Tableau Software 10-Q 7 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Statement	3 Months Ended
	Mar. 31, 2014	Apr. 30, 2014	Apr. 30, 2014
		Common Class A [Member]	Common Class B [Member]
Document Information [Line Items]	'	'	'
Document Type	'10-Q	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Mar-14	'	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'Q1	'	'
Entity Registrant Name	'TABLEAU SOFTWARE INC	'	'
Entity Central Index Key	'0001303652	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Non-accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	40,205,590	27,759,630

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$616,508	$252,674
Accounts receivable, net	50,513	61,158
Prepaid expenses and other current assets	7,118	7,180
Income taxes receivable	2,069	2,033
Deferred income taxes	8,860	9,136
Total current assets	685,068	332,181
Property and equipment, net	22,667	21,338
Deferred income taxes	813	589
Deposits and other noncurrent assets	812	819
Total assets	709,360	354,927
Current liabilities	'	'
Accounts payable	4,056	2,178
Accrued liabilities and other current liabilities	10,081	8,456
Accrued compensation and employee related benefits	19,253	27,187
Income taxes payable	109	178
Deferred revenue in current liabilities	69,910	66,290
Total current liabilities	103,409	104,289
Deferred revenue	3,622	3,264
Other long-term liabilities	2,478	2,714
Total liabilities	109,509	110,267
Commitments and contingencies (Note 6)	'	'
Convertible preferred stock	'	'
Convertible Preferred Stock	0	0
Stockholdersb equity (deficit)	'	'
Additional paid-in capital	600,211	239,406
Accumulated other comprehensive loss	-56	-71
Retained earnings (accumulated deficit)	-311	5,318
Total stockholdersb equity	599,851	244,660
Total liabilities and stockholdersb equity	709,360	354,927
Common Class B [Member]	'	'
Stockholdersb equity (deficit)	'	'
Common Stock	3	4
Common Class A [Member]	'	'
Stockholdersb equity (deficit)	'	'
Common Stock	$4	$3

Consolidated_Balance_Sheets_Ba

Consolidated Balance Sheets Balance Sheet Parenthetical (USD $)	Mar. 31, 2014	Dec. 31, 2013
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	10,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Valuation Allowances and Reserves, Balance	$766	$805
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	27,763,181	33,421,033
Common Stock, Shares, Outstanding	27,763,181	33,421,033
Common Class A [Member]	'	'
Par value of authorized shares	$0.00	$0.00
Shares authorized for issuance	750,000,000	750,000,000
Shares issued and outstanding	40,051,054	28,777,653
Common Stock, Shares, Outstanding	40,051,054	28,777,653

Consolidated_Statement_of_Oper

Consolidated Statement of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Revenues	'		'
License	$48,445		$26,426
Maintenance and services	26,106		13,592
Total revenues	74,551		40,018
Cost of revenues	'		'
License	164		176
Maintenance and services	7,029		3,374
Total cost of revenues	7,193	[1]	3,550	[1]
Gross profit	67,358		36,468
Operating expenses	'		'
Sales and marketing	39,321	[1]	23,673	[1]
Research and development	22,174	[1]	12,941	[1]
General and administrative	7,757	[1]	5,601	[1]
Total operating expenses	69,252		42,215
Operating income (loss)	-1,894		-5,747
Other income (expense), net	-207		-53
Loss before income tax expense (benefit)	-2,101		-5,800
Income tax expense (benefit)	3,528		-1,765
Net income (loss)	-5,629		-4,035
Net income (loss) per share attributable to common stockholders	'		'
Basic (in usd per share)	($0.09)		($0.12)
Diluted (in usd per share)	($0.09)		($0.12)
Weighted average shares used to compute net income (loss) per share attributable to common stockholders	'		'
Basic (in shares)	63,444		34,833
Diluted (in shares)	63,444		34,833
Cost of Revenues [Member]	'		'
Share-based Compensation [Abstract]	'		'
Allocated Share-based Compensation Expense	339		73
Sales and Marketing [Member]	'		'
Share-based Compensation [Abstract]	'		'
Allocated Share-based Compensation Expense	3,159		819
Research and Development [Member]	'		'
Share-based Compensation [Abstract]	'		'
Allocated Share-based Compensation Expense	3,404		1,035
General and Administrative [Member]	'		'
Share-based Compensation [Abstract]	'		'
Allocated Share-based Compensation Expense	$1,061		$572
[1]	Includes stock-based compensation expense as follows:B Three Months Ended March 31,B 2014B 2013B (in thousands)Cost of revenues$339B $73Sales and marketing3,159B 819Research and development3,404B 1,035General and administrative1,061B 572

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Comprehensive Income (Loss) Statement (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'	'
Net loss	($5,629)	($4,035)
Other comprehensive loss:	'	'
Foreign currency translation adjustment	15	-10
Total comprehensive income (loss)	($5,614)	($4,045)

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Operating activities	'	'
Net loss	($5,629)	($4,035)
Adjustment to reconcile net income (loss) to net cash provided by operating activities	'	'
Depreciation and amortization expense	2,520	1,342
Provision for doubtful accounts	0	18
Stock-based compensation expense	7,963	2,499
Excess tax benefit from stock-based compensation	-3,329	-43
Deferred income taxes	3,381	64
Changes in operating assets and liabilities	'	'
Accounts receivable	10,655	2,590
Prepaid expenses, deposits and other assets	92	-547
Income taxes receivable	-36	-2,536
Deferred revenue	3,953	5,561
Accounts payable and accrued liabilities	-5,172	-748
Income taxes payable	-72	40
Net cash provided by operating activities	14,326	4,205
Investing activities	'	'
Purchase of property and equipment	-3,708	-3,038
Net cash used in investing activities	-3,708	-3,038
Financing activities	'	'
Proceeds from public offering, net of underwriters discount and offering costs	344,386	0
Proceeds from exercise of stock options	5,477	1,052
Deferred initial public offering costs	0	-1,050
Excess tax benefit from stock-based compensation	3,329	43
Net cash provided by financing activities	353,192	45
Effect of exchange rate changes on cash and cash equivalents	24	-34
Net increase in cash and cash equivalents	363,834	1,178
Cash and cash equivalents	'	'
Beginning of year	252,674	39,302
End of year	616,508	40,480
Accrued public offering costs	350	79
Accrued purchases of property and equipment	$2,595	$541

Description_of_Business

Description of Business	3 Months Ended
	Mar. 31, 2014
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	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Summary of Significant Accounting Policies
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial information has been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. The condensed consolidated balance sheet data as of December 31, 2013 was derived from audited financial statements, but does not include all disclosures required by GAAP. The condensed consolidated financial information should be read in conjunction with the consolidated financial statements and notes included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2013 filed with the SEC on February 27, 2014.
	In the opinion of management, the accompanying unaudited condensed consolidated financial information includes all normal recurring adjustments necessary for a fair presentation of the Company's financial position, results of operations, comprehensive loss and cash flows for the interim periods, but is not necessarily indicative of the results that may be expected for the year ending December 31, 2014. All intercompany accounts and transactions have been eliminated in consolidation.
	Public Offering
	In March 2014, we closed a follow-on offering, in which we sold 4,000,000 shares of our Class A common stock at a price to the public of $89.25 per share. The aggregate offering price for shares sold in the offering was approximately $344.0 million, net of underwriting discounts, commissions and offering costs.
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of 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.
	Risks and Uncertainties
	Inherent in our business are various risks and uncertainties, including our limited operating history and development of advanced technologies in a rapidly changing industry. These risks include our ability to manage our rapid growth and our ability to attract new customers and expand sales to existing customers, as well as other risks and uncertainties. In the event that we do not successfully implement our business plan, certain assets may not be recoverable, certain liabilities may not be paid and investments in our capital stock may not be recoverable. Our success depends upon the acceptance of our technology, development of sales and distribution channels, and our ability to generate significant revenues from the use of our technology.
	Segments
	We follow the authoritative literature that established annual and interim reporting standards for an 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 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.
	Concentrations of 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 March 31, 2014 and December 31, 2013, no individual customer accounted for 10% or more of total accounts receivable. For the three months ended March 31, 2014 and 2013, no individual customer represented 10% or more of our total revenues.
	Property and Equipment
	Property and equipment are stated at cost, net of accumulated depreciation and amortization. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets generally ranging from three to seven years. Leasehold improvements are amortized over the shorter of their estimated useful life or the remaining lease term.
	Leased buildings under build-to-suit lease arrangements are capitalized and included in property and equipment when we are involved in the construction of the structural improvements or take construction risk prior to the commencement of the lease. Upon completion of the construction under the build-to-suit leases, we assess whether those arrangements qualify for sales recognition under the sale-leaseback accounting guidance. If we continue to be the deemed owner, the facilities would be accounted for as financing leases.
	When assets are retired or disposed of, the cost and accumulated depreciation are removed from the accounts, and any resulting gains or losses are included in results of operations. Maintenance and repairs that do not improve or extend the lives of the respective assets are charged to expense in the period incurred.
	Recent Accounting Pronouncements
	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	3 Months Ended
	Mar. 31, 2014
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 B common stock is entitled to ten votes per share and each holder of Class A common stock is entitled to one vote per share. At its discretion, the board of directors may declare dividends on shares of common stock, subject to the rights of our preferred stockholders, if any. Upon liquidation or dissolution, holders of common stock will receive distributions only after preferred stock preferences have been satisfied.

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2014
Share-based Compensation [Abstract]	'
Stock-Based Compensation	'
	Stock-Based Compensation
	A summary of the option activity under our equity incentive plan during the three months ended March 31, 2014 is presented below:
		Options Outstanding
		Shares		Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
						(in years)	(in thousands)
	Balances at December 31, 2013	12,236,400		$	7.64
	Options exercised	(1,615,549	)	3.39
	Options forfeited	(72,570	)	13.38
	Balances at March 31, 2014	10,548,281		$	8.25	7.4	$	715,450
	Vested and expected to vest at March 31, 2014	10,251,945		$	8.13	7.4	$	696,610
	Exercisable at March 31, 2014	4,887,401		$	4.72	6.2	$	348,767
	We also grant Restricted Stock Unit ("RSU") awards to our employees and non-employee directors under the provisions of our equity incentive plan. The fair value of an RSU is determined by using the closing price of our Class A common stock on the New York Stock Exchange on the date of grant. An RSU award entitles the holder to receive shares of the Company’s Class A common stock as the award vests, which is generally based on length of service. The Company's unvested RSUs do not have nonforfeitable rights to dividends or dividend equivalents.
	The following provides a summary of our RSU activity during the three months ended March 31, 2014:
		Number of Shares Underlying Outstanding RSUs		Weighted-Average Grant-Date Fair Value per RSU
	RSUs outstanding at December 31, 2013	574,350		$	64.06
	RSUs granted	942,856		97.64
	RSUs forfeited	(4,278	)	75.03
	RSUs outstanding at March 31, 2014	1,512,928		$	84.95
	Stock-based compensation expense is amortized using the straight-line method over the vesting period. As of March 31, 2014, total unrecognized compensation cost, adjusted for estimated forfeitures, related to stock options and unvested RSUs was approximately $139.8 million, which is expected to be recognized over a period of approximately 3.5 years.
	The summary of shares available for issuance for equity based awards (including stock options and RSUs) for the three months ended March 31, 2014 are as follows:
		Shares Available for Grant
	Balances at December 31, 2013	5,313,281
	Authorized	3,109,934
	Granted	(942,856	)
	Forfeited	76,848
	Balances at March 31, 2014	7,557,207

Income_Tax

Income Tax	3 Months Ended
	Mar. 31, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	Our income tax expense or benefit from income taxes for interim periods is determined using an estimate of our annual effective tax rate, adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter we update our estimate of the annual effective tax rate, and if our estimated tax rate changes, we make a cumulative adjustment.
	Our effective tax rate was (167.9)% and 30.4% for the three months ended March 31, 2014 and 2013, respectively. The change in effective tax rate is primarily due to the expiration of the U.S. research and development ("R&D") tax credits as of December 31, 2013 and an increase in non-deductible stock-based compensation.
	During the three months ended March 31, 2014, we recognized income tax expense of $3.5 million, which includes $0.8 million of discrete tax benefits relating to disqualifying dispositions on incentive stock options. During the three months ended March 31, 2013, we recognized an income tax benefit of $1.8 million, which included $1.1 million of discrete tax benefits relating to the reinstatement of the U.S. research and development tax credits.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	As of March 31, 2014, our principal obligations consisted of obligations outstanding under non-cancellable leases. We lease our facilities under operating leases that expire at various dates through 2020. The following table represents our non-cancellable minimum lease payments as of March 31, 2014 (in thousands):
	Period Ending	Amount
	Remainder of 2014	$	5,124
	2015	4,882
	2016	3,381
	2017	2,649
	2018	1,419
	Thereafter	1,286
	Total	$	18,741
	On February 5, 2014, we entered into a ten year lease agreement for which the lease term begins upon completion of leasehold improvements. We expect the lease term and our occupancy to begin during August 2014. The lease includes two optional renewal periods of five years each. We capitalize construction in progress and record a corresponding long-term liability for a build-to-suit lease agreement under which we are considered the owner, for accounting purposes, during the construction period. The construction period began during the second quarter of 2014. We will be involved in the construction of structural improvements and take construction risk prior to commencement of the lease. Accordingly, we are considered the accounting owner during the construction period and we recognized building costs and a related long-term financing obligation once construction activities began during the second quarter of 2014.
	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 include the impacts of negotiations, estimated settlements, legal rulings, advice of legal counsel, and other information and events pertaining to a particular matter.
	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	3 Months Ended
	Mar. 31, 2014
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 March 31,
		2014		2013
		(in thousands)
	United States and Canada	$	57,766	$	32,572
	International	16,785		7,446
	Total revenues	$	74,551	$	40,018

Net_Income_Loss_Per_Share

Net Income (Loss) Per Share	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Net Income (Loss) Per Share	'
	Net Income (Loss) Per Share
	Immediately prior to the closing of the our initial public offering ('IPO") in May 2013, all outstanding shares of our Series A preferred stock and Series B preferred stock were converted into 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, as of March 31, 2014, 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 holder of Class B common stock is entitled to ten votes per share and each share of Class A common stock is entitled to one vote 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. As Series A and Series B preferred stock did not have a contractual obligation to share in our losses, there was no allocations to preferred shares in the three months ended March 31, 2013. As all shares of Series A and Series B preferred stock were converted into shares of Class B common stock in connection with our IPO, there have been no shares of preferred stock outstanding since the IPO, and therefore there was no allocation to preferred shares in the three months ended March 31, 2014.
	The following table presents the computation of basic and diluted net loss per share attributable to common stockholders:
		Three Months Ended March 31,
		2014			2013
		(in thousands, except per share amounts)
	Basic and diluted net loss attributable to common stockholders:
	Net loss attributable to common stockholders - basic and diluted	$	(5,629	)	$	(4,035	)
	Weighted average shares outstanding used to compute basic and diluted net income per share	63,444			34,833
	Net loss per share attributable to common stockholders - basic and diluted	$	(0.09	)	$	(0.12	)
	For the three months ended March 31, 2014 and 2013 outstanding stock awards were antidilutive because of our net loss, and 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 awards and convertible preferred shares were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented as their effect would have been antidilutive:
			Three Months Ended March 31,
			2014		2013
			(in thousands)
	Shares subject to outstanding common stock awards		12,061		15,160
	Convertible preferred shares		—		17,416
	Total potentially dilutive shares		12,061		32,576

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	We categorize assets and liabilities recorded at fair value 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.
	The following table presents the fair value of our financial assets using the fair value hierarchy:
			March 31, 2014
	Description		Level 1		Level 2		Level 3		Total
			(in thousands)
	Money market funds		$	605,527	$	—	$	—	$	605,527
			December 31, 2013
	Description		Level 1		Level 2		Level 3		Total
			(in thousands)
	Money market funds		$	238,810	$	—	$	—	$	238,810
	We have no financial assets or liabilities measured using Level 2 or Level 3 inputs.

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	Subsequent Events
	During the second quarter of 2014, we commenced construction activities for tenant improvements on an office space and recognized approximately $11.6 million in building costs and a related financing obligation for the build-to-suit construction project in which we are considered the accounting owner during the construction period. Additionally, during the second quarter of 2014 the underlying lease agreement became non-cancellable and the following represents our additional non-cancellable minimum lease payments related to this lease:
	Period Ending	Amount
		(in thousands)
	Remainder of 2014	$	637
	2015	1,547
	2016	1,594
	2017	1,642
	2018	1,691
	Thereafter	10,408
	Total	$	17,519

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial information has been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. The condensed consolidated balance sheet data as of December 31, 2013 was derived from audited financial statements, but does not include all disclosures required by GAAP. The condensed consolidated financial information should be read in conjunction with the consolidated financial statements and notes included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2013 filed with the SEC on February 27, 2014.
	In the opinion of management, the accompanying unaudited condensed consolidated financial information includes all normal recurring adjustments necessary for a fair presentation of the Company's financial position, results of operations, comprehensive loss and cash flows for the interim periods, but is not necessarily indicative of the results that may be expected for the year ending December 31, 2014. All intercompany accounts and transactions have been eliminated in consolidation.
Pubic Offering	'
	Public Offering
	In March 2014, we closed a follow-on offering, in which we sold 4,000,000 shares of our Class A common stock at a price to the public of $89.25 per share. The aggregate offering price for shares sold in the offering was approximately $344.0 million, net of underwriting discounts, commissions and offering costs.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of 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 an 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 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.
Concentrations of Credit Risk	'
	Concentrations of 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.
Property, Plant and Equipment, Policy [Policy Text Block]	'
	Property and Equipment
	Property and equipment are stated at cost, net of accumulated depreciation and amortization. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets generally ranging from three to seven years. Leasehold improvements are amortized over the shorter of their estimated useful life or the remaining lease term.
	Leased buildings under build-to-suit lease arrangements are capitalized and included in property and equipment when we are involved in the construction of the structural improvements or take construction risk prior to the commencement of the lease. Upon completion of the construction under the build-to-suit leases, we assess whether those arrangements qualify for sales recognition under the sale-leaseback accounting guidance. If we continue to be the deemed owner, the facilities would be accounted for as financing leases.
	When assets are retired or disposed of, the cost and accumulated depreciation are removed from the accounts, and any resulting gains or losses are included in results of operations. Maintenance and repairs that do not improve or extend the lives of the respective assets are charged to expense in the period incurred.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	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)	3 Months Ended
	Mar. 31, 2014
Share-based Compensation [Abstract]	'
Summary of Option Activity	'
	A summary of the option activity under our equity incentive plan during the three months ended March 31, 2014 is presented below:
		Options Outstanding
		Shares		Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
						(in years)	(in thousands)
	Balances at December 31, 2013	12,236,400		$	7.64
	Options exercised	(1,615,549	)	3.39
	Options forfeited	(72,570	)	13.38
	Balances at March 31, 2014	10,548,281		$	8.25	7.4	$	715,450
	Vested and expected to vest at March 31, 2014	10,251,945		$	8.13	7.4	$	696,610
	Exercisable at March 31, 2014	4,887,401		$	4.72	6.2	$	348,767
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	'
	The following provides a summary of our RSU activity during the three months ended March 31, 2014:
		Number of Shares Underlying Outstanding RSUs		Weighted-Average Grant-Date Fair Value per RSU
	RSUs outstanding at December 31, 2013	574,350		$	64.06
	RSUs granted	942,856		97.64
	RSUs forfeited	(4,278	)	75.03
	RSUs outstanding at March 31, 2014	1,512,928		$	84.95
	quity based awards (including stock options and RSUs) for the three months ended March 31, 2014 are as follows:
		Shares Available for Grant
	Balances at December 31, 2013	5,313,281
	Authorized	3,109,934
	Granted	(942,856	)
	Forfeited	76,848
	Balances at March 31, 2014	7,557,207

Commitments_and_Contigencies_T

Commitments and Contigencies (Tables)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Future Minimum Lease Payments	'
	The following table represents our non-cancellable minimum lease payments as of March 31, 2014 (in thousands):
	Period Ending	Amount
	Remainder of 2014	$	5,124
	2015	4,882
	2016	3,381
	2017	2,649
	2018	1,419
	Thereafter	1,286
	Total	$	18,741

Segments_and_Information_about1

Segments and Information about Revenues by Geographic Region (Tables)	3 Months Ended
	Mar. 31, 2014
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 March 31,
		2014		2013
		(in thousands)
	United States and Canada	$	57,766	$	32,572
	International	16,785		7,446
	Total revenues	$	74,551	$	40,018

Net_Income_Loss_Per_Share_Tabl

Net Income (Loss) Per Share (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Schedule of Computation of Earnings Per Share, Basic and Diluted	'
	The following table presents the computation of basic and diluted net loss per share attributable to common stockholders:
		Three Months Ended March 31,
		2014			2013
		(in thousands, except per share amounts)
	Basic and diluted net loss attributable to common stockholders:
	Net loss attributable to common stockholders - basic and diluted	$	(5,629	)	$	(4,035	)
	Weighted average shares outstanding used to compute basic and diluted net income per share	63,444			34,833
	Net loss per share attributable to common stockholders - basic and diluted	$	(0.09	)	$	(0.12	)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	'
	The following shares subject to outstanding awards and convertible preferred shares were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented as their effect would have been antidilutive:
			Three Months Ended March 31,
			2014		2013
			(in thousands)
	Shares subject to outstanding common stock awards		12,061		15,160
	Convertible preferred shares		—		17,416
	Total potentially dilutive shares		12,061		32,576

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
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:
		March 31, 2014
	Description	Level 1		Level 2		Level 3		Total
		(in thousands)
	Money market funds	$	605,527	$	—	$	—	$	605,527
		December 31, 2013
	Description	Level 1		Level 2		Level 3		Total
		(in thousands)
	Money market funds	$	238,810	$	—	$	—	$	238,810

Subsequent_Events_Tables

Subsequent Events (Tables)	3 Months Ended
	Mar. 31, 2014
Subsequent Events [Abstract]	'
Schedule of future minimum lease payments	'
	Additionally, during the second quarter of 2014 the underlying lease agreement became non-cancellable and the following represents our additional non-cancellable minimum lease payments related to this lease:
	Period Ending	Amount
		(in thousands)
	Remainder of 2014	$	637
	2015	1,547
	2016	1,594
	2017	1,642
	2018	1,691
	Thereafter	10,408
	Total	$	17,519

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	0 Months Ended	3 Months Ended		0 Months Ended				3 Months Ended
In Thousands, except Share data, unless otherwise specified	22-May-13	Mar. 31, 2014	Mar. 31, 2013	22-May-13	Mar. 21, 2014	Dec. 31, 2013	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
		segment		Common Class A [Member]	Common Class A [Member]	Accounts Receivable [Member]	Accounts Receivable [Member]	Revenue [Member]	Revenue [Member]
						Customer Concentration Risk [Member]	Customer Concentration Risk [Member]	Customer Concentration Risk [Member]	Customer Concentration Risk [Member]
						customer	customer	customer	customer
Class of Stock [Line Items]	'	'	'	'	'	'	'	'	'
Stock Issued During Period, Shares, New Issues	'	4,000,000	'	3,200,000	'	'	'	'	'
Price per share of stock sold in IPO (in $ per share)	'	'	'	'	$89.25	'	'	'	'
Proceeds from public offering, net of underwriters discount and offering costs	$344,000	$344,386	$0	'	'	'	'	'	'
Number of Operating Segments	'	1	'	'	'	'	'	'	'
Number of Customers with more than 10% of Period Receivables	'	'	'	'	'	0	0	'	'
Number of Customers with More than 10% of Period Revenue	'	'	'	'	'	'	'	0	0

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
	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	'
Common Class A [Member]	'	'
Class of Stock [Line Items]	'	'
Shares authorized for issuance	750,000,000	750,000,000
Par value of authorized shares	$0.00	$0.00
Votes per share entitled to share holder	1	'

StockBased_Compensation_Detail

Stock-Based Compensation (Details 1) (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014
Share-based Compensation [Abstract]	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	'7 years 5 months 0 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'
Options Outstanding, Shares, Beginning of Period	12,236,400
Options Outstanding, Shares, Options exercised	-1,615,549
Options Outstanding, Shares, Forfeited	-72,570
Options Outstanding, Shares, End of Period	10,548,281
Options Outstanding, Shares, Vested and Expected to Vest	10,251,945
Options Outstanding, Shares, Exercisable	4,887,401
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, USD per share	$7.64
Options Outstanding, Weighted Average Exercise Price, Options exercised, USD per share	$3.39
Options Outstanding, Weighted Average Exercise Price, Options forfeited, USD per share	$13.38
Options Outstanding, Weighted Average Exercise Price, End of Period, USD per share	$8.25
Options Outstanding, Weighted Average Exercise Price Per Share, Vested and Expected to Vest, USD per share	$8.13
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	'7 years 4 months 20 days
Options Outstanding, Weighted Average Exercise Price Per Share, Exercisable, USD per share	$4.72
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	'6 years 2 months 26 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]	'
Options Outstanding, Aggregate Intrinsic Value	$715,450
Options Outstanding, Aggregate Intrinsic Value, Vested and Expected to Vest	696,610
Options Outstanding, Aggregate Intrinsic Value, Exercisable	$348,767

StockBased_Compensation_Stock_

Stock-Based Compensation Stock Based Compensation (RSU) Details 2 (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]	'
RSUs granted	942,856
Restricted Stock Units (RSUs) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]	'
Shares Outstanding, Beginning of Period	574,350
RSUs granted	942,856
RSUs forfeited	-4,278
Shares Outstanding, End of Period	1,512,928
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Weighted Average Exercise Price [Roll Forward]	'
Weighted Average Fair Value, Beginning of Period, USD per share	64.06
Weighted Average Fair Value, RSUs granted, USD per share	97.64
Weighted Average Fair Value, RSUs forfeited, USD per share	75.03
Weighted Average Fair Value, End of Period, USD per share	84.95

StockBased_Compensation_Narrat

Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized compensation cost	139.8
Stock Options [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Vesting period	'3 years 6 months 0 days

StockBased_Compensation_StockB

Stock-Based Compensation Stock-Based Compensation (Details 3) (Details) (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	3,109,934
Unrecognized compensation cost	$139.80
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'
Equity based awards, beginning of period	5,313,281
Granted	942,856
Forfeited	76,848
Equity based awards, end of period	7,557,207

Income_Tax_Narrative_Details

Income Tax - Narrative (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]	'	'
Effective tax rate	-167.90%	30.40%
Income tax expense (benefit)	$3,528,000	($1,765,000)
Discrete tax benefit related to incentive stock option	-800,000	'
Discrete tax benefit related to research and development	'	($1,100,000)

Commitments_and_Contingencies_

Commitments and Contingencies Commitments and Contingencies - Obligations (Details) (USD $)	Mar. 31, 2014
In Thousands, unless otherwise specified
Commitments and Contingencies Disclosure [Abstract]	'
Operating Leases, Remainder of 2014	$5,124
Operating Leases, 2015	4,882
Operating Leases, 2016	3,381
Operating Leases, 2017	2,649
Operating Leases, 2018	1,419
Operating Leases, Thereafter	1,286
Operating Leases, Total minimum lease payments	$18,741

Segments_and_Information_about2

Segments and Information about Revenues by Geographic Region (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]	'	'
Revenues	$74,551	$40,018
United States and Canada	'	'
Segment Reporting Information [Line Items]	'	'
Revenues	57,766	32,572
International [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Revenues	$16,785	$7,446

Net_Income_Loss_Per_Share_Deta

Net Income (Loss) Per Share (Details) (USD $)	3 Months Ended		0 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	22-May-13	22-May-13
			Common Class A [Member]	Common Class B [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'
Number of shares sold by existing shareholders	'	'	2,000,000	6,230,000
Stock Issued During Period, Shares, New Issues	4,000,000	'	3,200,000	'
Net loss attributable to common stockholders - basic and diluted	($5,629)	($4,035)	'	'
Weighted average shares outstanding used to compute basic and diluted net income per share	63,444,000	34,833,000	'	'
Net loss per share attributable to common stockholders - basic and diluted	($0.09)	($0.12)	'	'

Net_Income_Loss_Per_Share_Sche

Net Income (Loss) Per Share Schedule of Antidilutive Securities (Details)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'
Potentially dilutive shares	12,061	32,576
Shares subject to outstanding common stock awards	'	'
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'
Potentially dilutive shares	12,061	15,160
Convertible preferred shares	'	'
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'
Potentially dilutive shares	0	17,416

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (Money Market Funds [Member], USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments fair value	$605,527	$238,810
Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments fair value	605,527	238,810
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

Subsequent_Events_Details

Subsequent Events (Details) (Subsequent Event, USD $)	7-May-14
Subsequent Event	'
Subsequent Event [Line Items]	'
Costs recognized related to tenant improvements	$11,600,000
Remainder of 2014	637,000
2015	1,547,000
2016	1,594,000
2017	1,642,000
2018	1,691,000
Thereafter	10,408,000
Total	$17,519,000