Tableau Software 10-Q/A 28 Oct 13 2013 Q2 Quarterly report (amended) Financial data

Document_and_Entity_Informatio

Document and Entity Information Statement	6 Months Ended
	Jun. 30, 2013	Aug. 05, 2013	Aug. 05, 2013
		Common Class A [Member]	Common Class B [Member]
Document Information [Line Items]
Document Type	10-Q/A
Amendment Flag	TRUE
Amendment Description	Additional Exhibit
Document Period End Date	30-Jun-13
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Entity Registrant Name	TABLEAU SOFTWARE INC
Entity Central Index Key	1303652
Current Fiscal Year End Date	-19
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		9,430,000	49,744,007

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets
Cash and cash equivalents	$221,411	$39,302
Accounts receivable, net	33,423	30,752
Prepaid expenses and other current assets	4,302	2,789
Income taxes receivable	3,829	1,072
Deferred income taxes	2,250	2,246
Total current assets	265,215	76,161
Property and equipment, net	14,619	10,346
Deferred income taxes	110	66
Deposits and other noncurrent assets	678	419
Total assets	280,622	86,992
Current liabilities
Accounts payable	3,524	2,176
Accrued and other current liabilities	7,007	4,471
Accrued compensation and employee related benefits	12,986	13,170
Income taxes payable	317	129
Deferred revenue in current liabilities	42,431	31,984
Total current liabilities	66,265	51,930
Deferred income taxes	1,353	1,353
Deferred revenue	2,914	2,423
Other long-term liabilities	2,107	1,312
Total liabilities	72,639	57,018
Commitments and contingencies (Note 6)
Convertible preferred stock
Convertible Preferred Stock	0	0
Stockholdersb equity (deficit)
Additional paid-in capital	216,382	11,698
Accumulated other comprehensive loss	-37	-1
Accumulated deficit	-8,368	-1,758
Total stockholdersb equity	207,983	9,943
Total liabilities, convertible preferred stock and stockholdersb equity	280,622	86,992
Series B Preferred Stock [Member]
Convertible preferred stock
Convertible Preferred Stock	0	15,007
Series A Preferred Stock [Member]
Convertible preferred stock
Convertible Preferred Stock	0	5,024
Common Class B [Member]
Stockholdersb equity (deficit)
Common Stock	5	4
Common Class A [Member]
Stockholdersb equity (deficit)
Common Stock	1	0
Convertible Preferred Stock [Member]
Convertible preferred stock
Convertible Preferred Stock	$0	$20,031

Consolidated_Balance_Sheets_Ba

Consolidated Balance Sheets Balance Sheet Parenthetical (USD $)	Jun. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Preferred Stock, Par or Stated Value Per Share	$0.00	$0.00
Preferred Stock, Shares Authorized	10,000,000	0
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Series B Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share	$0.00	$0.00
Preferred Stock, Shares Authorized	0	7,000,000
Preferred Stock, Shares Issued	0	6,585,153
Preferred Stock, Shares Outstanding	0	6,585,153
Preferred Stock, Liquidation Preference, Value	$15,080	$15,080
Series A Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share	$0.00	$0.00
Preferred Stock, Shares Authorized	0	10,831,164
Preferred Stock, Shares Issued	0	10,831,164
Preferred Stock, Shares Outstanding	0	10,831,164
Preferred Stock, Liquidation Preference, Value	$5,091	$5,091
Common Class B [Member]
Par value of authorized shares	$0.00	$0.00
Shares authorized for issuance	75,000,000	75,000,000
Shares issued and outstanding	49,696,146	34,317,137
Common Stock, Shares, Outstanding	49,696,146	34,317,137
Common Class A [Member]
Par value of authorized shares	$0.00	$0.00
Shares authorized for issuance	750,000,000	75,000,000
Shares issued and outstanding	9,430,000	0
Common Stock, Shares, Outstanding	9,430,000	0

Consolidated_Statement_of_Oper

Consolidated Statement of Operations (USD $)	3 Months Ended				6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Revenues
License	$33,518		$20,239		$59,944		$37,695
Maintenance and services	16,366		8,877		29,958		16,106
Total revenues	49,884		29,116		89,902		53,801
Cost of revenues
License	110		93		286		149
Maintenance and services	4,236		2,406		7,610		4,021
Total cost of revenues	4,346	[1]	2,499	[1]	7,896	[1]	4,170	[1]
Gross profit	45,538		26,617		82,006		49,631
Operating expenses (1)
Sales and marketing	27,565	[1]	12,983	[1]	51,237	[1]	23,560	[1]
Research and development	14,135	[1]	7,493	[1]	27,076	[1]	14,218	[1]
General and administrative	6,118	[1]	3,340	[1]	11,719	[1]	6,255	[1]
Total operating expenses	47,818		23,816		90,032		44,033
Operating income (loss)	-2,280		2,801		-8,026		5,598
Other income (expense), net	-119		-16		-173		-27
Income (loss) before income tax expense (benefit)	-2,399		2,785		-8,199		5,571
Income tax expense (benefit)	176		1,726		-1,589		3,455
Net income (loss)	-2,575		1,059		-6,610		2,116
Net income (loss) per share attributable to common stockholders
Basic (in usd per share)	($0.05)		$0.01		($0.16)		$0.03
Diluted (in usd per share)	($0.05)		$0.01		($0.16)		$0.03
Weighted average shares used to compute net income (loss) per share attributable to common stockholders
Basic (in shares)	46,893		33,834		40,867		33,592
Diluted (in shares)	46,893		39,789		40,867		39,450
Share-based Compensation [Abstract]
Total stock-based compensation expense	3,304		1,105		5,803		2,056
Cost of Revenues [Member]
Share-based Compensation [Abstract]
Total stock-based compensation expense	105		23		178		38
Sales and Marketing [Member]
Share-based Compensation [Abstract]
Total stock-based compensation expense	1,245		318		2,064		583
Research and Development [Member]
Share-based Compensation [Abstract]
Total stock-based compensation expense	1,277		488		2,312		914
General and Administrative [Member]
Share-based Compensation [Abstract]
Total stock-based compensation expense	$677		$276		$1,249		$521
[1]	Includes stock-based compensation as follows:B Three Months Ended June 30,B Six Months Ended June 30,B 2013B 2012B 2013B 2012B (in thousands)Cost of revenues$105B $23B $178B $38Sales and marketing1,245B 318B 2,064B 583Research and development1,277B 488B 2,312B 914General and administrative677B 276B 1,249B 521Total stock-based compensation expense $3,304B $1,105B $5,803B $2,056

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Comprehensive Income Statement (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net income (loss)	($2,575)	$1,059	($6,610)	$2,116
Other comprehensive loss:
Foreign currency translation	-26	0	-36	0
Total comprehensive income (loss)	($2,601)	$1,059	($6,646)	$2,116

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Operating activities
Net income (loss)	($6,610)	$2,116
Adjustment to reconcile net income (loss) to net cash provided by operating activities
Depreciation expense	2,738	1,622
Allowance for doubtful accounts	29	50
Stock-based compensation expense	5,803	2,056
Excess tax benefit from stock-based compensation	-308	1
Deferred taxes	256	0
Changes in operating assets and liabilities
Accounts receivable	-2,835	-4,956
Prepaid expenses, deposits and other assets	-1,799	-782
Income taxes receivable	-2,761	0
Deferred revenue	10,991	5,427
Accounts payable and accrued liabilities	3,949	624
Income taxes payable	199	1,815
Net cash provided by operating activities	9,652	7,973
Investing activities
Purchase of property and equipment	-6,344	-3,236
Net cash used in investing activities	-6,344	-3,236
Financing activities
Proceeds from public offering, net of underwriters' discount and deferred offering costs	176,974	0
Proceeds from issuance of common stock upon exercise of stock options	1,572	204
Excess tax benefit from stock-based compensation	308	-1
Net cash provided by (used in) financing activities	178,854	203
Effect of exchange rate changes on cash and cash equivalents	-53	0
Net increase in cash and cash equivalents	182,109	4,940
Cash and cash equivalents
Beginning of year	39,302	30,223
End of year	$221,411	$35,163

Description_of_Business

Description of Business	6 Months Ended
	Jun. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business
	Tableau Software, Inc. (the “Company” "we", "us" or "our"), a Delaware corporation, and its wholly-owned subsidiaries are headquartered in Seattle, Washington. Our software products put the power of data into the hands of everyday people, allowing a broad population of business users to engage with their data, ask questions, solve problems and create value. Based on innovative core technologies originally developed at Stanford University, our products dramatically reduce the complexity, inflexibility and expense associated with traditional business intelligence applications. We currently make four key products, Tableau Desktop, a self-service, powerful analytics product for anyone with data, Tableau Server, a business intelligence platform for organizations, Tableau Online, a cloud-based hosted version of Tableau Server and Tableau Public, a free cloud-based platform for analyzing and sharing public data.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2013
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies
	Basis of Presentation
	The condensed consolidated balance sheet data as of December 31, 2012 was derived from audited consolidated financial statements. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP") for unaudited condensed consolidated financial information. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. These unaudited condensed consolidated financial statements and notes should be read in conjunction with the Company's audited consolidated financial statements and accompanying notes for the year ended December 31, 2012 included in the Company’s prospectus filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933 with the SEC on May 20, 2013. The accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring adjustments which, in the opinion of management, are necessary for a fair presentation of the Company's financial position and results of its operations, as of and for the periods presented. Operating results for the three and six months ended June 30, 2013 are not necessarily indicative of the results that may be expected for the year ending December 31, 2013, or for any other period.
	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States 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 revenues and expenses during the reporting period. These estimates include depreciable lives for property and equipment, stock-based compensation, income taxes, accrued liabilities and collectability of accounts receivable. Actual results could differ from those estimates.
	Initial Public Offering
	On May 22, 2013, we completed our initial public offering ("IPO") whereby 9,430,000 shares of Class A common stock were sold to the public at a price of $31.00 per share. We sold 6,230,000 shares of Class A common stock and the selling stockholders sold 3,200,000 shares of Class A common stock. We received aggregate proceeds of $177.0 million from the IPO, net of underwriters’ discounts and commissions and offering expenses. Upon the closing of the IPO, all shares of our outstanding convertible preferred stock automatically converted into shares of Class B common stock.
	Segments
	We follow the authoritative literature that established annual and interim reporting standards for enterprise’s operating segments and related disclosures about its products and services, geographic regions and major customers.
	We operate our business as one operating segment. Our chief operating decision makers (“CODM”) are our Chief Executive Officer and Chief Financial Officer, who review financial information presented on a consolidated basis for purposes of making operating decisions, assessing financial performance and allocating resources.
	Revenue Recognition
	We generate revenues primarily in the form of software license fees and related maintenance and services fees. License fees include perpetual, term and subscription license fees. Maintenance and services fees primarily consist of fees for maintenance services (including support and unspecified upgrades and enhancements when and if they are available), training and professional services that are not essential to functionality of the software.
	We recognize revenues when all of the following conditions are met:
	•	there is persuasive evidence of an arrangement;
	•	the software or services have been delivered to the customer;
	•	the amount of fees to be paid by the customer is fixed or determinable; and
	•	the collection of the related fees is probable.
	We use click-through license agreements, signed agreements and purchase orders as evidence of an arrangement. We deliver all of our software electronically. Electronic delivery occurs when we provide the customer with access to the software via a secure portal. We assess whether the fee is fixed or determinable at the outset of the arrangement. Our typical terms of payment are due 30 days from delivery. We assess collectability based on a number of factors such as collection history and creditworthiness of the customer. If we determine that collectability is not probable, revenue is deferred until collectability becomes probable, generally upon receipt of cash.
	Substantially all of our software licenses are sold in multiple-element arrangements that include maintenance and may include professional services and training.
	Vendor specific objective evidence (“VSOE”) of the fair value is not available for software licenses as they are never sold without maintenance. VSOE of the fair value generally exists for all undelivered elements and any services that are not essential to the functionality of the delivered software. We account for delivered software licenses under the residual method.
	Maintenance agreements consist of fees for providing software updates on a when and if available basis and technical support for software products (“post-contract support” or “PCS”) for an initial term, generally one year. We have established VSOE of the fair value for maintenance on perpetual licenses based on stated substantive renewal rates or the price when sold on a standalone basis. Stated renewal rates are considered to be substantive if they are at least 15% of the actual price charged for the software license. VSOE of the fair value for standalone sales is considered to have been established when a substantial majority of individual sales transactions within the previous 12 month period fall within a reasonably narrow range, which we have defined to be plus or minus 15% of the median sales price of actual standalone sales transactions.
	License arrangements may include professional services and training. In determining whether professional services and training revenues should be accounted for separately from license revenues, we evaluate whether such services are considered essential to the functionality of the software using factors such as the nature of the software products; whether they are ready for use by the customer upon receipt; the nature of the services, which typically do not involve significant customization to or development of the underlying software code; the availability of services from other vendors; whether the timing of payments for license revenues is coincident with performance of services; and whether milestones or acceptance criteria exist that affect the realizability of the software license fee. Revenues related to training are recognized as training services are delivered. Payments received in advance of services performed are deferred and recognized when the related services are performed.
	To date, professional services have not been considered essential to the functionality of the software. The VSOE of fair value of our professional services and training is based on the price for these same services when they are sold separately. Revenues related to professional services are billed on a time and materials basis and, accordingly, are recognized as the services are performed. When software is licensed for a specified term or on a subscription basis, fees for support and maintenance are generally bundled with the license fee over the entire term of the contract. In these cases, we do not have VSOE of the fair value for support and maintenance. Revenues related to term license fees are recognized ratably over the contract term beginning on the date the customer has access to the software license key and continuing through the end of the contract term.
	We do not offer refunds and therefore have not recorded any sales return allowance for any of the periods presented. Upon a periodic review of outstanding accounts receivable, amounts that are deemed to be uncollectible are written off against the allowance for doubtful accounts. We account for taxes collected from customers and remitted to governmental authorities on a net basis and exclude them from revenues.
	Concentrations of Credit Risk
	Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. We extend credit to customers based upon an evaluation of the customer’s financial condition and generally collateral is not required. As of June 30, 2013, no individual customer accounted for 10% or more of total accounts receivable. As of December 31, 2012 one customer accounted for 10% or more of total accounts receivable. For the three and six months ended June 30, 2013 and the six months ended June 30, 2012, no individual customer represented 10% or more of our total revenues. For the three months ended June 30, 2012, one customer accounted for more than 10% of our total revenues.
	Stock-Based Compensation
	We account for stock-based compensation by calculating the fair value of each employee options at the date of grant by applying the Black-Scholes option pricing model. This model utilizes the estimated value of our underlying Class A common stock and Class B common stock (together, "common stock") at the measurement date, the expected or contractual term of the option, the expected volatility of our common stock,risk-free interest rates and expected dividend yield of our common stock. Measurement of stock-based compensation is subject to periodic adjustment as the underlying equity instruments vest. We recognize compensation expense for only the portion of options expected to vest. Therefore, management applied an estimated forfeiture rate that was derived from historical employee termination behavior. If the actual number of forfeitures differs from the estimates, adjustments to stock-based compensation expense may be required in future periods. Stock-based compensation expense related to non-employees was immaterial for the three and six months ended June 30, 2013 and 2012.
	Fair Value Measurements
	We categorize assets and liabilities recorded at fair value on our consolidated balance sheets based upon the level of judgment associated with inputs used to measure their fair value. The levels of the fair value hierarchy are as follows:
	•	Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.
	•	Level 2—Inputs are quoted prices for similar assets and liabilities in active markets or quoted prices
	for identical or similar instruments in markets that are not active and model-derived valuations in
	which all significant inputs and significant value drivers are observable in active markets.
	•	Level 3—Inputs are unobservable inputs based on our own assumptions and valuation
	techniques used to measure assets and liabilities at fair value. The inputs require significant
	management judgment or estimation.
	Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of fair value assets and liabilities and their placement within the fair value hierarchy levels.
	Recent Accounting Pronouncements
	We have reviewed recent accounting pronouncements and concluded that they are either not applicable to our business or that no material effect is expected on the consolidated financial statements as a result of the future adoption.
	As an “emerging growth company”, the Jumpstart Our Business Startups Act allows us to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies.

Stockholders_Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2013
Equity [Abstract]
Stockholders' Equity	Stockholders' Equity
	Common Stock
	Our certificate of incorporation, as amended and restated, authorizes us to issue 75,000,000 shares of Class B common stock, $0.0001 par value per share and 750,000,000 shares of Class A common stock, $0.0001 par value per share. Each holder of Class A common stock is entitled to one vote per share and each holder of Class B stock is entitled to ten votes per share. At its discretion, the board of directors may declare dividends on shares of common stock, subject to the rights of our preferred shareholders, if any. Upon liquidation or dissolution, holders of common stock will receive distributions only after preferred stock preferences have been satisfied.
	In May 2013, upon the closing of our IPO, 6,585,153 shares of Class B convertible preferred stock and 10,831,164 shares of Class A convertible preferred stock converted into 17,416,317 shares of our Class B common stock. We issued 6,230,000 shares of Class A common stock in the IPO. In addition, 3,200,000 shares of Class B common stock (including 2,000,000 shares of Class B common stock issued upon the conversion of our preferred stock) held by our existing stockholders were converted into Class A common stock and sold in the IPO.

StockBased_Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2013
Share-based Compensation [Abstract]
Stock-Based Compensation	Stock-Based Compensation
	A summary of the option activity under our stock option plan during the six months ended June 30, 2013 is presented below:
				Options Outstanding
		Shares Available for Grant		Shares		Weighted Average Exercise Price Per Share		Aggregate Intrinsic Value
								(in thousands)
	Balances at December 31, 2012	6,907,924		15,398,221		$	4.92
	Options granted	(1,255,350	)	1,255,350		21.02
	Options exercised	—		(1,109,574	)	1.42
	Options canceled	4,545		(4,545	)	8.55
	Options forfeited	180,347		(180,347	)	6.52
	Balances at June 30, 2013	5,837,466		15,359,105		$	6.45	$	752,181
	Vested and expected to vest at June 30, 2013			14,330,694		$	6.17	$	705,735
	Exercisable at June 30, 2013			7,315,665		$	2.58	$	386,594
	As of June 30, 2013, total unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested stock options was approximately $34.7 million and the weighted-average remaining vesting period was 3.2 years.
	Common Stock Warrant
	A fully-vested warrant to purchase 54,167 shares of our Class B common stock at an exercise price of $0.60 per share was exercised on May 16, 2013.

Accrued_and_Other_Current_Liab

Accrued and Other Current Liabilities	6 Months Ended
	Jun. 30, 2013
Payables and Accruals [Abstract]
Accrued and Other Current Liabilities	Accrued and Other Current Liabilities
	Accrued and other current liabilities consisted of:
		June 30, 2013		December 31, 2012
		(in thousands)
	Accrued liabilities	$	5,811	$	4,471
	Other current liabilities	1,196		—
	Total accrued and other current liabilities	$	7,007	$	4,471

Commitments_and_Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies
	As of June 30, 2013, our principal obligations consisted of obligations outstanding under operating leases. We lease our facilities under operating leases that expire at various dates through 2020. The following table represents our operating lease obligations as of June 30, 2013 (in thousands):
	Year Ending
	Remainder of 2013	$	2,188
	2014	5,334
	2015	4,050
	2016	2,799
	2017	2,570
	Thereafter	2,651
	Total minimum lease payments	$	19,592
	We are subject to certain routine legal proceedings, as well as demands and claims that arise in the normal course of our business. We make a provision for a liability relating to legal matters when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. These provisions are reviewed and adjusted to reflect the impacts of negotiations, estimated settlements, legal rulings, advice of legal counsel and other information and events pertaining to a particular matter. In our opinion, resolution of any pending claims (either individually or in the aggregate) is not expected to have a material adverse impact on our consolidated results of operations, cash flows or financial position.
	We are not aware of any pending legal proceedings that, individually or in the aggregate, would have a material adverse effect on our business, operating results, or financial conditions. We may in the future be party to litigation arising in the ordinary course of business, including claims that we allegedly infringe upon third party intellectual property rights. Such claims, even if not meritorious, could result in the expenditure of significant financial and management resources.

Segments_and_Information_about

Segments and Information about Revenues by Geographic Region	6 Months Ended
	Jun. 30, 2013
Segment Reporting [Abstract]
Segments and Information about Revenues by Geographic Area	Segments and Information about Revenues by Geographic Area
	The following table presents our revenues by geographic region of end users who purchased products or services for the periods presented below:
		Three Months Ended June 30,				Six Months Ended June 30,
		2013		2012		2013		2012
		(in thousands)
	United States and Canada	$	40,446	$	24,765	$	73,018	$	45,252
	International	9,438		4,351		16,884		8,549
	Total revenues	$	49,884	$	29,116	$	89,902	$	53,801
	Substantially all of our long-lived assets are located in the United States as of June 30, 2013 and December 31, 2012.

Net_Income_Loss_Per_Share

Net Income (Loss) Per Share	6 Months Ended
	Jun. 30, 2013
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	Net Income (Loss) Per Share
	Immediately prior to the closing of the our IPO, all outstanding shares of Series A preferred stock and Series B preferred stock were converted to Class B common stock. We issued 6,230,000 shares of Class A common stock in the IPO. In addition, 3,200,000 shares of Class B common stock (including 2,000,000 shares of Class B common stock issued upon the conversion of our preferred stock) held by our existing stockholders were converted into Class A common stock and sold in the IPO. As a result, Class A and Class B common stock are the only outstanding classes of capital stock of the Company. The rights of the holders of Class A and Class B common stock are identical, except with respect to voting and conversion. Each share of Class A common stock is entitled to one vote per share and each share of Class B common stock is entitled to ten votes per share. Shares of Class B common stock may be converted into Class A common stock at any time at the option of the stockholder, and are automatically converted upon sale or transfer to Class A common stock, subject to certain limited exceptions.
	Net income per share attributable to common stockholders is presented in conformity with the two-class method required for participating securities for periods in which we have net income. Holders of Series A preferred stock and Series B preferred stock were entitled to receive non-cumulative dividends at the per annum rate of $0.0282 and $0.1374 per share, payable prior and in preference to any dividends on any other shares of our stock. Holders of Series A preferred stock and Series B preferred stock did not have a contractual obligation to share in our losses. We consider our convertible preferred stock to be participating securities and, in accordance with the two-class method, earnings allocated to preferred stock and the related number of outstanding shares of preferred stock have been excluded from the computation of basic and diluted net income per common share. The computation of diluted net income per share does not assume conversion or exercise of potentially dilutive securities that would have an anti-dilutive effect on earnings. We utilize the if-converted method to compute diluted net income (loss) per common share when the if-converted method is more dilutive than the two-class method.
	Under the two-class method, net income attributable to common stockholders is determined by allocating undistributed earnings, calculated as net income less current period Series A and Series B convertible preferred stock non-cumulative dividends, between common stock and Series A and Series B convertible preferred stock. In computing diluted net income attributable to common stockholders, undistributed earnings are re-allocated to reflect the potential impact of dilutive securities. Basic net income per share attributable to common stockholders is computed by dividing the net income attributable to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income per share attributable to common stockholders is computed by dividing the net income attributable to common stockholders by the weighted-average number of common shares outstanding, including potential dilutive common shares assuming the dilutive effect of outstanding stock options using the treasury stock method.
	The following table presents the computation of basic and diluted net income (loss) per share attributable to common stockholders:
		Three Months Ended June 30,						Six Months Ended June 30,
		2013			2012			2013			2012
		(in thousands, except per share amounts)
	Basic net income (loss) attributable to common stockholders:
	Net income (loss)	$	(2,575	)	$	1,059		$	(6,610	)	$	2,116
	Less: Undistributed earnings allocated to participating securities	—			303			—			605
	Less: Allocation of net income to participating preferred shares - basic	—			257			—			516
	Net income (loss) attributable to common stockholders - basic	$	(2,575	)	$	499		$	(6,610	)	$	995
	Weighted average shares outstanding used to compute basic net income (loss) per share	46,893			33,834			40,867			33,592
	Net income (loss) per share attributable to common stockholders - basic	$	(0.05	)	$	0.01		$	(0.16	)	$	0.03
	Diluted net income (loss) attributable to common stockholders:
	Net income (loss)	$	(2,575	)	$	1,059		$	(6,610	)	$	2,116
	Less: Undistributed earnings allocated to participating securities	—			303			—			605
	Less: Allocation of net income to participating preferred shares - diluted	—			230			—			463
	Net income (loss) attributable to common shareholders - diluted	$	(2,575	)	$	526		$	(6,610	)	$	1,048
	Weighted average shares used to compute basic net income (loss) per share	46,893			33,834			40,867			33,592
	Effect of potentially dilutive shares:
	Stock options	—			5,924			—			5,827
	Warrants	—			31			—			31
	Weighted average shares used to compute diluted net income (loss) per share	46,893			39,789			40,867			39,450
	Net income (loss) per share attributable to common stockholders - diluted	$	(0.05	)	$	0.01		$	(0.16	)	$	0.03
	For the three and six months ended June 30, 2013 outstanding stock options were antidilutive because of our net loss, as such, their effect has not been included in the calculation of basic or diluted net loss per share attributable to common stockholders.
	The following shares subject to outstanding options and convertible preferred shares were excluded from the computation of diluted net income per share attributable to common stockholders for the periods presented as their effect would have been antidilutive:
			Three Months Ended June 30,						Six Months Ended June 30,
			2013			2012			2013			2012
			(in thousands)
	Shares subject to outstanding common stock options		$	15,359		$	—		$	15,359		$	—
	Convertible preferred shares		—			17,416			—			17,416
	Total potentially dilutive shares		$	15,359		$	17,416		$	15,359		$	17,416

Fair_Value_Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2013
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements
	The following table presents the fair value of our financial assets using the fair value hierarchy:
		June 30, 2013
	Description	Level 1		Level 2		Level 3		Total
		(in thousands)
	Money market funds	$	208,641	$	—	$	—	$	208,641
		December 31, 2012
	Description	Level 1		Level 2		Level 3		Total
		(in thousands)
	Money market funds	$	12,015	$	—	$	—	$	12,015
	We have no financial assets or liabilities measured using Level 2 or Level 3 inputs.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2013
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation
	The condensed consolidated balance sheet data as of December 31, 2012 was derived from audited consolidated financial statements. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP") for unaudited condensed consolidated financial information. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. These unaudited condensed consolidated financial statements and notes should be read in conjunction with the Company's audited consolidated financial statements and accompanying notes for the year ended December 31, 2012 included in the Company’s prospectus filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933 with the SEC on May 20, 2013. The accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring adjustments which, in the opinion of management, are necessary for a fair presentation of the Company's financial position and results of its operations, as of and for the periods presented.
Use of Estimates	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States 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 revenues and expenses during the reporting period. These estimates include depreciable lives for property and equipment, stock-based compensation, income taxes, accrued liabilities and collectability of accounts receivable. Actual results could differ from those estimates.
Segments	Segments
	We follow the authoritative literature that established annual and interim reporting standards for enterprise’s operating segments and related disclosures about its products and services, geographic regions and major customers.
	We operate our business as one operating segment. Our chief operating decision makers (“CODM”) are our Chief Executive Officer and Chief Financial Officer, who review financial information presented on a consolidated basis for purposes of making operating decisions, assessing financial performance and allocating resources.
Revenue Recognition	Revenue Recognition
	We generate revenues primarily in the form of software license fees and related maintenance and services fees. License fees include perpetual, term and subscription license fees. Maintenance and services fees primarily consist of fees for maintenance services (including support and unspecified upgrades and enhancements when and if they are available), training and professional services that are not essential to functionality of the software.
	We recognize revenues when all of the following conditions are met:
	•	there is persuasive evidence of an arrangement;
	•	the software or services have been delivered to the customer;
	•	the amount of fees to be paid by the customer is fixed or determinable; and
	•	the collection of the related fees is probable.
	We use click-through license agreements, signed agreements and purchase orders as evidence of an arrangement. We deliver all of our software electronically. Electronic delivery occurs when we provide the customer with access to the software via a secure portal. We assess whether the fee is fixed or determinable at the outset of the arrangement. Our typical terms of payment are due 30 days from delivery. We assess collectability based on a number of factors such as collection history and creditworthiness of the customer. If we determine that collectability is not probable, revenue is deferred until collectability becomes probable, generally upon receipt of cash.
	Substantially all of our software licenses are sold in multiple-element arrangements that include maintenance and may include professional services and training.
	Vendor specific objective evidence (“VSOE”) of the fair value is not available for software licenses as they are never sold without maintenance. VSOE of the fair value generally exists for all undelivered elements and any services that are not essential to the functionality of the delivered software. We account for delivered software licenses under the residual method.
	Maintenance agreements consist of fees for providing software updates on a when and if available basis and technical support for software products (“post-contract support” or “PCS”) for an initial term, generally one year. We have established VSOE of the fair value for maintenance on perpetual licenses based on stated substantive renewal rates or the price when sold on a standalone basis. Stated renewal rates are considered to be substantive if they are at least 15% of the actual price charged for the software license. VSOE of the fair value for standalone sales is considered to have been established when a substantial majority of individual sales transactions within the previous 12 month period fall within a reasonably narrow range, which we have defined to be plus or minus 15% of the median sales price of actual standalone sales transactions.
	License arrangements may include professional services and training. In determining whether professional services and training revenues should be accounted for separately from license revenues, we evaluate whether such services are considered essential to the functionality of the software using factors such as the nature of the software products; whether they are ready for use by the customer upon receipt; the nature of the services, which typically do not involve significant customization to or development of the underlying software code; the availability of services from other vendors; whether the timing of payments for license revenues is coincident with performance of services; and whether milestones or acceptance criteria exist that affect the realizability of the software license fee. Revenues related to training are recognized as training services are delivered. Payments received in advance of services performed are deferred and recognized when the related services are performed.
	To date, professional services have not been considered essential to the functionality of the software. The VSOE of fair value of our professional services and training is based on the price for these same services when they are sold separately. Revenues related to professional services are billed on a time and materials basis and, accordingly, are recognized as the services are performed. When software is licensed for a specified term or on a subscription basis, fees for support and maintenance are generally bundled with the license fee over the entire term of the contract. In these cases, we do not have VSOE of the fair value for support and maintenance. Revenues related to term license fees are recognized ratably over the contract term beginning on the date the customer has access to the software license key and continuing through the end of the contract term.
	We do not offer refunds and therefore have not recorded any sales return allowance for any of the periods presented. Upon a periodic review of outstanding accounts receivable, amounts that are deemed to be uncollectible are written off against the allowance for doubtful accounts. We account for taxes collected from customers and remitted to governmental authorities on a net basis and exclude them from revenues.
Concentrations of Credit Risk	Concentrations of Credit Risk
	Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. We extend credit to customers based upon an evaluation of the customer’s financial condition and generally collateral is not required.
Stock-Based Compensation	Stock-Based Compensation
	We account for stock-based compensation by calculating the fair value of each employee options at the date of grant by applying the Black-Scholes option pricing model. This model utilizes the estimated value of our underlying Class A common stock and Class B common stock (together, "common stock") at the measurement date, the expected or contractual term of the option, the expected volatility of our common stock,risk-free interest rates and expected dividend yield of our common stock. Measurement of stock-based compensation is subject to periodic adjustment as the underlying equity instruments vest. We recognize compensation expense for only the portion of options expected to vest. Therefore, management applied an estimated forfeiture rate that was derived from historical employee termination behavior. If the actual number of forfeitures differs from the estimates, adjustments to stock-based compensation expense may be required in future periods.
Fair Value Measurements	Fair Value Measurements
	We categorize assets and liabilities recorded at fair value on our consolidated balance sheets based upon the level of judgment associated with inputs used to measure their fair value. The levels of the fair value hierarchy are as follows:
	•	Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.
	•	Level 2—Inputs are quoted prices for similar assets and liabilities in active markets or quoted prices
	for identical or similar instruments in markets that are not active and model-derived valuations in
	which all significant inputs and significant value drivers are observable in active markets.
	•	Level 3—Inputs are unobservable inputs based on our own assumptions and valuation
	techniques used to measure assets and liabilities at fair value. The inputs require significant
	management judgment or estimation.
	Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of fair value assets and liabilities and their placement within the fair value hierarchy levels.
Recent Accounting Pronouncements	Recent Accounting Pronouncements
	We have reviewed recent accounting pronouncements and concluded that they are either not applicable to our business or that no material effect is expected on the consolidated financial statements as a result of the future adoption.
	As an “emerging growth company”, the Jumpstart Our Business Startups Act allows us to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies.

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2013
Share-based Compensation [Abstract]
Summary of Option Activity	A summary of the option activity under our stock option plan during the six months ended June 30, 2013 is presented below:
				Options Outstanding
		Shares Available for Grant		Shares		Weighted Average Exercise Price Per Share		Aggregate Intrinsic Value
								(in thousands)
	Balances at December 31, 2012	6,907,924		15,398,221		$	4.92
	Options granted	(1,255,350	)	1,255,350		21.02
	Options exercised	—		(1,109,574	)	1.42
	Options canceled	4,545		(4,545	)	8.55
	Options forfeited	180,347		(180,347	)	6.52
	Balances at June 30, 2013	5,837,466		15,359,105		$	6.45	$	752,181
	Vested and expected to vest at June 30, 2013			14,330,694		$	6.17	$	705,735
	Exercisable at June 30, 2013			7,315,665		$	2.58	$	386,594

Accrued_and_Other_Current_Liab1

Accrued and Other Current Liabilities (Tables)	6 Months Ended
	Jun. 30, 2013
Payables and Accruals [Abstract]
Accrued and Other Current Liabilities	Accrued and other current liabilities consisted of:
		June 30, 2013		December 31, 2012
		(in thousands)
	Accrued liabilities	$	5,811	$	4,471
	Other current liabilities	1,196		—
	Total accrued and other current liabilities	$	7,007	$	4,471

Commitments_and_Contigencies_T

Commitments and Contigencies (Tables)	6 Months Ended
	Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
Future Minimum Lease Payments	The following table represents our operating lease obligations as of June 30, 2013 (in thousands):
	Year Ending
	Remainder of 2013	$	2,188
	2014	5,334
	2015	4,050
	2016	2,799
	2017	2,570
	Thereafter	2,651
	Total minimum lease payments	$	19,592

Segments_and_Information_about1

Segments and Information about Revenues by Geographic Region (Tables)	6 Months Ended
	Jun. 30, 2013
Segment Reporting [Abstract]
Reconciliation of Revenue from Segments to Consolidated	The following table presents our revenues by geographic region of end users who purchased products or services for the periods presented below:
		Three Months Ended June 30,				Six Months Ended June 30,
		2013		2012		2013		2012
		(in thousands)
	United States and Canada	$	40,446	$	24,765	$	73,018	$	45,252
	International	9,438		4,351		16,884		8,549
	Total revenues	$	49,884	$	29,116	$	89,902	$	53,801

Net_Income_Loss_Per_Share_Tabl

Net Income (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 2013
Net Income Per Share [Abstract]
Schedule of Computation of Earnings Per Share, Basic and Diluted	The following table presents the computation of basic and diluted net income (loss) per share attributable to common stockholders:
		Three Months Ended June 30,						Six Months Ended June 30,
		2013			2012			2013			2012
		(in thousands, except per share amounts)
	Basic net income (loss) attributable to common stockholders:
	Net income (loss)	$	(2,575	)	$	1,059		$	(6,610	)	$	2,116
	Less: Undistributed earnings allocated to participating securities	—			303			—			605
	Less: Allocation of net income to participating preferred shares - basic	—			257			—			516
	Net income (loss) attributable to common stockholders - basic	$	(2,575	)	$	499		$	(6,610	)	$	995
	Weighted average shares outstanding used to compute basic net income (loss) per share	46,893			33,834			40,867			33,592
	Net income (loss) per share attributable to common stockholders - basic	$	(0.05	)	$	0.01		$	(0.16	)	$	0.03
	Diluted net income (loss) attributable to common stockholders:
	Net income (loss)	$	(2,575	)	$	1,059		$	(6,610	)	$	2,116
	Less: Undistributed earnings allocated to participating securities	—			303			—			605
	Less: Allocation of net income to participating preferred shares - diluted	—			230			—			463
	Net income (loss) attributable to common shareholders - diluted	$	(2,575	)	$	526		$	(6,610	)	$	1,048
	Weighted average shares used to compute basic net income (loss) per share	46,893			33,834			40,867			33,592
	Effect of potentially dilutive shares:
	Stock options	—			5,924			—			5,827
	Warrants	—			31			—			31
	Weighted average shares used to compute diluted net income (loss) per share	46,893			39,789			40,867			39,450
	Net income (loss) per share attributable to common stockholders - diluted	$	(0.05	)	$	0.01		$	(0.16	)	$	0.03
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following shares subject to outstanding options and convertible preferred shares were excluded from the computation of diluted net income per share attributable to common stockholders for the periods presented as their effect would have been antidilutive:
			Three Months Ended June 30,						Six Months Ended June 30,
			2013			2012			2013			2012
			(in thousands)
	Shares subject to outstanding common stock options		$	15,359		$	—		$	15,359		$	—
	Convertible preferred shares		—			17,416			—			17,416
	Total potentially dilutive shares		$	15,359		$	17,416		$	15,359		$	17,416

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2013
Fair Value Disclosures [Abstract]
Fair Value of Financial Assets	The following table presents the fair value of our financial assets using the fair value hierarchy:
		June 30, 2013
	Description	Level 1		Level 2		Level 3		Total
		(in thousands)
	Money market funds	$	208,641	$	—	$	—	$	208,641
		December 31, 2012
	Description	Level 1		Level 2		Level 3		Total
		(in thousands)
	Money market funds	$	12,015	$	—	$	—	$	12,015

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	0 Months Ended	6 Months Ended		0 Months Ended	6 Months Ended	12 Months Ended	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	22-May-13	Jun. 30, 2013	Jun. 30, 2012	22-May-13	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
		segment		Common Class A [Member]	Accounts Receivable [Member]	Accounts Receivable [Member]	Revenue [Member]	Revenue [Member]	Revenue [Member]	Revenue [Member]
					Customer Concentration Risk [Member]	Customer Concentration Risk [Member]	Customer Concentration Risk [Member]	Customer Concentration Risk [Member]	Customer Concentration Risk [Member]	Customer Concentration Risk [Member]
					customer	customer	customer	customer	customer	customer
Class of Stock [Line Items]
Total shares sold in IPO				9,430,000
Price per share of stock sold in IPO (in $ per share)				$31
Shares issued under IPO				6,230,000
Number of shares sold by existing shareholders				3,200,000
Proceeds from Issuance Initial Public Offering	$177,000	$176,974	$0
Number of Operating Segments		1
VSOE Sales % variance compared to median sales price of standalone transactions		15.00%
Number of Customers with More than 10% of Period Revenue					0	0	0	1	0	0

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	0 Months Ended	6 Months Ended
	22-May-13	Jun. 30, 2013	Dec. 31, 2012
		votes
Common Class B [Member]
Class of Stock [Line Items]
Shares authorized for issuance		75,000,000	75,000,000
Par value of authorized shares		$0.00	$0.00
Votes per share entitled to share holder		10
Shares converted into during IPO	17,416,317
Shares issued and outstanding		49,696,146	34,317,137
Shares Sold in Public Offering, Existing Shares, Number of Shares Sold	2,000,000
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Shares converted under IPO	6,585,153
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Shares converted under IPO	10,831,164
Common Class A [Member]
Class of Stock [Line Items]
Shares authorized for issuance		750,000,000	75,000,000
Par value of authorized shares		$0.00	$0.00
Votes per share entitled to share holder		1
Shares issued under IPO	9,430,000
Shares issued and outstanding		9,430,000	0
Stock Issued During Period, Shares, New Issues	6,230,000
Shares Sold in Public Offering, Existing Shares, Number of Shares Sold	3,200,000

StockBased_Compensation_Detail

Stock-Based Compensation (Details 2) (Details) (USD $)	6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options Outstanding, Shares, Beginning of Period	15,398,221
Options Outstanding, Shares, Options granted	-1,255,350
Options Outstanding, Shares, Options exercised	-1,109,574
Options Outstanding, Shares, Options canceled	4,545
Options Outstanding, Shares, Options forfeited	180,347
Options Outstanding, Shares, End of Period	15,359,105
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options Outstanding, Weighted Average Exercise Price, Beginning of Period	$4.92
Options Outstanding, Weighted Average Exercise Price, Options granted	$21.02
Options Outstanding, Weighted Average Exercise Price, Options exercised	$1.42
Options Outstanding, Weighted Average Exercise Price, Options canceled	$8.55
Options Outstanding, Weighted Average Exercise Price, Options forfeited	$6.52
Options Outstanding, Weighted Average Exercise Price, End of Period	$6.45
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options Outstanding, Aggregate Intrinsic Value, End of Period	$752,181
Options Outstanding, Shares, Exercisable	7,315,665
Options Outstanding, Weighted Average Exercise Price Per Share, Exercisable	$2.58
Options Outstanding, Aggregate Intrinsic Value, Exercisable	386,594
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]
Shares Available for Grant	5,837,466	6,907,924
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Options Outstanding, Vested and Expected to Vest, Shares	14,330,694
Options Outstanding, Vested and Expected to Vest, Weighted Average Exercise Price Per Share	$6.17
Options Outstanding, Vested and Expected to Vest, Aggregate Intrinsic Value	$705,735

StockBased_Compensation_Narrat

Stock-Based Compensation (Narrative) (Details) (USD $)	Jun. 30, 2013	16-May-13	Jun. 30, 2013
In Millions, except Share data, unless otherwise specified			Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options	$34.70
Share-based Compensation Arrangement by Share-based Payment Award, Options, Unvested, Weighted Average Vesting Period			3 years 2 months 12 days
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		54,167
Class of Warrant or Right, Exercise Price of Warrants or Rights		0.6

Accrued_and_Other_Current_Liab2

Accrued and Other Current Liabilities (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Payables and Accruals [Abstract]
Accrued liabilities	$5,811	$4,471
Other current liabilities	1,196	0
Total accrued and other current liabilities	$7,007	$4,471

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (USD $)	Jun. 30, 2013
In Thousands, unless otherwise specified
Commitments and Contingencies Disclosure [Abstract]
2013	$2,188
2014	5,334
2015	4,050
2016	2,799
2017	2,570
Thereafter	2,651
Total minimum lease payments	$19,592

Segments_and_Information_about2

Segments and Information about Revenues by Geographic Region (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting [Abstract]
United States and Canada	$40,446	$24,765	$73,018	$45,252
International	9,438	4,351	16,884	8,549
Total revenues	$49,884	$29,116	$89,902	$53,801

Net_Income_Loss_Per_Share_Deta

Net Income (Loss) Per Share (Details) (USD $)	3 Months Ended		6 Months Ended		0 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	22-May-13	22-May-13	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2012
					Common Class A [Member]	Common Class B [Member]	Series A Preferred Stock [Member]	Series B Preferred Stock [Member]	Stock Options [Member]	Stock Options [Member]	Stock Options [Member]	Stock Options [Member]	Convertible Preferred Stock [Member]	Convertible Preferred Stock [Member]	Convertible Preferred Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss)	($2,575)	$1,059	($6,610)	$2,116
Less: Undistributed earnings allocated to participating securities	0	303	0	605
Less: Allocation of net income to participating preferred shares - basic	0	257	0	516
Less: Allocation of net income to participating preferred shares - diluted	0	230	0	463
Net income (loss) attributable to common stockholders - basic	-2,575	499	-6,610	995
Net income (loss) attributable to common shareholders - diluted	($2,575)	$526	($6,610)	$1,048
Weighted average shares outstanding used to compute basic net income (loss) per share	46,893,000	33,834,000	40,867,000	33,592,000
Net income (loss) per share attributable to common stockholders - basic	($0.05)	$0.01	($0.16)	$0.03
Stock options	0	5,924,000	0	5,827,000
Warrants	0	31,000	0	31,000
Weighted average shares used to compute diluted net income (loss) per share	46,893,000	39,789,000	40,867,000	39,450,000
Net income (loss) per share attributable to common stockholders - diluted	($0.05)	$0.01	($0.16)	$0.03
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	15,359,000	17,416,000	15,359,000	17,416,000					15,359,000	0	15,359,000	0	0	0	17,416,000
Stock Issued During Period, Shares, New Issues					6,230,000
Shares Sold in Public Offering, Existing Shares, Number of Shares Sold					3,200,000	2,000,000
Per annum dividend rate (in usd per share)							$0.03	$0.14

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (Money Market Funds [Member], USD $)	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments fair value	$208,641	$12,015
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments fair value	208,641	12,015
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments fair value	0	0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments fair value	$0	$0