LifeLock (LOCK) 10-Q/A 10 Nov 14 2014 Q1 Quarterly report (amended) Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	Apr. 25, 2014
Document Information [Line Items]	'	'
Document Type	'10-Q/A	'
Amendment Flag	'true	'
Amendment Description	'We are filing this Amendment No. 1 on Form 10-Q/A (this “Form 10-Q/A”) to amend our Quarterly Report on Form 10-Q for the quarter ended March 31, 2014, originally filed with the Securities and Exchange Commission (the “SEC”) on May 2, 2014 (“Original Filing”), to restate our unaudited condensed consolidated financial statements and related disclosures for the three-months ended March 31, 2014 and 2013. This Form 10-Q/A also amends certain other Items in the Original Filing, as listed in “Items Amended in this Form 10-Q/A” below, as a result of the restatement. Details are discussed below and in Note 2 to the accompanying unaudited condensed consolidated financial statements.	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Trading Symbol	'LOCK	'
Entity Registrant Name	'LifeLock, Inc.	'
Entity Central Index Key	'0001383871	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	92,399,121

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$143,702	$123,911
Marketable securities	47,522	48,688
Trade and other receivables, net	10,601	10,906
Deferred tax assets, net	16,068	13,117
Prepaid expenses and other current assets	9,777	6,961
Total current assets	227,670	203,583
Property and equipment, net	18,064	16,504
Goodwill	159,342	159,342
Intangible assets, net	44,982	47,213
Deferred tax assets, net – noncurrent	33,211	33,211
Other non-current assets	1,561	1,812
Total assets	484,830	461,665
Current liabilities:	'	'
Accounts payable	4,493	2,422
Accrued expenses and other liabilities	34,067	34,926
Deferred revenue	136,319	119,106
Total current liabilities	174,879	156,454
Other non-current liabilities	5,411	4,640
Total liabilities	180,290	161,094
Commitments and contingencies	'	'
Stockholders’ equity:	'	'
Common stock, $0.001 par value, 300,000,000 authorized at March 31, 2014 and December 31, 2013; 92,326,684 and 91,441,771 shares issued and outstanding at March 31, 2014 and December 31, 2013, respectively	92	91
Preferred stock, $0.001 par value, 10,000,000 shares authorized and no shares issued and outstanding at March 31, 2014 and December 31, 2013, respectively	'	'
Additional paid-in capital	474,302	466,046
Accumulated other comprehensive loss	-10	-18
Accumulated deficit	-169,844	-165,548
Total stockholders’ equity	304,540	300,571
Total liabilities and stockholders’ equity	$484,830	$461,665

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Common stock par value	$0.00	$0.00
Common stock shares authorized	300,000,000	300,000,000
Common stock shares issued	92,326,684	91,441,771
Common stock shares outstanding	92,326,684	91,441,771
Preferred stock par value	$0.00	$0.00
Preferred stock shares authorized	10,000,000	10,000,000
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Revenue:	'	'
Consumer revenue	$100,995	$75,094
Enterprise revenue	6,591	7,001
Total revenue	107,586	82,095
Cost of services	29,957	23,790
Gross profit	77,629	58,305
Costs and expenses:	'	'
Sales and marketing	56,539	41,738
Technology and development	12,729	8,923
General and administrative	13,335	9,122
Amortization of acquired intangible assets	2,231	1,966
Total costs and expenses	84,834	61,749
Loss from operations	-7,205	-3,444
Other income (expense):	'	'
Interest expense	-87	-67
Interest income	60	20
Other	-11	-4
Total other expense	-38	-51
Loss before provision for income taxes	-7,243	-3,495
Income tax (benefit) expense	-2,948	47
Net loss	($4,295)	($3,542)
Net loss attributable per share to common stockholders:	'	'
Basic	($0.05)	($0.04)
Diluted	($0.05)	($0.04)
Weighted-average common shares outstanding:	'	'
Basic	91,903	86,640
Diluted	91,903	86,640

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Loss (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Net loss	($4,295)	($3,542)
Other comprehensive gain, net of tax	'	'
Unrealized gain on marketable securities	8	'
Comprehensive loss	($4,287)	($3,542)

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Operating activities	'	'
Net loss	($4,295)	($3,542)
Adjustment to reconcile net loss to net cash provided by operating activities:	'	'
Depreciation and amortization	3,861	3,071
Share-based compensation	4,001	2,252
Provision for doubtful accounts	272	43
Accretion of marketable securities	-366	'
Deferred income tax benefit	-2,951	-103
Other	7	4
Change in operating assets and liabilities:	'	'
Trade and other receivables	-305	-239
Prepaid expenses and other current assets	-2,816	-2,720
Other non-current assets	251	313
Accounts payable	2,776	225
Accrued expenses and other liabilities	-835	1,048
Deferred revenue	17,213	12,477
Other non-current liabilities	771	-34
Net cash provided by operating activities	18,316	12,795
Investing activities	'	'
Acquisition of property and equipment	-3,927	-1,285
Purchase of marketable securities	-5,797	'
Sale and maturities of marketable securities	6,921	'
Net cash used in investing activities	-2,803	-1,285
Proceeds from:	'	'
Share based compensation plans	4,432	36
Payments for:	'	'
Employee tax withholdings related to restricted stock units	-154	'
Debt issuance costs	'	-440
Net cash provided by (used in) financing activities	4,278	-404
Net increase in cash and cash equivalents	19,791	11,106
Cash and cash equivalents at beginning of period	123,911	134,197
Cash and cash equivalents at end of period	$143,702	$145,303

Description_of_Business_and_Ba

Description of Business and Basis of Presentation	3 Months Ended
	Mar. 31, 2014
Description of Business and Basis of Presentation	'
	1. Description of Business and Basis of Presentation
	We provide proactive identity theft protection services to our consumer subscribers, whom we refer to as our members, on an annual or monthly subscription basis. We also provide fraud and risk solutions to our enterprise customers.
	We were incorporated in Delaware on April 12, 2005 and are headquartered in Tempe, Arizona.  On March 14, 2012, we acquired ID Analytics, Inc. and its wholly-owned subsidiary IDA, Inc., collectively, ID Analytics, each of which is incorporated in Delaware.  On December 11, 2013, we acquired Lemon, Inc., or Lemon, which is incorporated in Delaware.
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States, or U.S. GAAP, and applicable rules and regulations of the Securities and Exchange Commission, or SEC, regarding interim financial reporting. Certain information and note disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Form 10-K/A.
	The condensed consolidated balance sheet as of December 31, 2013 (restated) included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by U.S. GAAP.
	The accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, but are not necessarily indicative of the result of operations to be anticipated for the entire year ending December 31, 2014 or any future period.
	Basis of Consolidation
	The condensed consolidated financial statements include our accounts and those of our wholly-owned subsidiaries. We eliminate all intercompany balances and transactions, including intercompany profits, and unrealized gains and losses in consolidation.
	Use of Estimates
	The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires us to make certain estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. We base our estimates on historical experience, current business factors, and various other assumptions that we believe are necessary to consider in forming a basis for making judgments about the carrying values of assets and liabilities, the recorded amounts of revenue and expenses, and the disclosure of contingent assets and liabilities.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
Summary of Significant Accounting Policies	'
	2. Summary of Significant Accounting Policies
	Restatement
	In connection with the preparation of our financial statements for the third quarter ended September 30, 2014, we identified an error in our calculation of the volatility assumption within the Black-Scholes option pricing model used to compute our share-based compensation expense since our initial public offering in October 2012. We determined that there was an error in the formula used to calculate the annualized volatility, which resulted in a higher volatility and, accordingly, we materially overstated share-based compensation expense.
	To correct this error, we have restated our unaudited condensed consolidated financial statements for the three months ended March 31, 2014 and 2013. The correction of this error resulted in a decrease in our share-based compensation expense for the three months ended March 31, 2014 and 2013 of $1,474 and $472, respectively, and, accordingly, our net loss for the three months ended March 31, 2014 and 2013 decreased by $874 and $575, respectively (including a reduction of income tax benefit for the three-month period ended March 31, 2014 of $600 and a reduction of income tax expense for the three-month period ended March 31, 2013 of $103).
	In a separate matter, unrelated to the error corrections described above, we have also reflected certain purchase price adjustments to our consolidated balance sheet as of December 31, 2013 related to our acquisition of Lemon, Inc., or Lemon, which we previously disclosed in our Form 10-Q for the quarter ended June 30, 2014.  Subsequent to the date of the Original Filing, we determined that $7,894 and $7,991 of Lemon’s federal and state net operating loss carry forwards, respectively, would expire as a result of limitations under Section 382 of the Internal Revenue Code.  ASC 805-10-25-16 requires that adjustments to provisional amounts of assets and liabilities recognized in a business combination be made as if the accounting for the business combination had been completed at the acquisition date and that the financial statements be revised accordingly. As such, we recorded a decrease in deferred tax assets, net – non-current of $3,222, increasing goodwill by the same amount.  This adjustment has been reflected in the December 31, 2013 balances of deferred tax assets, net – non-current and goodwill in the consolidated balance sheet as of December 31, 2013.
	The following tables present the effect of the financial statement restatement adjustments on our previously reported condensed consolidated financial statements as of March 31, 2014 and for the three months ended March 31, 2014 and 2013:
		As of March 31, 2014
		As Previously Reported			Error Corrections			Purchase Price Adjustment			Total Adjustment			As Restated
	Condensed Consolidated Balance Sheet:	(in thousands)
	Deferred tax assets, net	$	16,668		$	(600	)	$	-		$	(600	)	$	16,068
	Total current assets		228,270			(600	)		-			(600	)		227,670
	Goodwill		158,152			-			1,190			1,190			159,342
	Deferred tax assets, net – noncurrent		35,986			(1,585	)		(1,190	)		(2,775	)		33,211
	Total assets		487,015			(2,185	)		-			(2,185	)		484,830
	Additional paid-in capital		479,365			(5,063	)		-			(5,063	)		474,302
	Accumulated deficit		(172,722	)		2,878			-			2,878			(169,844	)
	Total stockholders’ equity		306,725			(2,185	)		-			(2,185	)		304,540
		Three Months Ended March 31, 2014									Three Months Ended March 31, 2013
		As Previously Reported			Adjustment			As Restated			As Previously Reported			Adjustment			As Restated
	Condensed Consolidated Statements of Operations:	(in thousands)
	Cost of services	$	30,067		$	(110	)	$	29,957		$	23,804		$	(14	)	$	23,790
	Gross profit		77,519			110			77,629			58,291			14			58,305
	Sales and marketing		56,847			(308	)		56,539			41,793			(55	)		41,738
	Technology and development		13,148			(419	)		12,729			9,024			(101	)		8,923
	General and administrative		13,972			(637	)		13,335			9,424			(302	)		9,122
	Total costs and expenses		86,198			(1,364	)		84,834			62,207			(458	)		61,749
	Loss from operations		(8,679	)		1,474			(7,205	)		(3,916	)		472			(3,444	)
	Loss before provision for income taxes		(8,717	)		1,474			(7,243	)		(3,967	)		472			(3,495	)
	Income tax (benefit) expense		(3,548	)		600			(2,948	)		150			(103	)		47
	Net loss		(5,169	)		874			(4,295	)		(4,117	)		575			(3,542	)
	Basic earnings per share	$	(0.06	)	$	0.01		$	(0.05	)	$	(0.05	)	$	0.01		$	(0.04	)
	Diluted earnings per share	$	(0.06	)	$	0.01		$	(0.05	)	$	(0.05	)	$	0.01		$	(0.04	)
		Three Months Ended March 31, 2014									Three Months Ended March 31, 2013
		As Previously Reported			Adjustment			As Restated			As Previously Reported			Adjustment			As Restated
	Condensed Consolidated Statements of Cash Flows:	(in thousands)
	Net loss	$	(5,169	)	$	874		$	(4,295	)	$	(4,117	)	$	575		$	(3,542	)
	Share-based compensation		5,475			(1,474	)		4,001			2,724			(472	)		2,252
	Deferred income tax benefit		(3,551	)		600			(2,951	)		—			(103	)		(103	)
	As the adjustments made to correct the errors in share-based compensation expense and income taxes were non-cash transactions, there was no effect to cash flows provided by or used in operating activities, investing activities, or financing activities.
	Significant Accounting Policies
	There have been no material changes to our significant accounting policies as compared to the significant accounting policies described in our Form 10-K/A.
	Recently Issued Accounting Standards
	In April 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update (ASU) No. 2014-08, Reporting Discontinued Operations and Disclosures of Components of an Entity, which changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements.  The updated guidance defines discontinued operations as a disposal of a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results and expands the disclosure requirements for discontinued operations and adds new disclosures for individually significant dispositions that do not qualify as discontinued operations.  ASU No. 2014-08 is effective for fiscal years, and interim reporting periods within those years, beginning after December 15, 2014.  ASU No. 2014-08 would be applied to any future applicable transaction.

Business_Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2014
Business Combinations	'
	3. Business Combinations
	Acquisition of Lemon
	On December 11, 2013, we acquired Lemon, a mobile wallet innovator. In connection with this acquisition, we launched our new LifeLock mobile application. The aggregate purchase price consisted of approximately $42,369 of cash paid at the closing (net of cash acquired of $3,315).  We preliminarily allocated the total purchase consideration to the assets acquired and liabilities assumed at their estimated fair values as of the date of acquisition, as determined by management, and, with respect to identifiable intangible assets, by management with the assistance of a valuation provided by a third-party valuation firm. We recorded the excess of the purchase price over the amounts allocated to assets acquired and liabilities assumed as goodwill in our consumer segment.
	We accounted for this acquisition using the acquisition method in accordance with Accounting Standards Codification, or ASC, 805, Business Combinations. Accordingly, we allocated the purchase price of the acquired assets and liabilities based on their estimated fair values as of the acquisition date as summarized in the following table:
	Net assets assumed	$	3,184
	Deferred tax assets, net – noncurrent		8,706
	Intangible assets acquired		3,880
	Goodwill		29,914
	Total purchase price consideration	$	45,684

Marketable_Securities

Marketable Securities	3 Months Ended
	Mar. 31, 2014
Marketable Securities	'
	4. Marketable Securities
	The following is summary of marketable securities designated as available-for-sale as of March 31, 2014:
				Gross		Gross
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Value
	Corporate bonds	$	34,247	$	-	$	(19	)	$	34,228
	Municipal bonds		12,798		1		(3	)		12,796
	Certificates of deposit		498		-		-			498
	Total marketable securities	$	47,543	$	1	$	(22	)	$	47,522
	All marketable securities are classified as current regardless of contractual maturity dates because we consider such investments to represent cash available for current operations.
	As of March 31, 2014, we did not consider any of our marketable securities to be other-than-temporarily impaired. When evaluating our investments for other-than-temporary impairment, we review factors such as the length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer, our ability and intent to hold the security and whether it is more likely than not that we will be required to sell the investment before recovery of its cost basis.
	The following is a summary of amortized cost and estimated fair value of marketable securities as of March 31, 2014, by maturity:
				Gross		Gross
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Value
	Due in one year or less	$	47,543	$	1	$	(22	)	$	47,522
	Due after one year		-		-		-			-
	Total marketable securities	$	47,543	$	1	$	(22	)	$	47,522
	The following is summary of marketable securities designated as available-as-sale as of December 31, 2013:
				Gross		Gross
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Value
	Corporate bonds	$	37,399	$	1	$	(29	)	$	37,371
	Municipal bonds		10,820		2		(3	)		10,819
	Certificates of deposit		498		-		-			498
	Total marketable securities	$	48,717	$	3	$	(32	)	$	48,688
	The following is a summary of amortized cost and estimated fair value of marketable securities as of December 31, 2013, by maturity:
				Gross		Gross
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Value
	Due in one year or less	$	47,398	$	3	$	(32	)	$	47,369
	Due after one year		1,319		-		-			1,319
	Total marketable securities	$	48,717	$	3	$	(32	)	$	48,688

Stockholders_Equity_Restated

Stockholders' Equity (Restated)	3 Months Ended
	Mar. 31, 2014
Stockholders' Equity (Restated)	'
	5. Stockholders’ Equity (Restated)
	Share-Based Compensation
	We issue share-based awards to our employees in the form of stock options, restricted stock units, and restricted stock. We also have an employee stock purchase plan. The following table summarizes the components of share-based compensation expense included in our condensed consolidated statement of operations for the three-month periods ended March 31:
		For the Three Months Ended
		March 31,
		2014			2013
		(Restated)			(Restated)
		(in thousands)
	Cost of services	$	232		$	192
	Sales and marketing		586			278
	Technology and development		1,555			414
	General and administrative		1,628			1,368
	Total share-based compensation	$	4,001		$	2,251
	Unrecognized share-based compensation expenses totaled $59,608 (restated) as of March 31, 2014, which we expect to recognize over a weighted-average time period of 3.2 years.
	Stock Warrants
	As of March 31, 2014, we had the following warrants to purchase common stock outstanding:
	Expiration Date		Shares			Exercise
						Price
	October 3, 2016			2,334,044			0.7
	December 19, 2014			166,666			4.5

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
Fair Value Measurements	'
	6. Fair Value Measurements
	As of March 31, 2014 and December 31, 2013, the fair value of our financial assets was as follows:
		Level 1		Level 2		Level 3		Total
	31-Mar-14
	Assets:
	Commercial paper (1)	$	-	$	45,134	$	-	$	45,134
	Money market funds (1)		2,036		-		-		2,036
	Corporate bonds (2)		-		34,228		-		34,228
	Municipal bonds (2)		-		12,796		-		12,796
	Certificates of deposit (2)		-		498		-		498
	Total assets measured at fair value	$	2,036	$	92,656	$	-	$	94,692
	31-Dec-13
	Assets:
	Commercial paper (1)	$	-	$	45,110	$	-	$	45,110
	Money market funds (1)		911		-		-		911
	Corporate bonds (2)		-		37,371		-		37,371
	Municipal bonds (2)		-		10,819		-		10,819
	Certificates of deposit (2)		-		498		-		498
	Total assets measured at fair value	$	911	$	93,798	$	-	$	94,709
	-1	Classified in cash and cash equivalents
	-2	Classified in marketable securities
	The fair values of our cash equivalents and available-for-sale securities included in the Level 1 and Level 2 categories are obtained from an independent pricing service, which uses a model driven valuation technique using observable market data or inputs corroborated by observable market data.

Net_Loss_Per_Share_Restated

Net Loss Per Share (Restated)	3 Months Ended
	Mar. 31, 2014
Net Loss Per Share (Restated)	'
	7. Net Loss Per Share (Restated)
	The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the three-month periods ended March 31:
		For the Three Months Ended
		March 31,
		2014			2013
		(Restated)			(Restated)
	Net loss	$	(4,295	)	$	(3,542	)
	Denominator (basic and diluted):
	Weighted average common shares outstanding		91,903,036			86,639,538
	Net loss attributable per share to common stockholders:
	Basic	$	(0.05	)	$	(0.04	)
	Diluted	$	(0.05	)	$	(0.04	)
	For the three-month periods ended March 31, 2014 and 2013, potentially dilutive securities are not included in the calculation of diluted loss per share as their impact would be anti-dilutive. The following weighted-average number of outstanding stock options, restricted stock units and restricted stock awards, common equivalent shares from stock warrants, and shares purchased under our Employee Stock Purchase Plan, or ESPP, were excluded from the computation of diluted net loss per share for the three-month periods ended March 31:
		For the Three Months Ended
		March 31,
		2014			2013
		(Restated)			(Restated)
	Stock options outstanding		5,131,673			5,603,232
	Restricted stock units and restricted stock awards		217,010			49,484
	Common equivalent shares from stock warrants		2,378,641			2,322,597
	Shares purchased under ESPP		25,105			5,783
			7,752,429			7,981,096

Segment_Reporting_Restated

Segment Reporting (Restated)	3 Months Ended
	Mar. 31, 2014
Segment Reporting (Restated)	'
	8. Segment Reporting (Restated)
	Following our acquisition of ID Analytics in the first quarter of 2012, we began operating our business and reviewing and assessing our operating performance using two reportable segments: our consumer segment and our enterprise segment. In our consumer segment, we offer proactive identity theft protection services to our members on an annual or monthly subscription basis. In our enterprise segment, we offer fraud and risk solutions to our enterprise customers.
	Financial information about our segments during the three-month period ended March 31, 2014 and as of March 31, 2014 was as follows (restated):
		Consumer			Enterprise			Eliminations			Total
	Revenue:
	External customers	$	100,995		$	6,591		$	—		$	107,586
	Intersegment revenue		—			1,514			(1,514	)		—
	Loss from operations		(3,268	)		(3,937	)		—			(7,205	)
	Goodwill		99,805			59,537			—			159,342
	Total assets		374,463			110,882			(515	)		484,830
	Financial information about our segments during the three-month period ended March 31, 2013 and as of December 31, 2013 was as follows (restated):
		Consumer			Enterprise			Eliminations			Total
	Revenue:
	External customers	$	75,094		$	7,001		$	—		$	82,095
	Intersegment revenue		—			1,237			(1,237	)		—
	Loss from operations		(229	)		(3,215	)		—			(3,444	)
	Goodwill		99,805			59,537			—			159,342
	Total assets		348,000			114,146			(481	)		461,665
	We allocated goodwill between our segments by estimating the expected synergies to each segment.
	We derive all of our revenue from sales in the United States, and substantially all of our long-lived assets are located in the United States.

Income_Taxes_Restated

Income Taxes (Restated)	3 Months Ended
	Mar. 31, 2014
Income Taxes (Restated)	'
	9. Income Taxes (Restated)
	Income taxes for the interim periods presented have been included in the accompanying condensed consolidated financial statements on the basis of an estimated annual effective tax rate.  Based on an estimated annual effective tax rate and discrete items, the estimated income tax (benefit) expense from operations for the three-month periods ended March 31, 2014 and 2013 was approximately $(2,948) (restated) and $47 (restated), respectively.  The determination of the interim period income tax provision utilizes the effective tax rate method, which requires us to estimate certain annualized components of the calculation of the income tax provision, including the annual effective tax rate by entity and jurisdiction.

Contingencies

Contingencies	3 Months Ended
	Mar. 31, 2014
Contingencies	'
	10. Contingencies
	As part of our consumer services, we offer 24x7x365 member service support. If a member’s identity has been compromised, our member service team and remediation specialists will assist the member until the issue has been resolved. This includes our $1 million service guarantee, which is backed by an identity theft insurance policy, under which we will spend up to $1 million to cover certain third-party costs and expenses incurred in connection with the remediation, such as legal and investigatory fees. This insurance also covers certain out-of-pocket expenses, such as loss of income, replacement of fraudulent withdrawals, and costs associated with child and elderly care, travel, and replacement of documents. While we have reimbursed members for claims under this guarantee, the amounts in aggregate for the three-month periods ended March 31, 2014 and 2013 were not material.
	In September 2012, Denise Richardson filed a complaint against our company and Todd Davis. Ms. Richardson claims that she was improperly classified as an independent contractor instead of an employee and that we breached the terms of an alleged employment agreement. Ms. Richardson claims she is entitled to equitable relief, compensatory damages, liquidated damages, statutory penalties, punitive damages, interest, costs, and attorneys’ fees. On March 31, 2014, our motion to dismiss was granted in part and denied in part with the court dismissing nine of the ten counts that were subject to the motion to dismiss, including the single count against Mr. Davis.  On April 23, 2014, Ms. Richardson filed an amended complaint against our company and Mr. Davis again claiming that she was improperly classified as an independent contractor instead of an employee and that we breached the terms of an alleged employment agreement. Ms. Richardson claims she is entitled to equitable relief, compensatory damages, liquidated damages, statutory penalties, punitive damages, interest, costs, and attorneys’ fees.  We have until May 14, 2014 to respond to the most recently filed complaint.
	On March 3, 2014, Dawn B. Bien, representing herself and seeking to represent a class of persons who acquired our securities from February 26, 2013 to February 19, 2014, inclusive, or the Class Period, filed a complaint in United States District Court for the District of Arizona against us, Todd Davis, and Chris Power.  We refer to this complaint as the Bien Complaint.  The Bien Complaint alleges that we and Messrs. Davis and Power, in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, or the Exchange Act,  disseminated materially false or misleading information, or failed to disclose material facts during the Class Period in connection with our business and our operational and compliance policies, including our and Mr. Davis’s compliance with the  Stipulated Final Judgment and Order for Permanent Injunction and Other Equitable Relief entered into in March 2010 with the Federal Trade Commission, or the FTC Order, wherein we settled allegations by the Federal Trade Commission challenging certain of our advertising and marketing.  The Bien Complaint also contends that as a result of alleged violations of governmental laws, regulations, and the FTC Order, our financial statements were materially false and misleading at all relevant times.  The Bien Complaint seeks certification as a class action, compensatory damages, and attorneys’ fees and costs. On March 10, 2014, Joseph F. Scesny, representing himself and seeking to represent a class of persons who acquired our securities from February 26, 2013 to February 19, 2014, inclusive, filed a complaint in United States District Court for the District of Arizona against us, Todd Davis, and Chris Power.  We refer to this complaint as the Scesny Complaint. The Scesny Complaint is substantially similar to the Bien Complaint and seeks substantially similar relief. We anticipate that the Bien Complaint and Scesny Complaint will be consolidated into one action and that the court will select a lead plaintiff as provided by the federal securities laws governing purported class action cases.
	On March 13, 2014, we received a request from the Federal Trade Commission, or the FTC, for documents and information related to our compliance with the FTC Order.   Prior to our receipt of the FTC’s request, we met with FTC Staff on January 17, 2014, at our request, to discuss issues regarding allegations that have been asserted in a whistleblower claim against us relating to our compliance with the FTC Order.  We are cooperating with the FTC in regards to its request and are currently in the process of providing the documents and information requested by the FTC.
	On March 20, 2014, Michael D. Peters filed a complaint in United States District Court for the District of Arizona against our company, Kim Jones, and Cristy Schaan.  Mr. Jones is not affiliated with us.  Ms. Schaan is our Chief Information Security Officer.  In his complaint, Mr. Peters alleges that we violated the whistleblower protection provisions of the Sarbanes-Oxley Act of 2002, or the Sarbanes-Oxley Act, and the Dodd-Frank Wall Street Reform and Consumer Protection Act, or the Dodd-Frank Act, by terminating Mr. Peters’ employment as a result of alleged disclosures that he made to us, and that Ms. Schaan defamed Mr. Peters.  Mr. Peters seeks from us two times his back pay, two times the value of certain stock options and bonus, moving expenses, damages for emotional harm and anxiety, damages for harm to reputation, litigation costs including attorneys’ fees, and interest, and seeks from Ms. Schaan actual damages, punitive damages, and interest.  On April 21, 2014, we filed an answer, affirmative defenses, and counterclaims, answering Mr. Peters’ claim under the Sarbanes-Oxley Act and asserting counterclaims against Mr. Peters for fraud, negligent misrepresentation, breach of contract, and unjust enrichment, based on our allegations that we were induced to hire Mr. Peters by his false statements and misrepresentations regarding his employment history and seeking to recover actual and consequential damages, punitive damages, attorneys’ fees, and the $15 signing bonus paid to Mr. Peters.  Mr. Peters’ response to the counterclaim is due on May 15, 2014.  On April 21, 2014, we also filed a motion to dismiss Mr. Peters’ claim under the Dodd-Frank Act.  Mr. Peters’ response to that motion to dismiss is due on May 15, 2014.  On April 25, 2014, Ms. Schaan filed a motion to dismiss Mr. Peters’ claim against her.  Mr. Peters’ response to that motion to dismiss is due on May 19, 2014.
	We are subject to other legal proceedings and claims that have arisen in the ordinary course of business. Although there can be no assurance as to the ultimate disposition of these matters and the proceedings disclosed above, we believe, based upon the information available at this time, that a material adverse outcome related to the matters is neither probable nor estimable.

Description_of_Business_and_Ba1

Description of Business and Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2014
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States, or U.S. GAAP, and applicable rules and regulations of the Securities and Exchange Commission, or SEC, regarding interim financial reporting. Certain information and note disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Form 10-K/A.
	The condensed consolidated balance sheet as of December 31, 2013 (restated) included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by U.S. GAAP.
	The accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, but are not necessarily indicative of the result of operations to be anticipated for the entire year ending December 31, 2014 or any future period.
Basis of Consolidation	'
	Basis of Consolidation
	The condensed consolidated financial statements include our accounts and those of our wholly-owned subsidiaries. We eliminate all intercompany balances and transactions, including intercompany profits, and unrealized gains and losses in consolidation.
Use of Estimates	'
	Use of Estimates
	The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires us to make certain estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. We base our estimates on historical experience, current business factors, and various other assumptions that we believe are necessary to consider in forming a basis for making judgments about the carrying values of assets and liabilities, the recorded amounts of revenue and expenses, and the disclosure of contingent assets and liabilities.
Significant Accounting Policies	'
	Significant Accounting Policies
	There have been no material changes to our significant accounting policies as compared to the significant accounting policies described in our Form 10-K/A.
Recently Issued Accounting Standards	'
	Recently Issued Accounting Standards
	In April 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update (ASU) No. 2014-08, Reporting Discontinued Operations and Disclosures of Components of an Entity, which changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements.  The updated guidance defines discontinued operations as a disposal of a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results and expands the disclosure requirements for discontinued operations and adds new disclosures for individually significant dispositions that do not qualify as discontinued operations.  ASU No. 2014-08 is effective for fiscal years, and interim reporting periods within those years, beginning after December 15, 2014.  ASU No. 2014-08 would be applied to any future applicable transaction.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2014
Effect of Financial Statement Restatements Included Within Interim Financial Statements	'
	The following tables present the effect of the financial statement restatement adjustments on our previously reported condensed consolidated financial statements as of March 31, 2014 and for the three months ended March 31, 2014 and 2013:
		As of March 31, 2014
		As Previously Reported			Error Corrections			Purchase Price Adjustment			Total Adjustment			As Restated
	Condensed Consolidated Balance Sheet:	(in thousands)
	Deferred tax assets, net	$	16,668		$	(600	)	$	-		$	(600	)	$	16,068
	Total current assets		228,270			(600	)		-			(600	)		227,670
	Goodwill		158,152			-			1,190			1,190			159,342
	Deferred tax assets, net – noncurrent		35,986			(1,585	)		(1,190	)		(2,775	)		33,211
	Total assets		487,015			(2,185	)		-			(2,185	)		484,830
	Additional paid-in capital		479,365			(5,063	)		-			(5,063	)		474,302
	Accumulated deficit		(172,722	)		2,878			-			2,878			(169,844	)
	Total stockholders’ equity		306,725			(2,185	)		-			(2,185	)		304,540
		Three Months Ended March 31, 2014									Three Months Ended March 31, 2013
		As Previously Reported			Adjustment			As Restated			As Previously Reported			Adjustment			As Restated
	Condensed Consolidated Statements of Operations:	(in thousands)
	Cost of services	$	30,067		$	(110	)	$	29,957		$	23,804		$	(14	)	$	23,790
	Gross profit		77,519			110			77,629			58,291			14			58,305
	Sales and marketing		56,847			(308	)		56,539			41,793			(55	)		41,738
	Technology and development		13,148			(419	)		12,729			9,024			(101	)		8,923
	General and administrative		13,972			(637	)		13,335			9,424			(302	)		9,122
	Total costs and expenses		86,198			(1,364	)		84,834			62,207			(458	)		61,749
	Loss from operations		(8,679	)		1,474			(7,205	)		(3,916	)		472			(3,444	)
	Loss before provision for income taxes		(8,717	)		1,474			(7,243	)		(3,967	)		472			(3,495	)
	Income tax (benefit) expense		(3,548	)		600			(2,948	)		150			(103	)		47
	Net loss		(5,169	)		874			(4,295	)		(4,117	)		575			(3,542	)
	Basic earnings per share	$	(0.06	)	$	0.01		$	(0.05	)	$	(0.05	)	$	0.01		$	(0.04	)
	Diluted earnings per share	$	(0.06	)	$	0.01		$	(0.05	)	$	(0.05	)	$	0.01		$	(0.04	)
		Three Months Ended March 31, 2014									Three Months Ended March 31, 2013
		As Previously Reported			Adjustment			As Restated			As Previously Reported			Adjustment			As Restated
	Condensed Consolidated Statements of Cash Flows:	(in thousands)
	Net loss	$	(5,169	)	$	874		$	(4,295	)	$	(4,117	)	$	575		$	(3,542	)
	Share-based compensation		5,475			(1,474	)		4,001			2,724			(472	)		2,252
	Deferred income tax benefit		(3,551	)		600			(2,951	)		—			(103	)		(103	)

Business_Combinations_Tables

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2014
Schedule of Purchase Price of Acquired Assets and Liabilities Based on Estimated Fair Values	'
	We accounted for this acquisition using the acquisition method in accordance with Accounting Standards Codification, or ASC, 805, Business Combinations. Accordingly, we allocated the purchase price of the acquired assets and liabilities based on their estimated fair values as of the acquisition date as summarized in the following table:
	Net assets assumed	$	3,184
	Deferred tax assets, net – noncurrent		8,706
	Intangible assets acquired		3,880
	Goodwill		29,914
	Total purchase price consideration	$	45,684

Marketable_Securities_Tables

Marketable Securities (Tables)	3 Months Ended
	Mar. 31, 2014
Summary of Marketable Securities Designated as Available-for-Sale	'
	The following is summary of marketable securities designated as available-for-sale as of March 31, 2014:
				Gross		Gross
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Value
	Corporate bonds	$	34,247	$	-	$	(19	)	$	34,228
	Municipal bonds		12,798		1		(3	)		12,796
	Certificates of deposit		498		-		-			498
	Total marketable securities	$	47,543	$	1	$	(22	)	$	47,522
	The following is summary of marketable securities designated as available-as-sale as of December 31, 2013:
				Gross		Gross
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Value
	Corporate bonds	$	37,399	$	1	$	(29	)	$	37,371
	Municipal bonds		10,820		2		(3	)		10,819
	Certificates of deposit		498		-		-			498
	Total marketable securities	$	48,717	$	3	$	(32	)	$	48,688
Summary of Amortized Cost and Estimated Fair Value of Marketable Securities by Maturity	'
	The following is a summary of amortized cost and estimated fair value of marketable securities as of March 31, 2014, by maturity:
				Gross		Gross
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Value
	Due in one year or less	$	47,543	$	1	$	(22	)	$	47,522
	Due after one year		-		-		-			-
	Total marketable securities	$	47,543	$	1	$	(22	)	$	47,522
	The following is a summary of amortized cost and estimated fair value of marketable securities as of December 31, 2013, by maturity:
				Gross		Gross
		Amortized		Unrealized		Unrealized			Estimated
		Cost		Gains		Losses			Fair Value
	Due in one year or less	$	47,398	$	3	$	(32	)	$	47,369
	Due after one year		1,319		-		-			1,319
	Total marketable securities	$	48,717	$	3	$	(32	)	$	48,688

Stockholders_EquityRestated_Ta

Stockholders' Equity(Restated) (Tables)	3 Months Ended
	Mar. 31, 2014
Summary of Components of Share-Based Compensation Expense	'
	We issue share-based awards to our employees in the form of stock options, restricted stock units, and restricted stock. We also have an employee stock purchase plan. The following table summarizes the components of share-based compensation expense included in our condensed consolidated statement of operations for the three-month periods ended March 31:
		For the Three Months Ended
		March 31,
		2014			2013
		(Restated)			(Restated)
		(in thousands)
	Cost of services	$	232		$	192
	Sales and marketing		586			278
	Technology and development		1,555			414
	General and administrative		1,628			1,368
	Total share-based compensation	$	4,001		$	2,251
Warrant Purchase	'
	As of March 31, 2014, we had the following warrants to purchase common stock outstanding:
	Expiration Date		Shares			Exercise
						Price
	October 3, 2016			2,334,044			0.7
	December 19, 2014			166,666			4.5

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value of Financial Assets and Liabilities	'
	As of March 31, 2014 and December 31, 2013, the fair value of our financial assets was as follows:
		Level 1		Level 2		Level 3		Total
	31-Mar-14
	Assets:
	Commercial paper (1)	$	-	$	45,134	$	-	$	45,134
	Money market funds (1)		2,036		-		-		2,036
	Corporate bonds (2)		-		34,228		-		34,228
	Municipal bonds (2)		-		12,796		-		12,796
	Certificates of deposit (2)		-		498		-		498
	Total assets measured at fair value	$	2,036	$	92,656	$	-	$	94,692
	31-Dec-13
	Assets:
	Commercial paper (1)	$	-	$	45,110	$	-	$	45,110
	Money market funds (1)		911		-		-		911
	Corporate bonds (2)		-		37,371		-		37,371
	Municipal bonds (2)		-		10,819		-		10,819
	Certificates of deposit (2)		-		498		-		498
	Total assets measured at fair value	$	911	$	93,798	$	-	$	94,709
	-1	Classified in cash and cash equivalents
	-2	Classified in marketable securities

Net_Loss_Per_Share_Restated_Ta

Net Loss Per Share (Restated) (Tables)	3 Months Ended
	Mar. 31, 2014
Basic and Diluted Net Loss Per Share Attributable to Common Stockholders	'
	The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the three-month periods ended March 31:
		For the Three Months Ended
		March 31,
		2014			2013
		(Restated)			(Restated)
	Net loss	$	(4,295	)	$	(3,542	)
	Denominator (basic and diluted):
	Weighted average common shares outstanding		91,903,036			86,639,538
	Net loss attributable per share to common stockholders:
	Basic	$	(0.05	)	$	(0.04	)
	Diluted	$	(0.05	)	$	(0.04	)
Stock Options, Restricted Stock Units and Awards, Common Equivalent Shares from Stock Warrants, and Shares Purchased Under our Employee Stock Purchase Plan, or Espp Excluded from Computation of Diluted Net Loss Per Share	'
	For the three-month periods ended March 31, 2014 and 2013, potentially dilutive securities are not included in the calculation of diluted loss per share as their impact would be anti-dilutive. The following weighted-average number of outstanding stock options, restricted stock units and restricted stock awards, common equivalent shares from stock warrants, and shares purchased under our Employee Stock Purchase Plan, or ESPP, were excluded from the computation of diluted net loss per share for the three-month periods ended March 31:
		For the Three Months Ended
		March 31,
		2014			2013
		(Restated)			(Restated)
	Stock options outstanding		5,131,673			5,603,232
	Restricted stock units and restricted stock awards		217,010			49,484
	Common equivalent shares from stock warrants		2,378,641			2,322,597
	Shares purchased under ESPP		25,105			5,783
			7,752,429			7,981,096

Segment_Reporting_Restated_Tab

Segment Reporting (Restated) (Tables)	3 Months Ended
	Mar. 31, 2014
Financial Information of Segments	'
	Financial information about our segments during the three-month period ended March 31, 2014 and as of March 31, 2014 was as follows (restated):
		Consumer			Enterprise			Eliminations			Total
	Revenue:
	External customers	$	100,995		$	6,591		$	—		$	107,586
	Intersegment revenue		—			1,514			(1,514	)		—
	Loss from operations		(3,268	)		(3,937	)		—			(7,205	)
	Goodwill		99,805			59,537			—			159,342
	Total assets		374,463			110,882			(515	)		484,830
	Financial information about our segments during the three-month period ended March 31, 2013 and as of December 31, 2013 was as follows (restated):
		Consumer			Enterprise			Eliminations			Total
	Revenue:
	External customers	$	75,094		$	7,001		$	—		$	82,095
	Intersegment revenue		—			1,237			(1,237	)		—
	Loss from operations		(229	)		(3,215	)		—			(3,444	)
	Goodwill		99,805			59,537			—			159,342
	Total assets		348,000			114,146			(481	)		461,665

Description_of_Business_and_Ba2

Description of Business and Basis of Presentation - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2014
Basis Of Presentation And Organization [Line Items]	'
Acquisition date of ID Analytics Inc	14-Mar-12

Summary_of_Significant_Account2

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Share-based compensation	$4,001	$2,252	'
Net loss	-4,295	-3,542	'
Income tax (benefit) expense	-2,948	47	'
Goodwill	159,342	'	159,342
Federal	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Net operating loss carryforwards, expiration amount	'	'	7,894
State	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Net operating loss carryforwards, expiration amount	'	'	7,991
Adjustment	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Share-based compensation	-1,474	-472	'
Net loss	874	575	'
Income tax (benefit) expense	600	-103	'
Goodwill	1,190	'	'
Adjustment | Lemon Inc	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Deferred tax asset, noncurrent	'	'	-3,222
Goodwill	'	'	$3,222

Effect_of_Financial_Statement_

Effect of Financial Statement Restatements Included Within Interim Financial Statements (Detail) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Condensed Consolidated Balance Sheet:	'	'	'
Deferred tax assets, net	$16,068	'	$13,117
Total current assets	227,670	'	203,583
Goodwill	159,342	'	159,342
Deferred tax assets, net – noncurrent	33,211	'	33,211
Total assets	484,830	'	461,665
Additional paid-in capital	474,302	'	466,046
Accumulated deficit	-169,844	'	-165,548
Total stockholders’ equity	304,540	'	300,571
Condensed Consolidated Statements of Operations:	'	'	'
Cost of services	29,957	23,790	'
Gross profit	77,629	58,305	'
Sales and marketing	56,539	41,738	'
Technology and development	12,729	8,923	'
General and administrative	13,335	9,122	'
Total costs and expenses	84,834	61,749	'
Loss from operations	-7,205	-3,444	'
Loss before provision for income taxes	-7,243	-3,495	'
Income tax (benefit) expense	-2,948	47	'
Net loss	-4,295	-3,542	'
Basic earnings per share	($0.05)	($0.04)	'
Diluted earnings per share	($0.05)	($0.04)	'
Condensed Consolidated Statements of Cash Flows:	'	'	'
Net loss	-4,295	-3,542	'
Share-based compensation	4,001	2,252	'
Deferred income tax benefit	-2,951	-103	'
As Previously Reported	'	'	'
Condensed Consolidated Balance Sheet:	'	'	'
Deferred tax assets, net	16,668	'	'
Total current assets	228,270	'	'
Goodwill	158,152	'	'
Deferred tax assets, net – noncurrent	35,986	'	'
Total assets	487,015	'	'
Additional paid-in capital	479,365	'	'
Accumulated deficit	-172,722	'	'
Total stockholders’ equity	306,725	'	'
Condensed Consolidated Statements of Operations:	'	'	'
Cost of services	30,067	23,804	'
Gross profit	77,519	58,291	'
Sales and marketing	56,847	41,793	'
Technology and development	13,148	9,024	'
General and administrative	13,972	9,424	'
Total costs and expenses	86,198	62,207	'
Loss from operations	-8,679	-3,916	'
Loss before provision for income taxes	-8,717	-3,967	'
Income tax (benefit) expense	-3,548	150	'
Net loss	-5,169	-4,117	'
Basic earnings per share	($0.06)	($0.05)	'
Diluted earnings per share	($0.06)	($0.05)	'
Condensed Consolidated Statements of Cash Flows:	'	'	'
Net loss	-5,169	-4,117	'
Share-based compensation	5,475	2,724	'
Deferred income tax benefit	-3,551	'	'
Adjustment	'	'	'
Condensed Consolidated Balance Sheet:	'	'	'
Deferred tax assets, net	-600	'	'
Total current assets	-600	'	'
Goodwill	1,190	'	'
Deferred tax assets, net – noncurrent	-2,775	'	'
Total assets	-2,185	'	'
Additional paid-in capital	-5,063	'	'
Accumulated deficit	2,878	'	'
Total stockholders’ equity	-2,185	'	'
Condensed Consolidated Statements of Operations:	'	'	'
Cost of services	-110	-14	'
Gross profit	110	14	'
Sales and marketing	-308	-55	'
Technology and development	-419	-101	'
General and administrative	-637	-302	'
Total costs and expenses	-1,364	-458	'
Loss from operations	1,474	472	'
Loss before provision for income taxes	1,474	472	'
Income tax (benefit) expense	600	-103	'
Net loss	874	575	'
Basic earnings per share	$0.01	$0.01	'
Diluted earnings per share	$0.01	$0.01	'
Condensed Consolidated Statements of Cash Flows:	'	'	'
Net loss	874	575	'
Share-based compensation	-1,474	-472	'
Deferred income tax benefit	600	-103	'
Adjustment | Error Correction	'	'	'
Condensed Consolidated Balance Sheet:	'	'	'
Deferred tax assets, net	-600	'	'
Total current assets	-600	'	'
Deferred tax assets, net – noncurrent	-1,585	'	'
Total assets	-2,185	'	'
Additional paid-in capital	-5,063	'	'
Accumulated deficit	2,878	'	'
Total stockholders’ equity	-2,185	'	'
Adjustment | Purchase Price Adjustment	'	'	'
Condensed Consolidated Balance Sheet:	'	'	'
Goodwill	1,190	'	'
Deferred tax assets, net – noncurrent	($1,190)	'	'

Business_Combinations_Addition

Business Combinations - Additional Information (Detail) (Lemon Inc, USD $)	0 Months Ended
In Thousands, unless otherwise specified	Dec. 11, 2013
Lemon Inc	'
Business Acquisition [Line Items]	'
Cash paid for acquisition	$42,369
Purchase price net of cash acquired	$3,315

Schedule_of_Purchase_Price_of_

Schedule of Purchase Price of Acquired Assets and Liabilities Based on Estimated Fair Values (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Business Acquisition [Line Items]	'	'
Goodwill	$159,342	$159,342
Lemon Inc	'	'
Business Acquisition [Line Items]	'	'
Net assets assumed	3,184	'
Deferred tax assets, net – noncurrent	8,706	'
Intangible assets acquired	3,880	'
Goodwill	29,914	'
Total purchase price consideration	$45,684	'

Summary_of_Marketable_Securiti

Summary of Marketable Securities Designated as Available-for-Sale (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule Of Marketable Securities [Line Items]	'	'
Amortized Cost	$47,543	$48,717
Gross Unrealized Gains	1	3
Gross Unrealized Losses	-22	-32
Estimated Fair Value	47,522	48,688
Corporate bonds	'	'
Schedule Of Marketable Securities [Line Items]	'	'
Amortized Cost	34,247	37,399
Gross Unrealized Gains	0	1
Gross Unrealized Losses	-19	-29
Estimated Fair Value	34,228	37,371
Municipal bonds	'	'
Schedule Of Marketable Securities [Line Items]	'	'
Amortized Cost	12,798	10,820
Gross Unrealized Gains	1	2
Gross Unrealized Losses	-3	-3
Estimated Fair Value	12,796	10,819
Certificates of deposit	'	'
Schedule Of Marketable Securities [Line Items]	'	'
Amortized Cost	498	498
Gross Unrealized Gains	0	'
Gross Unrealized Losses	0	'
Estimated Fair Value	$498	$498

Summary_of_Amortized_Cost_and_

Summary of Amortized Cost and Estimated Fair Value of Marketable Securities by Maturity (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule Of Marketable Securities [Line Items]	'	'
Amortized Cost	$47,543	$48,717
Gross Unrealized Gains	1	3
Gross Unrealized Losses	-22	-32
Estimated Fair Value	47,522	48,688
Due in one year or less	'	'
Schedule Of Marketable Securities [Line Items]	'	'
Amortized Cost	47,543	47,398
Gross Unrealized Gains	1	3
Gross Unrealized Losses	-22	-32
Estimated Fair Value	47,522	47,369
Due after one year	'	'
Schedule Of Marketable Securities [Line Items]	'	'
Amortized Cost	0	1,319
Gross Unrealized Gains	0	'
Gross Unrealized Losses	0	'
Estimated Fair Value	$0	$1,319

Summary_of_Components_of_Share

Summary of Components of Share-Based Compensation Expense (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'
Total share-based compensation expense	$4,001	$2,251
Cost of services	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'
Total share-based compensation expense	232	192
Sales and marketing	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'
Total share-based compensation expense	586	278
Technology and development	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'
Total share-based compensation expense	1,555	414
General and administrative	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'
Total share-based compensation expense	$1,628	$1,368

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Class Of Stock [Line Items]	'
Unrecognized share based compensation	$59,608
Share based compensation recognizing period	'3 years 2 months 12 days

Warrants_Purchase_Detail

Warrants Purchase (Detail) (Common Stock)	3 Months Ended
	Mar. 31, 2014
Expiration Date October 3, 2014	'
Class Of Warrant Or Right [Line Items]	'
Expiration Date	3-Oct-16
Number	2,334,044
Exercise Price	0.7
Expiration Date December 19, 2014	'
Class Of Warrant Or Right [Line Items]	'
Expiration Date	19-Dec-14
Number	166,666
Exercise Price	4.5

Fair_Value_of_Financial_Assets

Fair Value of Financial Assets and Liabilities (Detail) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Total assets measured at fair value	$94,692		$94,709
Commercial paper	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	45,134	[1]	45,110	[1]
Money market funds	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	2,036	[1]	911	[1]
Fair Value, Inputs, Level 1	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Total assets measured at fair value	2,036		911
Fair Value, Inputs, Level 1 | Money market funds	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	2,036	[1]	911	[1]
Fair Value, Inputs, Level 2	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Total assets measured at fair value	92,656		93,798
Fair Value, Inputs, Level 2 | Commercial paper	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	45,134	[1]	45,110	[1]
Fair Value, Inputs, Level 2 | Money market funds	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	'	[1]	'	[1]
Corporate bonds	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	34,228	[2]	37,371	[2]
Corporate bonds | Fair Value, Inputs, Level 2	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	34,228	[2]	37,371	[2]
Municipal bonds	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	12,796	[2]	10,819	[2]
Municipal bonds | Fair Value, Inputs, Level 2	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	12,796	[2]	10,819	[2]
Certificates of deposit	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	498	[2]	498	[2]
Certificates of deposit | Fair Value, Inputs, Level 2	'		'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'		'
Assets measured at fair value	$498	[2]	$498	[2]
[1]	Classified in cash and cash equivalents
[2]	Classified in marketable securities

Computation_of_Basic_and_Dilut

Computation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Net Income Loss Per Common Share [Line Items]	'	'
Net loss	($4,295)	($3,542)
Denominator (basic and diluted):	'	'
Weighted average common shares outstanding	91,903,036	86,639,538
Net loss attributable per share to common stockholders:	'	'
Basic	($0.05)	($0.04)
Diluted	($0.05)	($0.04)

Number_of_Outstanding_Stock_Op

Number of Outstanding Stock Options, Restricted Stock Units and Awards, Common Equivalent Shares from Stock Warrants, and Shares Purchased Under our Espp Excluded from Computation of Diluted Net Loss Per Share (Detail)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'
Stock options outstanding	5,131,673	5,603,232
Restricted stock units and restricted stock awards	217,010	49,484
Common equivalent shares from stock warrants	2,378,641	2,322,597
Shares purchased under ESPP	25,105	5,783
Antidilutive securities excluded from computation of earnings per share, amount, total	7,752,429	7,981,096

Segment_Reporting_Additional_I

Segment Reporting - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2014
	Segment
Segment Reporting Information [Line Items]	'
Number of reportable segments	2

Financial_Information_of_Segme

Financial Information of Segments (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Revenue:	'	'	'
External customers	$107,586	$82,095	'
Intersegment revenue	0	0	'
Loss from operations	-7,205	-3,444	'
Goodwill	159,342	'	159,342
Total assets	484,830	'	461,665
Eliminations	'	'	'
Revenue:	'	'	'
External customers	0	0	'
Intersegment revenue	-1,514	-1,237	'
Loss from operations	0	0	'
Goodwill	0	'	0
Total assets	-515	'	-481
Consumer | Operating Segment	'	'	'
Revenue:	'	'	'
External customers	100,995	75,094	'
Intersegment revenue	0	0	'
Loss from operations	-3,268	-229	'
Goodwill	99,805	'	99,805
Total assets	374,463	'	348,000
Enterprise | Operating Segment	'	'	'
Revenue:	'	'	'
External customers	6,591	7,001	'
Intersegment revenue	1,514	1,237	'
Loss from operations	-3,937	-3,215	'
Goodwill	59,537	'	59,537
Total assets	$110,882	'	$114,146

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Income Taxes [Line Items]	'	'
Income tax (benefit) expense	($2,948)	$47

Contingencies_Additional_Infor

Contingencies - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014
Contingencies [Line Items]	'
Value of the service guarantee	$1,000,000
Loss contingency signing bonus paid	$15,000
United States District Court	'
Contingencies [Line Items]	'
Complaint filed date	'March 20, 2014
Name of defendant	'LifeLock, Inc, Kim Jones, and Cristy Schaan
Name of plaintiff	'Mr. Michael D. Peters
Independent Contractor Misclassification | Pending Litigation	'
Contingencies [Line Items]	'
Complaint filed date	'September 2012
Name of defendant	'LifeLock, Inc and Todd Davis
Name of plaintiff	'Ms. Denise Richardson