for annual and interim periods thereafter, and early adoption is permitted. The Company does not expect to early adopt ASU 2015-01, which will be effective for its fiscal year ending December 31, 2016. The Company does not believe the standard will have a material impact on its consolidated financial statements.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
Fair Value of Financial Instruments	Dec. 31, 2014
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, 2013 Using
			Level 1			Level 2		Level 3		Total
	Financial Assets:
	Cash equivalents — money market funds		$	28,210		$	—	$	—	$	28,210
	Cash equivalents — bank deposits			—			5,001		—		5,001
	Short-term marketable securities — U.S. government agency securities			75,288			25,011		—		100,299

	Total		$	103,498		$	30,012	$	—	$	133,510



			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

	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 Meldium and the September 5, 2014 acquisition of a San Francisco-based collaboration software provider. 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. The current portion of contingent consideration is included in Accrued liabilities and the non-current portion is included in Other long-term liabilities. A reconciliation of the beginning and ending Level 3 liability is as follows (in thousands):


			Years Ended
			December 31,
			2013			2014
	Balance beginning of period		$	161		$	—
	Additions to Level 3			—			239
	Payments			(178	)		—
	Change in fair value of contingent consideration liability			17			10

	Balance end of period		$	—		$	249

Acquisitions

Acquisitions	12 Months Ended
Acquisitions	Dec. 31, 2014
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 operating results, which are comprised of approximately $2.1 million of revenue, as well as $5.4 million of expenses for the year ended December 31, 2014, are included in the condensed consolidated financial statements beginning on the acquisition date.

	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 pro forma results of operations for the years ended December 31, 2013 and 2014, assuming the Company had acquired Ionia on January 1, 2013, do not differ materially from those reported in the Company’s consolidated statement of operations for those years.

	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 Company expects to pay $2.0 million in March 2015 and the remainder in March 2016.

	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 $700,000 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, a San Francisco, California-based provider of single sign-on password management software, through a merger transaction for a cash purchase price of $10.6 million plus contingent bonuses totaling up to $4.6 million, which are expected to be paid over a two-year period from the date of acquisition. Meldium’s operating results, which are comprised of approximately $1.8 million of expenses during the year ended December 31, 2014, are included in the condensed consolidated financial statements beginning on the acquisition date.

	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 Company’s pro forma results of operations for the year ended December 31, 2013 and 2014, assuming the Company had acquired Meldium on January 1, 2013, do not differ materially from those reported in the Company’s consolidated statement of operations for those years.

	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 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 Company paid approximately $1.0 million of contingent payments in February 2015.

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 approximately $88,000 and $433,000, 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 approximately $694,000 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 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. The acquired company’s operating results, which are comprised of approximately $490,000 of expenses during the year ended December 31, 2014 are included in the consolidated financial statements beginning on the acquisition date.

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 Company’s pro forma results of operations for the year ended December 31, 2013 and 2014, assuming the Company had acquired the San Francisco, California-based collaboration software company on January 1, 2013, do not differ materially from those reported in the Company’s consolidated statement of operations for those years.

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 approximately $402,000 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 approximately $430,000 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.

For the year ended December 31, 2014, the Company incurred approximately $356,000 of acquisition-related costs for the three acquisitions that closed in 2014 and these costs are included in general and administrative expense.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	12 Months Ended
Goodwill and Intangible Assets	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	5	Goodwill and Intangible Assets

	The changes in the carrying amounts of goodwill for the years ended December 31, 2013 and 2014 are due to the addition of goodwill resulting from the acquisitions of Ionia, Meldium and the San Francisco-based collaboration software provider (See Note 4 to the Consolidated Financial Statements).

	Changes in goodwill for the years ended December 31, 2013 and 2014 are as follows (in thousands):



	Balance, December 31, 2012		$	18,883
	Foreign currency translation adjustments			(171	)

	Balance, December 31, 2013		$	18,712
	Goodwill related to the acquisition of Ionia			6,295
	Goodwill related to the acquisition of Meldium			9,437
	Goodwill related to the acquisition of the San Francisco-based collaboration software provider			3,484

	Balance, December 31, 2014		$	37,928




	Intangible assets consist of the following (in thousands):



						December 31, 2013						December 31, 2014
			Estimated			Gross		Accumulated		Net		Gross		Accumulated		Net
			Useful			Carrying		Amortization		Carrying		Carrying		Amortization		Carrying
			Life			Amount				Amount		Amount				Amount
	Identifiable intangible assets:
	Trade names and trademarks			1-5 years		$	666	$	666	$	—	$	806	$	682	$	124
	Customer relationships			5-8 years			3,789		1,901		1,888		5,229		2,546		2,683
	Customer backlog			4 months			—		—		—		120		120		—
	Domain names			5 years			894		341		553		907		507		400
	Software			4 years			299		299		—		299		299		—
	Completed technology			3-8 years			13,963		1,835		12,128		16,903		3,981		12,922
	Technology and know-how			3 years			3,176		2,597		579		3,176		3,176		—
	Documented know-how			4 years			—		—		—		280		57		223
	Non-Compete agreements			5 years			162		34		128		162		71		91
	Internally developed software			3 years			2,485		875		1,610		4,591		2,051		2,540

						$	25,434	$	8,548	$	16,886	$	32,473	$	13,490	$	18,983


	As a result of the acquisition of Ionia, the Company capitalized $120,000 of customer backlog, $280,000 of documented know-how, $10,000 of trade name and trademark, and $1.3 million of customer relationships as intangible assets. As a result of the acquisition of Meldium, the Company capitalized $1.6 million of completed technology, $30,000 of trade name and trademark, and $100,000 of customer relationships. As a result of the acquisition of the San Francisco-based collaboration software provider, the Company capitalized $960,000 of completed technology and $100,000 of trade name and trademark. Changes in the gross carrying amount of domain names are due to foreign currency translation adjustments. 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.

	On November 6, 2013, the Company purchased a software asset for $11.5 million which is classified as technology. During 2014, the Company incurred an additional $500,000 to develop this technology. The technology will be incorporated into certain of the Company’s products, and is being amortized straight-line over its estimated useful life of 5 years.

	The Company capitalized costs related to internally developed computer software to be sold as a service incurred during the application development stage of $1.2 million and $2.1 million during 2013 and 2014, respectively, and is amortizing these costs over the expected lives of the related services. The Company paid $358,000 and $22,000 during 2013 and 2014, respectively, to acquire domain names.



	The Company is amortizing the intangible assets over the estimated useful lives noted above. Amortization expense for intangible assets was $2.1 million, $2.5 million and $4.9 million for the years ended December 31, 2012, 2013 and 2014, 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 tradename and trademark, customer base, customer backlog, domain names, and non-compete agreements is recorded within operating expenses. Future estimated amortization expense for intangible assets is as follows at December 31, 2014 (in thousands):



	Amortization Expense (Years Ending December 31)		Amount
	2015		$	5,037
	2016			4,609
	2017			4,270
	2018			3,435
	2019			1,096
	Thereafter			536

Total		$	18,983

Property_and_Equipment

Property and Equipment	12 Months Ended
Property and Equipment	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property and Equipment	6	Property and Equipment
	Property and equipment consisted of the following (in thousands):


			December 31,
			2013			2014
	Computer equipment and software		$	22,276		$	24,968
	Office equipment			3,235			3,624
	Furniture & fixtures			3,083			4,075
	Construction in progress			456			684
	Leasehold improvements			2,967			3,752

	Total property and equipment			32,017			37,103
	Less accumulated depreciation and amortization			(18,819	)		(23,627	)

	Property and equipment, net		$	13,198		$	13,476

	Depreciation expense for property and equipment was $4.0 million, $5.2 million and $6.2 million for the years ended December 31, 2012, 2013 and 2014.

Accrued_Liabilities

Accrued Liabilities	12 Months Ended
Accrued Liabilities	Dec. 31, 2014
Payables and Accruals [Abstract]
Accrued Liabilities	7	Accrued Liabilities
	Accrued liabilities consisted of the following (in thousands):


			December 31,		December 31,
			2013		2014
	Marketing programs		$	4,631	$	7,626
	Payroll and payroll related			9,719		14,873
	Professional fees			1,064		1,961
	Other accrued liabilities			4,696		5,022

	Total accrued liabilities		$	20,110	$	29,482

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	8	Income Taxes

	The domestic and foreign components of income before provision for income taxes are as follows (in thousands):



			Years Ended December 31,
			2012				2013			2014
	Domestic		$	7,789			$	10,389		$	(4,462	)
	Foreign			(1,532	)			(11,857	)		13,856

	Total income (loss) before provision for income taxes		$	6,257			$	(1,468	)	$	9,394


	The provision for income taxes is as follows (in thousands):



			Years Ended December 31,
			2012				2013			2014
	Current
	Federal		$	8,324			$	5,480		$	2,804
	State			1,181				1,346			1,184
	Foreign			126				952			1,052

	Total			9,631				7,778			5,040

	Deferred
	Federal			(4,926	)			(1,379	)		(3,069	)
	State			44				(177	)		(748	)
	Foreign			(2,058	)			(8	)		216

	Total			(6,940	)			(1,564	)		(3,601	)

	Total provision for income taxes		$	2,691			$	6,214		$	1,439


	A reconciliation of the Company’s effective tax rate to the statutory federal income tax rate is as follows:



			For the Years Ended December 31,
			2012				2013			2014
	Statutory tax rate			35	%			35	%		35	%
	Change in valuation allowance			(10.8	)			—			—
	Impact of permanent differences			15.6				(82.3	)		16.2
	Foreign tax rate differential			(11.5	)			(346.9	)		(39.1	)
	Research and development credits			—				23.1			(2.6	)
	State taxes, net of federal benefit			13.8				(51.9	)		2.9
	Impact of uncertain tax positions			0.8				(3.6	)		3.8
	Other			0.1				3.4			(0.8	)

	Effective tax rate			43	%			(423.2	)%		15.4	%


	For the year ended December 31, 2012, the Company recorded a tax provision for income taxes of $2.7 million on profit before income taxes of $6.3 million. The Company recorded a provision as a result of taxable income generated in the United States. The Company’s effective tax rate for the year ended December 31, 2012 was impacted by permanent differences related to certain non-deductible stock based compensation and the release of a valuation allowance related to our Xively subsidiary.

	For the year ended December 31, 2013, the Company recorded a tax provision for income taxes of $6.2 million on a loss before income taxes of $1.5 million. The Company recorded a provision as a result of the taxable income generated in the United States, while certain foreign jurisdictions incurred losses before income taxes without related tax benefits. The Company’s effective tax rate for the year ended December 31, 2013 was impacted by these foreign losses and by permanent differences related to certain non-deductible and stock based compensation.



	For the year ended December 31, 2014, the Company recorded a tax provision for income taxes of $1.4 million on profit before income taxes of $9.4 million. The Company recorded a provision as a result of taxable income generated in the United States as well as in certain foreign jurisdictions. The Company’s effective tax rate for the year ended December 31, 2014 is lower than the U.S. federal statutory rate of 35% due to profits earned in certain foreign jurisdictions, primarily by our Irish subsidiaries, which are subject to significantly lower tax rates than the U.S. federal statutory rate.

	The Company has deferred tax assets related to temporary differences and operating loss carryforwards as follows (in thousands):



		December 31,
		2013				2014
Deferred tax assets:
Net operating loss carryforwards		$	2,375			$	2,783
Deferred revenue			627				775
Amortization			1,211				1,806
Research and development credit carryforwards			404				12
Bad debt reserves			56				79
Stock compensation associated with non-qualified awards			10,423				11,584
Accrued Bonus			1,530				3,579
Depreciation			326				171
Other			839				1,016

Total deferred tax assets			17,791				21,805
Deferred tax asset valuation allowance			(2,836	)			(2,203	)

Net deferred tax assets			14,955				19,602

Deferred tax liabilities:
Depreciation			(1,212	)			(1,234	)
Goodwill amortization			(1,236	)			(3,640	)
Other			(14	)			(45	)

Total deferred tax liabilities			(2,462	)			(4,919	)

Total		$	12,493			$	14,683


At December 31, 2013 and 2014, deferred tax liabilities of approximately $15,000 and $1,000 respectively, are included in accrued liabilities, and approximately $15,000 and $3,000 respectively, are included in long term liabilities.

Deferred tax assets, related valuation allowances, current tax liabilities, and deferred tax liabilities are determined separately by tax jurisdiction. In making these determinations, we estimate deferred tax assets, current tax liabilities, and deferred tax liabilities, and we assess temporary differences resulting from differing treatment of items for tax and accounting purposes. During 2012, the Company reassessed the need for a valuation allowance against its deferred tax assets relating to its Xively subsidiary and concluded that it was more likely than not that it would be able to realize its deferred tax assets as a result of forecasted future earnings. Accordingly, the Company reversed the valuation allowance related to its Xively deferred tax assets of approximately $677,000. As of December 31, 2014, the Company maintained a full valuation allowance against 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 valuation allowance decreased by approximately $633,000 primarily as a result of the expiration of research and development tax credits.

As of December 31, 2014, the Company had federal, state, and foreign net operating loss carryforwards of approximately $1,559,000, $1,551,000 and $21,480,000, respectively. The Company’s federal and state net operating loss carryforwards are subject to limitation under Section 382 of the Internal Revenue Code. As of December 31, 2014, all federal and state net operating loss carryforwards are expected to be utilized before expiration. The Company’s foreign net operating loss carryforwards are not subject to expiration. The Company recognized a full valuation allowance against its Hungarian net operating loss carryfowards.

As of December 31, 2014, the Company had federal, state and foreign research and development credit carryforwards of approximately $0, $12,000 and $0, respectively, which are available to offset future state taxes.

The Company generally considers all earnings generated outside of the U.S. to be indefinitely reinvested offshore. Therefore, the Company does not accrue U.S. tax for the repatriation of the foreign earnings it considers to be indefinitely reinvested outside the U.S. As of December 31, 2014, the Company has not provided for federal income tax on approximately $14,000,000 of accumulated undistributed earnings of its foreign subsidiaries. It is not practicable to estimate the amount of additional tax that might be payable on the undistributed foreign earnings.

The Company files income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. The statute of limitations in the Company’s various tax jurisdictions remain open for various periods between 2004 and the present.

As of December 31, 2013 and 2014, the Company has provided a liability of $304,000 and $652,000 respectively for uncertain tax positions. These uncertain tax positions would impact the Company’s effective tax rate if recognized.

The Company has provided liabilities for uncertain tax provisions as follows (in thousands):



		Years Ended
		December 31,
		2013				2014
Beginning balance		$	251			$	304
Gross decreases — tax positions in prior period			—				(56	)
Gross increases — tax positions in current period			53				404

Ending balance		$	304			$	652


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 approximately $4,000 and $15,000 of interest expense during the years ended December 31, 2013 and 2014, respectively.

Common_Stock_and_Equity

Common Stock and Equity	12 Months Ended
Common Stock and Equity	Dec. 31, 2014
Equity [Abstract]
Common Stock and Equity	9	Common Stock and Equity
	Authorized Shares — On June 9, 2009, the Company’s Board of Directors approved a Restated Certificate of Incorporation to be effective upon the closing of the Company’s IPO. This Restated Certificate of Incorporation, among other things, increased the Company’s authorized common shares to 75,000,000 and authorized 5,000,000 shares of undesignated preferred stock.
	Common Stock Reserved — As of December 31, 2013 and 2014, the Company has reserved the following number of shares of common stock for the exercise of stock options and restricted stock units (in thousands):


			Number of Shares as of
			December 31,		December 31,
			2013		2014
	Common stock options and restricted stock units			5,231		4,906

	Total reserved			5,231		4,906

	In February 2013, the Company’s board of directors approved a $25 million share repurchase program. On August 13, 2013, the board of directors approved a new $50 million share repurchase program, which replaced the previous $25 million share repurchase program. On October 20, 2014, the Board of Directors approved a new $75 million share repurchase program. This new share repurchase program is in addition to the Company’s existing $50 million share repurchase program. Share repurchases are made from time-to-time in the open market, in privately negotiated transactions or otherwise, in accordance with applicable securities laws and regulations. The timing and amount of any share repurchases are determined by the Company’s management based on its evaluation of market conditions, the trading price of the stock, regulatory requirements and other factors. The share repurchase program may be suspended, modified or discontinued at any time at the Company’s discretion without prior notice.
	During the year ended December 31, 2013 and 2014, the Company repurchased 1,268,643 and 843,574 shares of its common stock at an average price of $24.06 and $43.27 per share for a total cost of approximately $30.5 million and $36.5 million, respectively. At December 31, 2014, approximately $74.4 million remained available under the Company’s current share repurchase program.

Stock_Incentive_Plan

Stock Incentive Plan	12 Months Ended
Stock Incentive Plan	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Incentive Plan	10	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 service-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 there is a change in control. On May 22, 2014, the Company’s stockholders approved an amendment to the 2009 Plan that increased the shares available to grant under the plan by 1,200,000 shares. As of December 31, 2014, there were 2,220,348 shares available for grant under the 2009 Plan.

	The Company generally issues previously unissued shares of common stock for the exercise of stock options and restricted stock units. The Company received $2.7 million, $3.8 million and $17.6 million in cash from stock option exercises during the years ended December 31, 2012, 2013 and 2014, respectively.

	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 award, which is generally four years for options.

	The Company used the following assumptions to apply the Black-Scholes option-pricing model:



			Years Ended December 31,
			2012		2013		2014
	Expected dividend yield		0.00%		0.00%		0.00%
	Risk-free interest rate		0.64% - 0.87%		0.87 - 1.36%		1.48%
	Expected term (in years)		5.56 - 6.25		6.25		6.25
	Volatility		55% - 60%		55%		55%



	The following table summarizes stock option activity (shares and intrinsic value in thousands):



			Number				Weighted				Weighted		Aggregate
			of Options				Average				Average		Intrinsic
							Exercise				Remaining		Value
							Price				Contractual
											Term
											(Years)
	Outstanding, January 1, 2014			2,389			$	26.85				6.4

	Granted			35				41.03
	Exercised			(859	)			20.48					$	20,566

	Forfeited			(158	)			36.4

	Outstanding, December 31, 2014			1,407			$	30.02				6.2	$	27,186

	Exercisable at December 31, 2014			957			$	28.24				5.7	$	20,190

	Vested or expected to vest at December 31, 2014			1,389			$	30.05				6.2	$	26,805


	The aggregate intrinsic value was calculated based on the positive differences between the estimated fair value of the Company’s common stock on December 31, 2014 of $49.34 per share or at time of exercise, and the exercise price of the options.

	The weighted average grant date fair value of stock options issued was $18.57, $11.60 and $21.78 per share for the years ended December 31, 2012, 2013 and 2014, respectively.

	During the year ended December 31, 2014, the Company granted 633,696 restricted stock units, containing 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 and May 2014, the Company granted 74,000 and 71,000 restricted stock units with market-based vesting conditions, respectively, which were tied to the Company’s achievement of a relative total shareholder return target measured over an applicable performance period which ranges from two to three years (the “TSR Units”). The number of shares underlying these TSR Units that will vest upon the conclusion of the applicable performance periods can range from 0% of the shares awarded to 200% of the shares awarded, or up to 148,000 shares and 142,000 shares for the August 2013 grant and May 2014 grant, respectively. Vesting of such shares is also contingent upon the continued employment of the participant throughout the vesting period. 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. Compensation cost is recognized regardless of the actual number of awards that are earned based on the market condition. 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
	Risk-free interest rate			0.62	%			0.78	%
	Volatility			54	%			54	%

	Compensation cost is recognized on a straight-line basis over the requisite service period. At December 31, 2014, all of the TSR Units granted in August 2013 and May 2014 remain outstanding.



The following table summarizes all restricted stock unit activity, including performance-based restricted stock units (shares in thousands):



		Number of shares				Weighted Average
		Underlying Restricted				Grant Date
		Stock Units				Fair Value
Unvested as of January 1, 2014			1,192			$	28.47
Restricted stock units granted			705				44.63
Restricted stock units vested			(430	)			27.63
Restricted stock units forfeited			(188	)			30.1

Unvested as of December 31, 2014			1,279			$	37.42


The Company recognized stock-based compensation expense within the accompanying consolidated statements of operations as summarized in the following table (in thousands):



		Years Ended December 31,
		2012				2013				2014
Cost of revenue		$	484			$	706			$	1,107
Research and development			2,826				3,761				3,653
Sales and marketing			4,962				7,242				9,033
General and administrative			6,520				8,005				10,976

		$	14,792			$	19,714			$	24,769


As of December 31, 2014, there was approximately $37.3 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 1.9 years. The total unrecognized share-based compensation cost will be adjusted for future changes in estimated forfeitures.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	11	Commitments and Contingencies

	Operating Leases — The Company has operating lease agreements for offices in the United States, Hungary, Australia, the United Kingdom, Ireland and India that expire through 2028.

	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 $47.0 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 $7.0 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 December 2014, the Company entered into a lease for new office space in San Francisco, California. The term of the new office space begins in February 2015 and extends through December 2019. The aggregate amount of minimum lease payments to be made over the term of the lease is approximately $2.4 million. The lease required a security deposit of approximately $41,000. The security deposit is classified as a long-term deposit.

	In October 2014, the Company entered into a lease for new office space in Dublin, Ireland. The term of the new office space began in October 2014 and extends through September 2024. The aggregate amount of minimum lease payments to be made over the term of the lease is approximately $5.8 million (EUR 4.8 million).

	In April 2014, the Company amended its current lease for its Budapest, Hungary office space to provide for an expansion of leased space and to extend the term of the lease. The term of the amended lease began in July 2014 and will extend through June 2019. The aggregate amount of minimum lease payments to be made over the term of the lease increased to approximately $6.9 million (EUR 5.7 million). The amended lease agreement required a bank guarantee of approximately $430,000 (EUR 354,000). The bank guarantee is classified as restricted cash.

	Rent expense under all leases was approximately $3.2 million, $6.0 million and $7.1 million for the years ended December 31, 2012, 2013 and 2014, 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 $3.2 million, $4.7 million and $5.1 million for the years ended December 31, 2012, 2013 and 2014, respectively.

	Future minimum lease payments under non-cancelable operating leases including one year commitments associated with the Company’s hosting services arrangements are approximately as follows at December 31, 2014 (in thousands):



	Years Ending December 31
	2015		$	10,347
	2016			9,501
	2017			10,090
	2018			10,453
	2019			9,837
	Thereafter			53,252

	Total minimum lease payments		$	103,480


	Litigation — On September 8, 2010, 01 Communique Laboratory, Inc., or 01, filed a complaint that named the Company as a defendant in a lawsuit in the U.S. District Court for the Eastern District of Virginia (Civil Action No. 1:10cv1007) alleging that the Company infringed U.S. Patent No. 6,928,479, or the ‘479 Patent, which is owned by 01 and has claims directed to a particular application or system for providing a private communication portal from one computer to a second computer. The complaint sought damages in an unspecified amount and injunctive relief. The trial commenced on March 18, 2013 and on March 26, 2013, a jury in the Eastern District of Virginia found that the Company’s products do not infringe the ‘479 Patent as previously asserted by 01. 01 appealed the jury’s non-infringement verdict and on June 9, 2014, the jury’s non-infringement verdict was affirmed by the U.S. Court of Appeals for the Federal Circuit. On November 21, 2014, the U.S. District Court for the Eastern District of Virginia issued its final order, awarding costs to the Company, which 01 paid on December 3, 2014, formally concluding this matter.

	On November 21, 2012, the Company filed suit against Pragmatus Telecom LLC, or Pragmatus, in the U.S. District Court for the District of Delaware (Civil Action No. 12-1507) seeking a declaratory judgment that the Company’s products do not infringe three patents allegedly owned by Pragmatus after certain of the Company’s customers received letters from Pragmatus claiming that their use of certain LogMeIn services infringed upon those patents. On March 29, 2013, the Company and Pragmatus entered into a License Agreement, which granted the Company a fully-paid license covering the patents at issue. The Company paid Pragmatus a one-time license fee in connection with the License Agreement in April 2013. As a result, the Company’s declaratory judgment action was dismissed by the court on May 3, 2013.

	On August 26, 2014, Sensory Technologies, LLC, or Sensory, filed a complaint against the Company in the U.S. District Court for the Southern District of Indiana (Case No. 1:14-cv-1406). The complaint alleges, among other things, that the Company has infringed upon Sensory’s JOIN^® trademark, which is registered to Sensory under U.S. Trademark Registration No. 3622883. The complaint seeks damages in an unspecified amount and injunctive relief. The Company believes it has meritorious defenses to the 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 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 on behalf of all other similarly situated individuals, or collectively, the Plaintiffs. After the Company filed a motion to dismiss the complaint on January 30, 2015, the Plaintiffs filed an amended complaint on February 17, 2015. The amended complaint includes claims made under California’s False Advertising Act and Unfair Competition Law and relates to the Company’s sale of its Ignition for iOS application, or the App, and the Plaintiffs’ continued use of the App. The Plaintiffs’ complaint 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 the 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.

	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. The Company routinely assesses its current litigation and/or threatened litigation as to the probability of ultimately incurring a liability, and records its best estimate of the ultimate loss in situations where the Company assesses the likelihood of loss as probable. 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.

401k_Plan

401(k) Plan	12 Months Ended
	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
401(k) Plan	12	401(k) Plan
	On January 1, 2007, the Company established a defined contribution savings plan under Section 401(k) of the Internal Revenue Code. The plan is available to all employees upon employment and allows participants to defer a portion of their annual compensation on a pre-tax basis. The Company may contribute to the plan at the discretion of the Board of Directors. The Company has not made any contributions to the plan through December 31, 2014.

Subsequent_Event

Subsequent Event	12 Months Ended
	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Event	13	Subsequent Event

	On February 18, 2015, the Company entered into a multi-currency credit agreement with a syndicated bank group for which JPMorgan Chase Bank, N.A. acts as administrative agent. The credit agreement provides for a secured revolving credit facility of up to $100 million, and may be increased by an additional $50 million subject to further commitment from the lenders. The credit facility matures on February 18, 2020 and includes certain financial covenants with which the Company must comply. The Company and its subsidiaries expect to use the credit facility for general corporate purposes, including the potential acquisition of complementary products or businesses, share repurchases, as well as for working capital.

Quarterly_Information_Unaudite

Quarterly Information (Unaudited)	12 Months Ended
Quarterly Information (Unaudited)	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Quarterly Information (Unaudited)	14	Quarterly Information (Unaudited)



			For the Three Months Ended,
			March 31,			June 30,			September 30,			December 31,			March 31,		June 30,		September 30,		December 31,
			2013			2013			2013			2013			2014		2014		2014		2014
			(in thousands, except for per share data)
	Statement of Operations Data:
	Revenue		$	37,437		$	40,670		$	42,970		$	45,181		$	49,020	$	54,975	$	58,062	$	59,899
	Gross profit			33,028			35,894			38,285			40,235			42,900		47,578		50,728		52,018
	(Loss) income from operations			(6,630	)		(123	)		2,191			2,636			1,598		782		2,771		3,536
	Net (loss) income			(5,807	)		(1,360	)		(56	)		(459	)		1,004		1,330		2,308		3,313
	Net (loss) income per share-basic			(0.24	)		(0.06	)		0			(0.02	)		0.04		0.05		0.09		0.14
	Net (loss) income per share-diluted			(0.24	)		(0.06	)		0			(0.02	)		0.04		0.05		0.09		0.14

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2014
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation — The accompanying consolidated financial statements include the results of operations of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. The Company has prepared the accompanying consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”).
Use of Estimates	Use of Estimates — The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. By their nature, estimates are subject to an inherent degree of uncertainty. Actual results could differ from those estimates.
Cash Equivalents	Cash Equivalents — Cash equivalents consist of highly liquid investments with an original or remaining maturity of less than three months at the date of purchase. Cash equivalents consist of investments in money market funds which primarily invest in U.S. Treasury obligations. Cash equivalents are stated at cost, which approximates fair value.
Marketable Securities	Marketable Securities — The Company’s marketable securities are classified as available-for-sale and are carried at fair value with the unrealized gains and losses, net of tax, reported as a component of accumulated other comprehensive loss in equity. Realized gains and losses and declines in value judged to be other than temporary are included as a component of earnings based on the specific identification method. Fair value is determined based on quoted market prices. At December 31, 2013 and 2014, marketable securities consisted of U.S. government agency securities and corporate bonds that have remaining maturities within two years and have an aggregate amortized cost of $100.3 million. The securities have an aggregate fair value of $100.3 million and $100.2 million, including $67,000 and $9,000 of unrealized gains and $28,000 and $138,000 of unrealized losses, at December 31, 2013 and 2014 respectively.
Restricted Cash	Restricted Cash — In May 2013, $125,000 of restricted cash associated with the Company’s Woburn, Massachusetts office lease was returned to the Company in connection with the expiration of the lease. In April 2012, the Company entered into a lease for a new corporate headquarters located in Boston, Massachusetts. The lease required a security deposit of approximately $3.3 million in the form of an irrevocable standby letter of credit which is collateralized by a bank deposit in the amount of approximately $3.5 million or 105 percent of the security deposit. Such amounts are classified as restricted cash in the accompanying consolidated balance sheets. In addition, the Company has made security deposits for various other leased facilities, which are also classified as restricted cash.
Accounts Receivable	Accounts Receivable — The Company reviews accounts receivable on a periodic basis to determine if any receivables will potentially be uncollectible. Estimates are used to determine the amount of the allowance for doubtful accounts necessary to reduce accounts receivable to its estimated net realizable value. The estimates are based on an analysis of past due receivables, historical bad debt trends, current economic conditions, and customer specific information. After the Company has exhausted all collection efforts, the outstanding receivable balance relating to services provided is written off against the allowance and the balance related to services not yet delivered is charged as an offset to deferred revenue.

	Activity in the allowance for doubtful accounts was as follows (in thousands):


			December 31,
			2012			2013		2014
	Balance, beginning		$	109		$	180	$	269
	Provision for bad debt			100			116		102
	Uncollectible accounts written off			29			27		70

	Balance, ending		$	180		$	269	$	301

Property and Equipment	Property and Equipment — Property and equipment are recorded at cost and depreciated using the straight-line method over the estimated useful lives of the related assets. Upon retirement or sale, the cost of the assets disposed of and the related accumulated depreciation are eliminated from the accounts, and any resulting gain or loss is reflected in the consolidated statements of operations. Expenditures for maintenance and repairs are charged to expense as incurred.
	Estimated useful lives of assets are as follows:


	Computer equipment and software			2 —3 years
	Office equipment			3 years
	Furniture and fixtures			5 years
	Leasehold Improvements			Shorter of lease term
	Leasehold Improvements			or estimated useful life
Goodwill	Goodwill — Goodwill is the excess of the acquisition price over the fair value of the tangible and identifiable intangible net assets acquired. The Company does not amortize goodwill, but performs an impairment test of goodwill annually or whenever events and circumstances indicate that the carrying amount of goodwill may exceed its fair value. The Company operates as a single operating segment with one reporting unit and consequently evaluates goodwill for impairment based on an evaluation of the fair value of the Company as a whole. As of December 31, 2014, the fair value of the Company as a whole significantly exceeds the carrying amount of the Company. Through December 31, 2014, no impairments have occurred.
Long-Lived Assets and Intangible Assets	Long-Lived Assets and Intangible Assets — The Company records intangible assets at their respective estimated fair values at the date of acquisition. Intangible assets are being amortized 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, which range from four months to eight years.
Long-Lived Assets and Intangible Assets	The Company reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets, including intangible assets, may not be recoverable. When such events occur, the Company compares the carrying amounts of the assets to their undiscounted expected future cash flows. If this comparison indicates that there is impairment, the amount of the impairment is calculated as the difference between the carrying value and fair value. Through December 31, 2014, the Company recorded no material impairments.
Revenue Recognition	Revenue Recognition — The Company derives revenue primarily from subscription fees related to its LogMeIn premium services and to a lesser extent, the delivery of professional services, primarily related to its Xively business.
	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.
	The Company currently only offers free versions of its iPhone, iPad and Android software products. The Company had formerly sold these iPhone, iPad and Android software products as perpetually licensed software, the revenue from which was recognized when there was persuasive evidence of an arrangement, the product had been provided to the customer, the collection of the fee was probable, and the amount of fees to be paid by the customer was fixed or determinable.
	Revenues are reported net of applicable sales and use tax, value-added tax, and other transaction taxes imposed on the related transaction.
Deferred Revenue	Deferred Revenue — Deferred revenue primarily consists of billings and payments received in advance of revenue recognition. The Company primarily bills and collects payments from customers for products and services in advance on a monthly and annual basis. Deferred revenue to be recognized in the next twelve months is included in current deferred revenue, and the remaining amounts are included in long-term deferred revenue in the consolidated balance sheets.
Concentrations of Credit Risk and Significant Customers	Concentrations of Credit Risk and Significant Customers — The Company’s principal credit risk relates to its cash, cash equivalents, marketable securities, restricted cash, and accounts receivable. Cash, cash equivalents, and restricted cash are deposited primarily with financial institutions that management believes to be of high-credit quality and custody of its marketable securities is with an accredited financial institution. To manage accounts receivable credit risk, the Company regularly evaluates the creditworthiness of its customers and maintains allowances for potential credit losses. To date, losses resulting from uncollected receivables have not exceeded management’s expectations.
Concentrations of Credit Risk and Significant Customers	As of December 31, 2013 no customers accounted for more than 10% of accounts receivable and there were no customers that represented 10% or more of revenue for the years ended December 31, 2012, 2013, or 2014. As of December 31, 2014, one customer accounted for 15% of accounts receivable.
Legal Costs	Legal Costs — Legal expenditures are expensed as incurred.
Research and Development	Research and Development — Research and development expenditures are expensed as incurred.
Software Development Costs	Software Development Costs — The Company has determined that technological feasibility of its software products that are sold as a perpetual license is reached shortly before their introduction to the marketplace.
Software Development Costs	The Company capitalizes certain direct costs to develop functionality as well as certain upgrades and enhancements of its on-demand products that are probable to result in additional functionality. The costs incurred in the preliminary stages of development are expensed as incurred. Once an application has reached the development stage, internal and external costs, if direct and incremental, are capitalized as part of intangible assets until the software is substantially complete and ready for its intended use. Internally developed software costs that are capitalized are classified as intangible assets and amortized over a three year period.
Foreign Currency Translation	Foreign Currency Translation — The functional currency of operations outside the United States of America is deemed to be the currency of the local country, unless otherwise determined that the United States dollar would serve as a more appropriate functional currency given the economic operations of the entity. Accordingly, the assets and liabilities of the Company’s foreign subsidiaries are translated into United States dollars using the period-end exchange rate, and income and expense items are translated using the average exchange rate during the period. Cumulative translation adjustments are reflected as a separate component of equity. Foreign currency transaction gains and losses are charged to operations. The Company had foreign currency losses of approximately $641,000, and $89,000 for the years ended December 31, 2012 and 2013, and Foreign currency gains of approximately $105,000 for the year ended December 31 2014 included in other (expense) income in the consolidated statements of operations.
Stock-Based Compensation	Stock-Based Compensation — The Company values all stock-based compensation, including grants of stock options and restricted stock units, at fair value on the date of grant and recognizes the expense over the requisite service period, which is generally the vesting period of the award, for those awards expected to vest, on a straight-line basis. The Company uses the with-or-without method to determine when it will realize excess tax benefits from stock based compensation. Under this method, the Company will realize these excess tax benefits only after it realizes the tax benefits of net operating losses from operations.
Income Taxes	Income Taxes — Deferred income taxes are provided for the tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes, and operating loss carry-forwards and credits using enacted tax rates expected to be in effect in the years in which the differences are expected to reverse. At each balance sheet date, the Company assesses the likelihood that deferred tax assets will be realized, and recognizes a valuation allowance if it is more likely than not that some portion of the deferred tax assets will not be realized. This assessment requires judgment as to the likelihood and amounts of future taxable income by tax jurisdiction.
Income Taxes	The Company evaluates its uncertain tax positions based on a determination of whether and how much of a tax benefit taken by the Company in its tax filings is more likely than not to be realized. Potential interest and penalties associated with any uncertain tax positions are recorded as a component of income tax expense. As of December 31, 2014, the Company has provided a liability for approximately $652,000 for uncertain tax positions. These uncertain tax positions would impact the Company’s effective tax rate if recognized.
Advertising Costs	Advertising Costs — The Company expenses advertising costs as incurred. Advertising expense for the years ended December 31, 2012, 2013, and 2014 was approximately $23.8 million, $27.8 million, and $36.8 million respectively, which consisted primarily of online paid searches, banner advertising, and other online marketing and is included in sales and marketing expense in the accompanying consolidated statements of operations.
Comprehensive Income	Comprehensive Income (Loss) — Comprehensive income (loss) is the change in stockholders’ equity during a period relating to transactions and other events and circumstances from non-owner sources and currently consists of net income, foreign currency translation adjustments, and unrealized gains and losses, net of tax on available-for-sale securities. Accumulated comprehensive loss was approximately $1.2 million at December 31, 2013 and consisted of $1.2 million related to foreign currency translation adjustments offset by $25,000 of unrealized losses, net of tax on available-for sale securities. Accumulated comprehensive income was approximately $3.1 million at December 31, 2014 and consisted of $3.0 million related to foreign currency translation adjustments in addition to $82,000 in unrealized losses, net of tax on available-for sale securities.
Fair Value of Financial Instruments	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.
Segment Data	Segment Data — Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision-maker, or decision making group, in making decisions regarding resource allocation and assessing performance. The Company, which uses consolidated financial information in determining how to allocate resources and assess performance, has determined that it operates in one segment.

	The Company’s revenue (based on customer address) and long-lived assets by geography are as follows (in thousands):


			Years Ended December 31,
			2012			2013		2014
	Revenues:
	United States		$	90,233		$	109,444	$	148,532
	United Kingdom			12,846			15,058		19,452
	International — all other			35,758			41,756		53,972

	Total revenue		$	138,837		$	166,258	$	221,956

	Long-lived assets:
	United States		$	4,129		$	10,207	$	9,731
	Hungary			1,599			1,224		2,018
	Ireland			234			1,057		1,139
	International — all other			614			710		588

	Total long-lived assets		$	6,576		$	13,198	$	13,476

Net Income (Loss) Per Share	Net Income (Loss) Per Share — Basic net income (loss) per share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted net income (loss) per share is computed by dividing net income (loss) by the sum of the weighted average number of common shares outstanding during the period and the weighted average number of potential common shares outstanding from the assumed exercise of stock options and the vesting of restricted stock units. For the year ended December 31, 2013, the Company incurred a net loss and therefore, the effect of the Company’s outstanding common stock equivalents were not included in the calculation of diluted loss per share as they were anti-dilutive. Accordingly, basic and dilutive net loss per share for each period were identical.

	The Company excluded the following options to purchase common shares and restricted stock units from the computation of diluted net income (loss) per share either because they had an anti-dilutive impact or because the Company had a net loss in the period (in thousands):



			Years Ended December 31,
			2012			2013		2014
	Options to purchase common shares			1,679			2,389		57
	Restricted stock units			147			1,192		18

	Total options and restricted stock units			1,826			3,581		75




	Basic and diluted net income per share was calculated as follows (in thousands, except share and per share data):



			Year Ended
			December 31, 2012
	Basic:
	Net income		$	3,566

	Weighted average common shares outstanding, basic			24,711,242

	Net income, basic		$	0.14


	Diluted:
	Net income		$	3,566

	Weighted average common shares outstanding			24,711,242
	Add: Options to purchase common shares and restricted stock units			645,063

	Weighted average common shares outstanding, diluted			25,356,305

	Net income, diluted		$	0.14




			Year Ended
			December 31, 2013
	Basic and Diluted Net Loss per Share:
	Net loss		$	(7,682	)

	Weighted average common shares outstanding			24,350,913

	Basic and diluted net loss per share		$	(0.32	)




			Year Ended
			December 31, 2014
	Basic:
	Net income		$	7,955

	Weighted average common shares outstanding, basic			24,385,297

	Net income, basic		$	0.33


Diluted:
Net income		$	7,955

Weighted average common shares outstanding			24,385,297
Add: Options to purchase common shares and restricted stock units			1,000,902

Weighted average common shares outstanding, diluted			25,386,199

Net income, diluted		$	0.31

Guarantees and Indemnification Obligations	Guarantees and Indemnification Obligations — As permitted under Delaware law, the Company has agreements whereby the Company indemnifies certain of its officers and directors for certain events or occurrences while the officer or director is, or was, serving at the Company’s request in such capacity. The term of the indemnification period is for the officer’s or director’s lifetime. As permitted under Delaware law, the Company also has similar indemnification obligations under its certificate of incorporation and by-laws. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has director’s and officer’s insurance coverage that the Company believes limits its exposure and enables it to recover a portion of any future amounts paid.

	The Company has entered into agreements with certain customers that contractually obligate the Company to indemnify the customer from certain claims, including 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 unlimited. Through December 31, 2014, the Company has not experienced any losses related to these indemnification obligations.
	In November 2012, the Company filed suit against Pragmatus Telecom LLC (“Pragmatus”), seeking declaratory judgment after certain of the Company’s customers received letters from Pragmatus claiming that their use of certain LogMeIn services infringed upon three patents allegedly owned by Pragmatus. On March 29, 2013, the Company and Pragmatus entered into a License Agreement, which granted the Company a fully-paid license covering the patents at issue. The Company paid Pragmatus a one-time licensing fee in April 2013, after a portion of the fee was reimbursed in March 2013 from a designated escrow arrangement associated with a prior acquisition. The Company recorded approximately $1.2 million of expense related to this matter in general and administrative expenses in March 2013. As a result, the Company’s declaratory judgment action against Pragmatus was dismissed by the court on May 3, 2013.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements — On May 28, 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”), its final standard on revenue from contracts with customers. ASU 2014-9 outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the revenue model to contracts within its scope, an entity identifies the contract(s) with a customer, identifies the performance obligations in the contract, determines the transaction price, allocates the transaction price to the performance obligations in the contract and recognizes revenue when (or as) the entity satisfies a performance obligation. ASU 2014-09 applies to all contracts with customers that are within the scope of other topics in the FASB Accounting Standards Codification. Certain of ASU 2014-09’s provisions also apply to transfers of nonfinancial assets, including in-substance nonfinancial assets that are not an output of an entity’s ordinary activities (i.e., property plant and equipment; real estate; or intangible assets). Existing accounting guidance applicable to these transfers has been amended or superseded. ASU 2014-09 also requires significantly expanded disclosures about revenue recognition. ASU 2014-09 is effective for the Company on January 1, 2017. The Company is currently assessing the potential impact of the adoption of ASU 2014-09 on its consolidated financial statements.

	On June 19, 2014, the FASB issued ASU 2014-12, Stock Compensation (“ASU 2014-12”), providing guidance on accounting for share-based payment awards when the terms of an award provide that a performance target could be achieved after the requisite service period. The update clarifies that performance targets that can be achieved after the requisite service period of a share-based payment award be treated as performance conditions that affect vesting. These awards should be accounted for under Accounting Standards Codification Topic 718, Compensation — Stock Compensation, and existing guidance should be applied as it relates to awards with performance conditions that affect vesting. The update is effective for the Company for the interim and annual periods beginning after December 15, 2015. The Company is currently evaluating the impact of the adoption of this standard, if any, on its consolidated financial statements.

	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 (“ASU 2014-15”). The standard requires that the Company evaluates, at each interim and annual reporting period, whether there are conditions or events that raise substantial doubt about its ability to continue as a going concern within one year after the date the financial statements are issued, and provide related disclosures. ASU 2014-15 is effective for annual periods ending after December 15, 2016, and for annual and interim periods thereafter, and early adoption is permitted. The Company does not expect to early adopt ASU 2014-15, which will be effective for its fiscal year ending December 31, 2016. The Company does not believe the standard will have a material impact on its financial statements.

	On January 9, 2015, the FASB issued ASU 2015-01, Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items (“ASU 2015-01”). The standard eliminates the requirement of Extraordinary Items to be separately classified on the income statement. ASU 2015-01 is effective for annual periods ending after December 15, 2015, and for annual and interim periods thereafter, and early adoption is permitted. The Company does not expect to early adopt ASU 2015-01, which will be effective for its fiscal year ending December 31, 2016. The Company does not believe the standard will have a material impact on its consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
Summary of Significant Accounting Policies (Tables)	Dec. 31, 2014
Accounting Policies [Abstract]
Activity in Allowance for Doubtful Accounts	Activity in the allowance for doubtful accounts was as follows (in thousands):


		December 31,
		2012			2013		2014
	Balance, beginning	$	109		$	180	$	269
	Provision for bad debt		100			116		102
	Uncollectible accounts written off		29			27		70

	Balance, ending	$	180		$	269	$	301

Estimated Useful Lives of Assets	Estimated useful lives of assets are as follows:


	Computer equipment and software		2 —3 years
	Office equipment		3 years
	Furniture and fixtures		5 years
	Leasehold Improvements		Shorter of lease term
	Leasehold Improvements		or estimated useful life
Schedule of Revenue and Long-lived Assets by Geographic Areas	The Company’s revenue (based on customer address) and long-lived assets by geography are as follows (in thousands):


		Years Ended December 31,
		2012			2013		2014
	Revenues:
	United States	$	90,233		$	109,444	$	148,532
	United Kingdom		12,846			15,058		19,452
	International — all other		35,758			41,756		53,972

	Total revenue	$	138,837		$	166,258	$	221,956

	Long-lived assets:
	United States	$	4,129		$	10,207	$	9,731
	Hungary		1,599			1,224		2,018
	Ireland		234			1,057		1,139
	International — all other		614			710		588

	Total long-lived assets	$	6,576		$	13,198	$	13,476

Schedule of Options to Purchase Common Shares and Restricted Stock Units	The Company excluded the following options to purchase common shares and restricted stock units from the computation of diluted net income (loss) per share either because they had an anti-dilutive impact or because the Company had a net loss in the period (in thousands):


		Years Ended December 31,
		2012			2013		2014
	Options to purchase common shares		1,679			2,389		57
	Restricted stock units		147			1,192		18

	Total options and restricted stock units		1,826			3,581		75

Reconciliation of Basic and Diluted Net Income per Share	Basic and diluted net income per share was calculated as follows (in thousands, except share and per share data):



		Year Ended
		December 31, 2012
	Basic:
	Net income	$	3,566

	Weighted average common shares outstanding, basic		24,711,242

	Net income, basic	$	0.14


	Diluted:
	Net income	$	3,566

	Weighted average common shares outstanding		24,711,242
	Add: Options to purchase common shares and restricted stock units		645,063

	Weighted average common shares outstanding, diluted		25,356,305

	Net income, diluted	$	0.14




		Year Ended
		December 31, 2013
	Basic and Diluted Net Loss per Share:
	Net loss	$	(7,682	)

	Weighted average common shares outstanding		24,350,913

	Basic and diluted net loss per share	$	(0.32	)




		Year Ended
		December 31, 2014
	Basic:
	Net income	$	7,955

	Weighted average common shares outstanding, basic		24,385,297

	Net income, basic	$	0.33


	Diluted:
	Net income	$	7,955

	Weighted average common shares outstanding		24,385,297
	Add: Options to purchase common shares and restricted stock units		1,000,902

	Weighted average common shares outstanding, diluted		25,386,199

	Net income, diluted	$	0.31

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	12 Months Ended
Fair Value of Financial Instruments (Tables)	Dec. 31, 2014
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, 2013 Using
		Level 1			Level 2		Level 3		Total
	Financial Assets:
	Cash equivalents — money market funds	$	28,210		$	—	$	—	$	28,210
	Cash equivalents — bank deposits		—			5,001		—		5,001
	Short-term marketable securities — U.S. government agency securities		75,288			25,011		—		100,299

	Total	$	103,498		$	30,012	$	—	$	133,510



		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

Reconciliation of Beginning and Ending Level 3 Liability	A reconciliation of the beginning and ending Level 3 liability is as follows (in thousands):


		Years Ended
		December 31,
		2013			2014
	Balance beginning of period	$	161		$	—
	Additions to Level 3		—			239
	Payments		(178	)		—
	Change in fair value of contingent consideration liability		17			10

	Balance end of period	$	—		$	249

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
Acquisitions (Tables)	Dec. 31, 2014
Ionia [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

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	$	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

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	12 Months Ended
Goodwill and Intangible Assets (Tables)	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Goodwill	Changes in goodwill for the years ended December 31, 2013 and 2014 are as follows (in thousands):


	Balance, December 31, 2012	$	18,883
	Foreign currency translation adjustments		(171	)

	Balance, December 31, 2013	$	18,712
	Goodwill related to the acquisition of Ionia		6,295
	Goodwill related to the acquisition of Meldium		9,437
	Goodwill related to the acquisition of the San Francisco-based collaboration software provider		3,484

	Balance, December 31, 2014	$	37,928

Intangible Assets	Intangible assets consist of the following (in thousands):


					December 31, 2013						December 31, 2014
		Estimated			Gross		Accumulated		Net		Gross		Accumulated		Net
		Useful			Carrying		Amortization		Carrying		Carrying		Amortization		Carrying
		Life			Amount				Amount		Amount				Amount
	Identifiable intangible assets:
	Trade names and trademarks		1-5 years		$	666	$	666	$	—	$	806	$	682	$	124
	Customer relationships		5-8 years			3,789		1,901		1,888		5,229		2,546		2,683
	Customer backlog		4 months			—		—		—		120		120		—
	Domain names		5 years			894		341		553		907		507		400
	Software		4 years			299		299		—		299		299		—
	Completed technology		3-8 years			13,963		1,835		12,128		16,903		3,981		12,922
	Technology and know-how		3 years			3,176		2,597		579		3,176		3,176		—
	Documented know-how		4 years			—		—		—		280		57		223
	Non-Compete agreements		5 years			162		34		128		162		71		91
	Internally developed software		3 years			2,485		875		1,610		4,591		2,051		2,540

					$	25,434	$	8,548	$	16,886	$	32,473	$	13,490	$	18,983

Future Estimated Amortization Expense	Future estimated amortization expense for intangible assets is as follows at December 31, 2014 (in thousands):


	Amortization Expense (Years Ending December 31)	Amount
	2015	$	5,037
	2016		4,609
	2017		4,270
	2018		3,435
	2019		1,096
	Thereafter		536

	Total	$	18,983

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
Property and Equipment (Tables)	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment consisted of the following (in thousands):


		December 31,
		2013			2014
	Computer equipment and software	$	22,276		$	24,968
	Office equipment		3,235			3,624
	Furniture & fixtures		3,083			4,075
	Construction in progress		456			684
	Leasehold improvements		2,967			3,752

	Total property and equipment		32,017			37,103
	Less accumulated depreciation and amortization		(18,819	)		(23,627	)

	Property and equipment, net	$	13,198		$	13,476

Accrued_Liabilities_Tables

Accrued Liabilities (Tables)	12 Months Ended
Accrued Liabilities (Tables)	Dec. 31, 2014
Payables and Accruals [Abstract]
Summary of Accrued Liabilities	Accrued liabilities consisted of the following (in thousands):


		December 31,		December 31,
		2013		2014
	Marketing programs	$	4,631	$	7,626
	Payroll and payroll related		9,719		14,873
	Professional fees		1,064		1,961
	Other accrued liabilities		4,696		5,022

	Total accrued liabilities	$	20,110	$	29,482

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Components of Income Before Provision for Income Taxes	The domestic and foreign components of income before provision for income taxes are as follows (in thousands):


		Years Ended December 31,
		2012			2013			2014
	Domestic	$	7,789		$	10,389		$	(4,462	)
	Foreign		(1,532	)		(11,857	)		13,856

	Total income (loss) before provision for income taxes	$	6,257		$	(1,468	)	$	9,394

Components of Income Taxes Provision	The provision for income taxes is as follows (in thousands):


		Years Ended December 31,
		2012			2013			2014
	Current
	Federal	$	8,324		$	5,480		$	2,804
	State		1,181			1,346			1,184
	Foreign		126			952			1,052

	Total		9,631			7,778			5,040

	Deferred
	Federal		(4,926	)		(1,379	)		(3,069	)
	State		44			(177	)		(748	)
	Foreign		(2,058	)		(8	)		216

	Total		(6,940	)		(1,564	)		(3,601	)

	Total provision for income taxes	$	2,691		$	6,214		$	1,439

Reconciliation of Company's Effective Tax Rate to Statutory Federal Income Tax Rate	A reconciliation of the Company’s effective tax rate to the statutory federal income tax rate is as follows:


		For the Years Ended December 31,
		2012			2013			2014
	Statutory tax rate		35	%		35	%		35	%
	Change in valuation allowance		(10.8	)		—			—
	Impact of permanent differences		15.6			(82.3	)		16.2
	Foreign tax rate differential		(11.5	)		(346.9	)		(39.1	)
	Research and development credits		—			23.1			(2.6	)
	State taxes, net of federal benefit		13.8			(51.9	)		2.9
	Impact of uncertain tax positions		0.8			(3.6	)		3.8
	Other		0.1			3.4			(0.8	)

	Effective tax rate		43	%		(423.2	)%		15.4	%

Components of Deferred Tax Assets and Liabilities	The Company has deferred tax assets related to temporary differences and operating loss carryforwards as follows (in thousands):


		December 31,
		2013			2014
	Deferred tax assets:
	Net operating loss carryforwards	$	2,375		$	2,783
	Deferred revenue		627			775
	Amortization		1,211			1,806
	Research and development credit carryforwards		404			12
	Bad debt reserves		56			79
	Stock compensation associated with non-qualified awards		10,423			11,584
	Accrued Bonus		1,530			3,579
	Depreciation		326			171
	Other		839			1,016

	Total deferred tax assets		17,791			21,805
	Deferred tax asset valuation allowance		(2,836	)		(2,203	)

	Net deferred tax assets		14,955			19,602

	Deferred tax liabilities:
	Depreciation		(1,212	)		(1,234	)
	Goodwill amortization		(1,236	)		(3,640	)
	Other		(14	)		(45	)

	Total deferred tax liabilities		(2,462	)		(4,919	)

	Total	$	12,493		$	14,683

Summary of Liabilities for Uncertain Tax Provisions	The Company has provided liabilities for uncertain tax provisions as follows (in thousands):


		Years Ended
		December 31,
		2013			2014
	Beginning balance	$	251		$	304
	Gross decreases — tax positions in prior period		—			(56	)
	Gross increases — tax positions in current period		53			404

	Ending balance	$	304		$	652

Common_Stock_and_Equity_Tables

Common Stock and Equity (Tables)	12 Months Ended
Common Stock and Equity (Tables)	Dec. 31, 2014
Equity [Abstract]
Reserved Common Stock for Stock Options and Restricted Stock Units	Common Stock Reserved — As of December 31, 2013 and 2014, the Company has reserved the following number of shares of common stock for the exercise of stock options and restricted stock units (in thousands):


		Number of Shares as of
		December 31,		December 31,
		2013		2014
	Common stock options and restricted stock units		5,231		4,906

	Total reserved		5,231		4,906

Stock_Incentive_Plan_Tables

Stock Incentive Plan (Tables)	12 Months Ended
Stock Incentive Plan (Tables)	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Assumptions to Apply Black-Scholes Option-Pricing Model	The Company used the following assumptions to apply the Black-Scholes option-pricing model:


		Years Ended December 31,
		2012		2013	2014
	Expected dividend yield	0.00%		0.00%	0.00%
	Risk-free interest rate	0.64% - 0.87%		0.87 - 1.36%	1.48%
	Expected term (in years)	5.56 - 6.25		6.25	6.25
	Volatility	55% - 60%		55%	55%
Summary of Stock Option Activity	The following table summarizes stock option activity (shares and intrinsic value in thousands):



		Number			Weighted			Weighted		Aggregate
		of Options			Average			Average		Intrinsic
					Exercise			Remaining		Value
					Price			Contractual
								Term
								(Years)
	Outstanding, January 1, 2014		2,389		$	26.85			6.4

	Granted		35			41.03
	Exercised		(859	)		20.48				$	20,566

	Forfeited		(158	)		36.4

	Outstanding, December 31, 2014		1,407		$	30.02			6.2	$	27,186

	Exercisable at December 31, 2014		957		$	28.24			5.7	$	20,190

	Vested or expected to vest at December 31, 2014		1,389		$	30.05			6.2	$	26,805

Summary of Assumptions Used in Monte Carlo Simulation Model	The assumptions used in the Monte Carlo simulation model include (but are not limited to) the following:


		August 2013 Grant			May 2014 Grant
	Risk-free interest rate		0.62	%		0.78	%
	Volatility		54	%		54	%
Schedule of Restricted Stock Unit Activity Including Performance-based Restricted Stock Units	The following table summarizes all restricted stock unit activity, including performance-based restricted stock units (shares in thousands):


		Number of shares			Weighted Average
		Underlying Restricted			Grant Date
		Stock Units			Fair Value
	Unvested as of January 1, 2014		1,192		$	28.47
	Restricted stock units granted		705			44.63
	Restricted stock units vested		(430	)		27.63
	Restricted stock units forfeited		(188	)		30.1

	Unvested as of December 31, 2014		1,279		$	37.42

Schedule of Stock Based Compensation Allocated to Expense	The Company recognized stock-based compensation expense within the accompanying consolidated statements of operations as summarized in the following table (in thousands):


		Years Ended December 31,
		2012			2013			2014
	Cost of revenue	$	484		$	706		$	1,107
	Research and development		2,826			3,761			3,653
	Sales and marketing		4,962			7,242			9,033
	General and administrative		6,520			8,005			10,976

		$	14,792		$	19,714		$	24,769

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
Commitments and Contingencies (Tables)	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Schedule of Minimum Future Lease Payments Receivable	Future minimum lease payments under non-cancelable operating leases including one year commitments associated with the Company’s hosting services arrangements are approximately as follows at December 31, 2014 (in thousands):



	Years Ending December 31
	2015	$	10,347
	2016		9,501
	2017		10,090
	2018		10,453
	2019		9,837
	Thereafter		53,252

	Total minimum lease payments	$	103,480

Quarterly_Information_Unaudite1

Quarterly Information (Unaudited) (Tables)	12 Months Ended
Quarterly Information (Unaudited) (Tables)	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Statement of Operations Data
		For the Three Months Ended,
		March 31,			June 30,			September 30,			December 31,			March 31,		June 30,		September 30,		December 31,
		2013			2013			2013			2013			2014		2014		2014		2014
		(in thousands, except for per share data)
	Statement of Operations Data:
	Revenue	$	37,437		$	40,670		$	42,970		$	45,181		$	49,020	$	54,975	$	58,062	$	59,899
	Gross profit		33,028			35,894			38,285			40,235			42,900		47,578		50,728		52,018
	(Loss) income from operations		(6,630	)		(123	)		2,191			2,636			1,598		782		2,771		3,536
	Net (loss) income		(5,807	)		(1,360	)		(56	)		(459	)		1,004		1,330		2,308		3,313
	Net (loss) income per share-basic		(0.24	)		(0.06	)		0			(0.02	)		0.04		0.05		0.09		0.14
	Net (loss) income per share-diluted		(0.24	)		(0.06	)		0			(0.02	)		0.04		0.05		0.09		0.14

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended			3 Months Ended
	Nov. 21, 2012	Nov. 30, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013	31-May-13	Apr. 30, 2012
	Patents	Patents	Segment	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013	31-May-13	Apr. 30, 2012
Organization And Summary Of Significant Accounting Policies [Line Items]
Marketable securities, maturities remaining			2 years
Marketable securities, amortized cost			$100,300,000	$100,300,000
Marketable securities			100,209,000	100,299,000
Marketable securities, unrealized gains			9,000	67,000
Marketable securities, unrealized losses			138,000	28,000
Restricted cash associated with expiration of the lease							125,000
Number of reporting unit			1
Goodwill impairments			0
Long-lived asset impairment			0
Foreign currency losses				89,000	641,000
Foreign currency gains			105,000
Uncertain tax positions			652,000	304,000	251,000
Advertising expense			36,800,000	27,800,000	23,800,000
Accumulated other comprehensive income (loss)			-3,117,000	-1,186,000
Foreign currency translation adjustments			3,000,000	1,200,000
Unrealized (losses) gains, net of tax on available-for-sale securities			-82,000	-25,000
Number of patents involved in infringement lawsuit	3	3
General and administrative expense			30,526,000	29,181,000	21,338,000
Massachusetts [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Security deposit			3,300,000					3,300,000
Bank deposit								3,500,000
Bank deposit percentage								105.00%
Massachusetts [Member] \| Internally Developed Software [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			3 years
License Agreements [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
General and administrative expense						$1,200,000
Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Accounts receivable, percentage outstanding for major customer			15.00%
Accounts receivable, number of major customers			1	0
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Revenue, number of customers accounted			0	0	0
Minimum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			4 months
Revenue subscription period			1 month
Maximum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			8 years
Revenue subscription period			5 years
Maximum [Member] \| Internally Developed Software [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life				3 years
Weighted Average [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Revenue subscription period			1 year

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Activity in Allowance for Doubtful Accounts (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Abstract]
Balance, beginning	$269	$180	$109
Provision for bad debt	102	116	100
Uncollectible accounts written off	70	27	29
Balance, ending	$301	$269	$180

Summary_of_Significant_Account5

Summary of Significant Accounting Policies - Estimated Useful Lives of Assets (Detail)	12 Months Ended
	Dec. 31, 2014
Computer Equipment and Software [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets	2 years
Computer Equipment and Software [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets	3 years
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets	3 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets	5 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Leasehold Improvements	Shorter of lease term or estimated useful life

Summary_of_Significant_Account6

Summary of Significant Accounting Policies - Schedule of Revenue and Long-lived Assets by Geographic Areas (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue from External Customer [Line Items]
Revenue	$59,899	$58,062	$54,975	$49,020	$45,181	$42,970	$40,670	$37,437	$221,956	$166,258	$138,837
Long-lived assets	13,476				13,198				13,476	13,198	6,576
United States [Member]
Revenue from External Customer [Line Items]
Revenue									148,532	109,444	90,233
Long-lived assets	9,731				10,207				9,731	10,207	4,129
Hungary [Member]
Revenue from External Customer [Line Items]
Long-lived assets	2,018				1,224				2,018	1,224	1,599
Ireland [Member]
Revenue from External Customer [Line Items]
Long-lived assets	1,139				1,057				1,139	1,057	234
International - All Other [Member]
Revenue from External Customer [Line Items]
Revenue									53,972	41,756	35,758
Long-lived assets	588				710				588	710	614
United Kingdom [Member]
Revenue from External Customer [Line Items]
Revenue									$19,452	$15,058	$12,846

Summary_of_Significant_Account7

Summary of Significant Accounting Policies - Schedule of Options to Purchase Common Shares and Restricted Stock Units (Detail)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options and restricted stock units	75	3,581	1,826
Options to Purchase Common Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options and restricted stock units	57	2,389	1,679
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options and restricted stock units	18	1,192	147

Summary_of_Significant_Account8

Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Net Income per Share (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Basic and Diluted Net Loss per Share:
Net income (loss)	$3,313	$2,308	$1,330	$1,004	($459)	($56)	($1,360)	($5,807)	$7,955	($7,682)	$3,566
Weighted average common shares outstanding										24,350,913
Basic and diluted net loss per share										($0.32)
Basic:
Net income (loss)	3,313	2,308	1,330	1,004	-459	-56	-1,360	-5,807	7,955	-7,682	3,566
Weighted average common shares outstanding, basic									24,385,297	24,350,913	24,711,242
Net income, basic	$0.14	$0.09	$0.05	$0.04	($0.02)	$0	($0.06)	($0.24)	$0.33	($0.32)	$0.14
Diluted:
Net income	$3,313	$2,308	$1,330	$1,004	($459)	($56)	($1,360)	($5,807)	$7,955	($7,682)	$3,566
Weighted average common shares outstanding									24,385,297	24,350,913	24,711,242
Add: Options to purchase common shares and restricted stock units									1,000,902		645,063
Weighted average common shares outstanding, diluted									25,386,199	24,350,913	25,356,305
Net income, diluted	$0.14	$0.09	$0.05	$0.04	($0.02)	$0	($0.06)	($0.24)	$0.31	($0.32)	$0.14

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments - Summary of Company's Financial Assets Carried at Fair Value (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	$249
Total	118,600	133,510
Recurring [Member] \| Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	13,139	28,210
Recurring [Member] \| Bank Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	5,003	5,001
Recurring [Member] \| U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	79,853	100,299
Recurring [Member] \| Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	20,356
Quoted Prices in Active Markets for Identical Items (Level 1) [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	73,042	103,498
Quoted Prices in Active Markets for Identical Items (Level 1) [Member] \| Recurring [Member] \| Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	13,139	28,210
Quoted Prices in Active Markets for Identical Items (Level 1) [Member] \| Recurring [Member] \| U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	59,903	75,288
Significant Other Observable Inputs (Level 2) [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	45,309	30,012
Significant Other Observable Inputs (Level 2) [Member] \| Recurring [Member] \| Bank Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	5,003	5,001
Significant Other Observable Inputs (Level 2) [Member] \| Recurring [Member] \| U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	19,950	25,011
Significant Other Observable Inputs (Level 2) [Member] \| Recurring [Member] \| Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	20,356
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	249		161
Significant Unobservable Inputs (Level 3) [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	249
Total	$249

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2014
Debt Instrument Fair Value Carrying Value [Abstract]
Fair value, discount rate	12.00%

Fair_Value_of_Financial_Instru4

Fair Value of Financial Instruments - Reconciliation of Beginning and Ending Level 3 Liability (Detail) (Significant Unobservable Inputs (Level 3) [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Gains and Losses [Line Items]
Balance beginning of period		$161
Additions to Level 3	239
Payments		-178
Change in fair value of contingent consideration liability	10	17
Balance end of period	$249

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended			0 Months Ended	1 Months Ended	0 Months Ended		1 Months Ended
Acquisitions - Additional Information (Detail) (USD $)	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 27, 2014	Feb. 28, 2015	Sep. 05, 2014	Mar. 07, 2014	Mar. 31, 2015
Business Acquisition [Line Items]
Operating revenues	$59,899,000	$58,062,000	$54,975,000	$49,020,000	$45,181,000	$42,970,000	$40,670,000	$37,437,000	$221,956,000	$166,258,000	$138,837,000
Operating expenses									184,537,000	149,368,000	118,322,000
Deferred tax liability, intangible assets	700,000								700,000
Deferred income tax assets	5,403,000				3,053,000				5,403,000	3,053,000
Deferred tax asset related to operating losses	9,280,000				9,470,000				9,280,000	9,470,000
Acquisition-related costs									356,000
BBA, Inc., "Meldium" [Member]
Business Acquisition [Line Items]
Initial cash payment									10,637,000			10,600,000
Contingent payment	216,000								216,000			4,600,000
Maturity period for contingent payment									2 years
Operating expenses									1,800,000
Range of contingent payments, Minimum	0								0
Range of contingent payments, Maximum	4,300,000								4,300,000
Deferred tax liability, intangible assets	694,000								694,000
Deferred income tax assets	88,000								88,000
Deferred tax asset related to operating losses	433,000								433,000
BBA, Inc., "Meldium" [Member] \| Non-Employee Stockholder [Member]
Business Acquisition [Line Items]
Range of contingent payments, Minimum	0								0
Range of contingent payments, Maximum	226,000								226,000
BBA, Inc., "Meldium" [Member] \| Scenario, Forecast [Member]
Business Acquisition [Line Items]
Contingent payments													1,000,000
San Francisco, California-based Collaboration Software Provider [Member]
Business Acquisition [Line Items]
Initial cash payment									4,500,000					4,500,000
Contingent payment	24,000								24,000					1,500,000
Maturity period for contingent payment									2 years
Operating expenses									490,000
Range of contingent payments, Minimum	0								0
Range of contingent payments, Maximum	1,500,000								1,500,000
Deferred tax liability, intangible assets	430,000								430,000
Deferred tax asset related to operating losses	402,000								402,000
San Francisco, California-based Collaboration Software Provider [Member] \| Non-Employee Stockholder [Member]
Business Acquisition [Line Items]
Range of contingent payments, Minimum	0								0
Range of contingent payments, Maximum	30,000								30,000
Ionia [Member]
Business Acquisition [Line Items]
Initial cash payment															7,500,000
Contingent payment															4,000,000
Maturity period for contingent payment									2 years
Operating revenues									2,100,000
Operating expenses									5,400,000
Range of contingent payments, Minimum	0								0
Range of contingent payments, Maximum	4,000,000								4,000,000
Ionia [Member] \| Scenario, Forecast [Member]
Business Acquisition [Line Items]
Contingent payments																$2,000,000

Acquisitions_Purchase_Price_Al

Acquisitions - Purchase Price Allocation (Detail) (USD $)	0 Months Ended		12 Months Ended	0 Months Ended
In Thousands, unless otherwise specified	Mar. 07, 2014	Aug. 27, 2014	Dec. 31, 2014	Sep. 05, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Goodwill			$37,928		$18,712	$18,883
Ionia [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
Liability for contingent consideration	-4,000
Cash paid	7,500
Ionia [Member] \| Customer Backlog [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets			120
Ionia [Member] \| Trade Name and Trademark [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets			10
Ionia [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets			1,340
Ionia [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		-4,600	-216
Cash paid		10,600	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
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	-1,500
Cash paid			4,500	4,500
San Francisco, California-based Collaboration Software Provider [Member] \| Trade Name and Trademark [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets			100
San Francisco, California-based Collaboration Software Provider [Member] \| Completed Technology [Member]
Business Acquisition [Line Items]
Business acquisition, Intangible assets			$960

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets - Changes in Goodwill (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2014
Goodwill [Line Items]
Beginning balance	$18,883
Foreign currency translation adjustments	-171
Ending balance	18,712	37,928
Ionia [Member]
Goodwill [Line Items]
Goodwill related to the acquisition		6,295
Ending balance		6,295
Meldium [Member]
Goodwill [Line Items]
Goodwill related to the acquisition		9,437
San Francisco, California-based Collaboration Software Provider [Member]
Goodwill [Line Items]
Goodwill related to the acquisition		3,484
Ending balance		$3,484

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets - Intangible Assets (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	32,473	25,434
Accumulated Amortization	13,490	8,548
Net Carrying Amount	18,983	16,886
Trade Name and Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	806	666
Accumulated Amortization	682	666
Net Carrying Amount	124
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,229	3,789
Accumulated Amortization	2,546	1,901
Net Carrying Amount	2,683	1,888
Customer Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	120
Accumulated Amortization	120
Domain Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	907	894
Accumulated Amortization	507	341
Net Carrying Amount	400	553
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	16,903	13,963
Accumulated Amortization	3,981	1,835
Net Carrying Amount	12,922	12,128
Technology and Know-how [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,176	3,176
Accumulated Amortization	3,176	2,597
Net Carrying Amount		579
Documented Know-how [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	280
Accumulated Amortization	57
Net Carrying Amount	223
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	162	162
Accumulated Amortization	71	34
Net Carrying Amount	91	128
Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,591	2,485
Accumulated Amortization	2,051	875
Net Carrying Amount	2,540	1,610
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_Assets4

Goodwill and Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 06, 2013
Finite-Lived Intangible Assets [Line Items]
Internally developed software	$2,100,000	$1,200,000
Intangible asset additions	2,529,000	13,061,000	1,049,000
Total amortization of intangible assets	4,900,000	2,500,000	2,100,000
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
Ionia [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	4 months
Ionia [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	8 years
BBA, Inc., "Meldium" [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	4 months
BBA, Inc., "Meldium" [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	8 years
San Francisco, California-based Collaboration Software Provider [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	4 months
San Francisco, California-based Collaboration Software Provider [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	8 years
Customer Backlog [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		4 months
Customer Backlog [Member] \| Ionia [Member]
Finite-Lived Intangible Assets [Line Items]
Business acquisition, Intangible assets	120,000
Documented Know-how [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		4 years
Documented Know-how [Member] \| Ionia [Member]
Finite-Lived Intangible Assets [Line Items]
Business acquisition, Intangible assets	280,000
Trade Name and Trademark [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		1 year
Trade Name and Trademark [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		5 years
Trade Name and Trademark [Member] \| Ionia [Member]
Finite-Lived Intangible Assets [Line Items]
Business acquisition, Intangible assets	10,000
Trade Name and Trademark [Member] \| BBA, Inc., "Meldium" [Member]
Finite-Lived Intangible Assets [Line Items]
Business acquisition, Intangible assets	30,000
Trade Name and Trademark [Member] \| San Francisco, California-based Collaboration Software Provider [Member]
Finite-Lived Intangible Assets [Line Items]
Business acquisition, Intangible assets	100,000
Customer Relationships [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		5 years
Customer Relationships [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		8 years
Customer Relationships [Member] \| Ionia [Member]
Finite-Lived Intangible Assets [Line Items]
Business acquisition, Intangible assets	1,340,000
Customer Relationships [Member] \| BBA, Inc., "Meldium" [Member]
Finite-Lived Intangible Assets [Line Items]
Business acquisition, Intangible assets	100,000
Completed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Asset purchased				11,500,000
Payment for software	500,000
Estimated useful life period	5 years
Completed Technology [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		3 years
Completed Technology [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		8 years
Completed Technology [Member] \| BBA, Inc., "Meldium" [Member]
Finite-Lived Intangible Assets [Line Items]
Business acquisition, Intangible assets	1,580,000
Completed Technology [Member] \| San Francisco, California-based Collaboration Software Provider [Member]
Finite-Lived Intangible Assets [Line Items]
Business acquisition, Intangible assets	960,000
Domain Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset additions	$22,000	$358,000
Domain Names [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life		5 years

Goodwill_and_Intangible_Assets5

Goodwill and Intangible Assets - Future Estimated Amortization Expense (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Intangible Liability Disclosure [Abstract]
2015	$5,037
2016	4,609
2017	4,270
2018	3,435
2019	1,096
Thereafter	536
Net Carrying Amount	$18,983	$16,886

Property_and_Equipment_Schedul

Property and Equipment - Schedule of Property and Equipment (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Total property and equipment	$37,103	$32,017
Less accumulated depreciation and amortization	-23,627	-18,819
Property and equipment, net	13,476	13,198
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	24,968	22,276
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	3,624	3,235
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	4,075	3,083
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	684	456
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$3,752	$2,967

Property_and_Equipment_Additio

Property and Equipment - Additional information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Depreciation expense for property and equipment	$6.20	$5.20	$4

Accrued_Liabilities_Summary_of

Accrued Liabilities - Summary of Accrued Liabilities (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Payables and Accruals [Abstract]
Marketing programs	$7,626	$4,631
Payroll and payroll related	14,873	9,719
Professional fees	1,961	1,064
Other accrued liabilities	5,022	4,696
Total accrued liabilities	$29,482	$20,110

Income_Taxes_Components_of_Inc

Income Taxes - Components of Income Before Provision for Income Taxes (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Domestic	($4,462)	$10,389	$7,789
Foreign	13,856	-11,857	-1,532
Income (loss) before income taxes	$9,394	($1,468)	$6,257

Income_Taxes_Components_of_Inc1

Income Taxes - Components of Income Taxes Provision (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Current federal	$2,804	$5,480	$8,324
Current state	1,184	1,346	1,181
Current foreign	1,052	952	126
Current total	5,040	7,778	9,631
Deferred federal	-3,069	-1,379	-4,926
Deferred state	-748	-177	44
Deferred foreign	216	-8	-2,058
Deferred total	-3,601	-1,564	-6,940
Total provision for income taxes	$1,439	$6,214	$2,691

Income_Taxes_Reconciliation_of

Income Taxes - Reconciliation of Company's Effective Tax Rate to Statutory Federal Income Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Statutory tax rate	35.00%	35.00%	35.00%
Change in valuation allowance			-10.80%
Impact of permanent differences	16.20%	-82.30%	15.60%
Foreign tax rate differential	-39.10%	-346.90%	-11.50%
Research and development credits	-2.60%	23.10%
State taxes, net of federal benefit	2.90%	-51.90%	13.80%
Impact of uncertain tax positions	3.80%	-3.60%	0.80%
Other	-0.80%	3.40%	0.10%
Effective tax rate	15.40%	-423.20%	43.00%

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Line Items]
Provision for income taxes	$1,439,000	$6,214,000	$2,691,000
Income (loss) before income taxes	9,394,000	-1,468,000	6,257,000
U.S. federal statutory rate	35.00%	35.00%	35.00%
Deferred tax liabilities included in accrued liabilities	1,000	15,000
Deferred tax liabilities included in long term liabilities	3,000	15,000
Increase (decrease) in valuation allowance	-633,000		-677,000
Accumulated undistributed earnings	14,000,000
Uncertain tax positions	652,000	304,000	251,000
Interest expense	15,000	4,000
Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	1,559,000
Federal [Member] \| Research and Development Credit Carryforward [Member]
Income Taxes [Line Items]
Research and development carryforwards	0
State [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	1,551,000
State [Member] \| Research and Development Credit Carryforward [Member]
Income Taxes [Line Items]
Research and development carryforwards	12,000
Foreign [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	21,480,000
Foreign [Member] \| Research and Development Credit Carryforward [Member]
Income Taxes [Line Items]
Research and development carryforwards	$0

Income_Taxes_Components_of_Def

Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Net operating loss carryforwards	$2,783	$2,375
Deferred revenue	775	627
Amortization	1,806	1,211
Research and development credit carryforwards	12	404
Bad debt reserves	79	56
Stock compensation associated with non-qualified awards	11,584	10,423
Accrued Bonus	3,579	1,530
Depreciation	171	326
Other	1,016	839
Total deferred tax assets	21,805	17,791
Deferred tax asset valuation allowance	-2,203	-2,836
Net deferred tax assets	19,602	14,955
Depreciation	-1,234	-1,212
Goodwill amortization	-3,640	-1,236
Other	-45	-14
Total deferred tax liabilities	-4,919	-2,462
Total	$14,683	$12,493

Income_Taxes_Summary_of_Liabil

Income Taxes - Summary of Liabilities for Uncertain Tax Provisions (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Beginning balance	$304,000	$251,000
Gross decreases - tax positions in prior period	-56,000
Gross increases - tax positions in current period	404,000	53,000
Ending balance	$652,000	$304,000

Common_Stock_and_Equity_Additi

Common Stock and Equity - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Oct. 20, 2014	Aug. 13, 2013	Feb. 28, 2013	Jun. 09, 2009
Equity [Abstract]
Common shares, Authorized	75,000,000	75,000,000				75,000,000
Preferred stock, Authorized	5,000,000	5,000,000				5,000,000
Share repurchase program			$75,000,000	$50,000,000	$25,000,000
Number of shares repurchased	843,574	1,268,643
Average price of repurchased shares	$43.27	$24.06
Total cost of shares repurchased	36,500,000	30,500,000
Amount available under share repurchase program	$74,400,000

Common_Stock_and_Equity_Reserv

Common Stock and Equity - Reserved Common Stock for Stock Options and Restricted Stock Units (Detail)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Common stock reserved	4,906	5,231
Common Stock Options and Restricted Stock Units [Member]
Class of Stock [Line Items]
Common stock reserved	4,906	5,231

Stock_Incentive_Plan_Additiona

Stock Incentive Plan - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended			1 Months Ended
	22-May-14	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	31-May-14	Aug. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in shares available to grant	1,200,000
Shares available for grant		2,220,348
Cash received from stock option exercised		$17,595,000	$3,798,000	$2,682,000
Requisite service period of compensation expense		4 years
Fair value of common stock		$49.34
Weighted average grant date fair value		$21.78	$11.60	$18.57
Unrecognized share-based compensation cost		$37,300,000
Share-based compensation cost not yet recognized period for recognition		1 year 10 months 24 days
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of compensation expense					2 years	2 years
Total shareholder return shares, percentage					0.00%	0.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of compensation expense					3 years	3 years
Total shareholder return shares, percentage					200.00%	200.00%
Total shareholder return shares					142,000	148,000
Market-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock units, granted					71,000	74,000
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
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock units, granted		705,000
Restricted Stock Units [Member] \| Service-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of options vested		3 years
Restricted Stock Units [Member] \| Market-based Restricted Stock Units [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of options vested		2 years
Restricted Stock Units [Member] \| Market-based Restricted Stock Units [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of options vested		3 years
Restricted Stock Units [Member] \| Time-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of compensation expense		3 years
Number of restricted stock units, granted		633,696

Stock_Incentive_Plan_Summary_o

Stock Incentive Plan - Summary of Assumptions to Apply Black-Scholes Option-Pricing Model (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield	0.00%	0.00%	0.00%
Risk-free interest rate	1.48%
Expected term (in years)	6 years 3 months	6 years 3 months
Volatility	55.00%	55.00%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate		0.87%	0.64%
Expected term (in years)			5 years 6 months 22 days
Volatility			55.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate		1.36%	0.87%
Expected term (in years)			6 years 3 months
Volatility			60.00%

Stock_Incentive_Plan_Summary_o1

Stock Incentive Plan - Summary of Stock Option Activity (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of Options, Outstanding, Beginning balance	2,389,000
Number of Options, Granted	35,000
Number of Options, Exercised	-859,000
Number of Options, Forfeited	-158,000
Number of Options, Outstanding, Ending balance	1,407,000	2,389,000
Number of Options, Exercisable, Ending balance	957,000
Number of Options, Vested or expected to vest, Ending balance	1,389,000
Weighted Average Exercise Price, Outstanding, Beginning balance	$26.85
Weighted Average Exercise Price, Granted	$41.03
Weighted Average Exercise Price, Exercised	$20.48
Weighted Average Exercise Price, Forfeited	$36.40
Weighted Average Exercise Price, Outstanding, Ending balance	$30.02	$26.85
Weighted Average Exercise Price, Exercisable, Ending balance	$28.24
Weighted Average Exercise Price, Vested or expected to vest, Ending balance	$30.05
Weighted Average Remaining Contractual Term (Years), Outstanding	6 years 2 months 12 days	6 years 4 months 24 days
Weighted Average Remaining Contractual Term (Years), Exercisable	5 years 8 months 12 days
Weighted Average Remaining Contractual Term (Years), Vested or expected to vest	6 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding, Beginning balance
Aggregate Intrinsic Value, Exercised	20,566
Aggregate Intrinsic Value, Outstanding, Ending balance	27,186
Aggregate Intrinsic Value, Exercisable, Ending balance	20,190
Aggregate Intrinsic Value, Vested or expected to vest, Ending balance	$26,805

Stock_Incentive_Plan_Summary_o2

Stock Incentive Plan - Summary of Assumptions Used in Monte Carlo Simulation Model (Detail)	12 Months Ended		1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Aug. 31, 2014	31-May-14
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	1.48%
Volatility	55.00%	55.00%
Market-based Restricted Stock Units [Member] \| Tsr Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate			0.62%	0.78%
Volatility			54.00%	54.00%

Stock_Incentive_Plan_Schedule_

Stock Incentive Plan - Schedule of Restricted Stock Unit Activity Including Performance-based Restricted Stock Units (Detail) (Restricted Stock Units [Member], USD $)	12 Months Ended
	Dec. 31, 2014
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares Underlying Restricted Stock Units, Unvested, Beginning balance	1,192,000
Number of shares Underlying Restricted Stock Units, granted	705,000
Number of shares Underlying Restricted Stock Units, vested	-430,000
Number of shares Underlying Restricted Stock Units, forfeited	-188,000
Number of shares Underlying Restricted Stock Units, Unvested, Ending balance	1,279,000
Weighted Average Grant Date Fair Value, Beginning balance	$28.47
Weighted Average Grant Date Fair Value, granted	$44.63
Weighted Average Grant Date Fair Value, vested	$27.63
Weighted Average Grant Date Fair Value, forfeited	$30.10
Weighted Average Grant Date Fair Value, Ending balance	$37.42

Stock_Incentive_Plan_Schedule_1

Stock Incentive Plan - Schedule of Stock Based Compensation Allocated to Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$24,769	$19,714	$14,792
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	1,107	706	484
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	3,653	3,761	2,826
Sales and Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	9,033	7,242	4,962
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$10,976	$8,005	$6,520

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional Information (Detail)

0 Months Ended

1 Months Ended

12 Months Ended

Nov. 21, 2012

Nov. 30, 2012

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Jul. 31, 2014

Dec. 31, 2014

Apr. 30, 2012

Dec. 31, 2014

Oct. 31, 2014

Patents

USD ($)

Hungary [Member]

Massachusetts [Member]

California [Member]

Dublin [Member]

USD ($)

EUR (€)

USD ($)

EUR (€)

Lease

Commitments And Guarantees [Line Items]

Minimum lease payments

$103,480,000

$6,900,000

€ 5,700,000

$47,000,000

$2,400,000

$5,800,000

€ 4,800,000

Excess cost

7,000,000

Lease agreement security deposit

3,300,000

41,000

Number of times lease may be extended

Additional lease term

5 years

Lease agreement bank guarantee

430,000

354,000

Rent expense under all leases

7,100,000

6,000,000

3,200,000

Hosting fees incurred

$5,100,000

$4,700,000

$3,200,000

Number of patents involved in infringement lawsuit

Commitments_and_Contingencies_2

Commitments and Contingencies - Schedule of Minimum Future Lease Payments Receivable (Detail) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Leases [Abstract]
2015	$10,347
2016	9,501
2017	10,090
2018	10,453
2019	9,837
Thereafter	53,252
Total minimum lease payments	$103,480

Subsequent_Event_Additional_In

Subsequent Event - Additional Information (Detail) (Subsequent Event [Member], USD $)	0 Months Ended
	Feb. 18, 2015	Feb. 18, 2015
Subsequent Event [Member]
Subsequent Event [Line Items]
Secured revolving credit facility	$100,000,000	$100,000,000
Line of credit facility, Initiation date	18-Feb-15
Line of credit facility, expiration date	20-Feb-20
Additional secured revolving credit facility subject to further commitment	$50,000,000

Quarterly_Information_Unaudite2

Quarterly Information (Unaudited) - Statement of Operations Data (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Revenue	$59,899	$58,062	$54,975	$49,020	$45,181	$42,970	$40,670	$37,437	$221,956	$166,258	$138,837
Gross profit	52,018	50,728	47,578	42,900	40,235	38,285	35,894	33,028	193,224	147,442	124,333
(Loss) income from operations	3,536	2,771	782	1,598	2,636	2,191	-123	-6,630	8,687	-1,926	6,011
Net (loss) income	$3,313	$2,308	$1,330	$1,004	($459)	($56)	($1,360)	($5,807)	$7,955	($7,682)	$3,566
Net (loss) income per share-basic	$0.14	$0.09	$0.05	$0.04	($0.02)	$0	($0.06)	($0.24)	$0.33	($0.32)	$0.14
Net (loss) income per share-diluted	$0.14	$0.09	$0.05	$0.04	($0.02)	$0	($0.06)	($0.24)	$0.31	($0.32)	$0.14