Marketo (MKTO) 10-K 3 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Feb. 27, 2014	Jun. 28, 2013
Document and Entity Information	'	'	'
Entity Registrant Name	'Marketo, Inc.	'	'
Entity Central Index Key	'0001490660	'	'
Document Type	'10-K	'	'
Document Period End Date	31-Dec-13	'	'
Amendment Flag	'false	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Non-accelerated Filer	'	'
Entity Public Float	'	'	$258.10
Entity Common Stock, Shares Outstanding	'	40,208,473	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$128,299	$44,247
Accounts receivable, net of allowances of $329 and $336 for 2013 and 2012, respectively	26,946	14,106
Prepaid expenses and other current assets	3,218	2,379
Total current assets	158,463	60,732
Property and equipment, net	13,856	5,617
Goodwill	25,941	9,537
Intangible assets, net	7,095	2,734
Other assets	484	536
Total Assets	205,839	79,156
Current liabilities:	'	'
Accounts payable	3,527	2,217
Accrued expenses and other current liabilities	23,055	8,945
Deferred revenue	41,356	20,642
Current portion of credit facility	2,187	582
Total current liabilities	70,125	32,386
Credit facility, net of current portion	5,372	3,058
Other Liabilities	1,900	148
Total liabilities	77,397	35,592
Commitments and contingencies (Note 7)	'	'
Stockholder's equity:	'	'
Convertible preferred stock, par value $0.0001 per share - 20,000 and 51,752 shares authorized as of December 31, 2013 and 2012; 0 and 25,876 shares issued and outstanding as of December 31, 2013 and 2012; liquidation preference of $0 and $119,385 as of December 31, 2013 and 2012	'	119,121
Common stock, par value $0.0001 per share - 1,000,000 and 100,000 shares authorized as of December 31, 2013 and 2012; 39,250 and 3,195 shares issued and outstanding as of December 31,2013 and 2012	4	'
Additional paid-in capital	257,801	6,499
Accumulated other comprehensive income	198	145
Accumulated deficit	-129,561	-82,201
Total stockholders' equity	128,442	43,564
Total liabilities and stockholders' equity	$205,839	$79,156

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Per Share data, unless otherwise specified
Accounts receivable, allowances (in dollars)	$329	$336
Convertible preferred stock, par value (in dollars per share)	$0.00	$0.00
Convertible preferred stock, shares authorized	20,000	51,752
Convertible preferred stock, shares issued	0	25,876
Convertible preferred stock, shares outstanding	0	25,876
Convertible preferred stock, liquidation preference (in dollars)	$0	$119,385
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized	1,000,000	100,000
Common stock, shares issued	39,250	3,195
Common stock, shares outstanding	39,250	3,195

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Loss (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue:	'	'	'
Subscription and support	$85,095	$52,756	$29,823
Professional services and other	10,823	5,657	2,569
Total revenue	95,918	58,413	32,392
Cost of revenue:	'	'	'
Subscription and support	24,681	16,216	9,386
Professional services and other	13,298	8,442	5,550
Total cost of revenue	37,979	24,658	14,936
Gross profit:	'	'	'
Subscription and support	60,414	36,540	20,437
Professional services and other	-2,475	-2,785	-2,981
Total gross profit	57,939	33,755	17,456
Operating expenses:	'	'	'
Research and development	23,321	18,799	10,677
Sales and marketing	62,769	37,776	23,088
General and administrative	18,655	11,388	6,154
Total operating expenses	104,745	67,963	39,919
Loss from operations	-46,806	-34,208	-22,463
Other income (expense), net	-526	-158	-137
Loss before provision for income taxes	-47,332	-34,366	-22,600
Provision for income taxes	28	19	6
Net loss	-47,360	-34,385	-22,606
Net loss per share of common stock, basic and diluted (in dollars per share)	($1.92)	($12.26)	($9.94)
Shares used in computing net loss per share of common stock, basic and diluted (in shares)	24,709	2,806	2,274
Comprehensive loss:	'	'	'
Net loss	-47,360	-34,385	-22,606
Other comprehensive income:	'	'	'
Foreign currency translation adjustments	53	26	119
Comprehensive loss	($47,307)	($34,359)	($22,487)

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (USD $)

Total

Crowd Factory

Insightera, Ltd.

Convertible Preferred Stock

Convertible Preferred Stock

Common Stock

Common Stock

Common Stock

Additional Paid-in Capital

Additional Paid-in Capital

Additional Paid-in Capital

Accumulated Other Comprehensive Income

Accumulated Deficit

In Thousands, except Share data, unless otherwise specified

USD ($)

USD ($)

USD ($)

USD ($)

Crowd Factory

USD ($)

Crowd Factory

Insightera, Ltd.

USD ($)

Crowd Factory

Insightera, Ltd.

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Balance at Dec. 31, 2010

$32,216

'

'

$56,887

'

'

'

'

$539

'

'

'

($25,210)

Balance (in shares) at Dec. 31, 2010

'

'

'

21,246,000

'

2,408,000

'

'

'

'

'

'

'

Increase (Decrease) in Shareholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of convertible preferred stock, net of issuance costs of $66

49,934

'

'

49,934

'

'

'

'

'

'

'

'

'

Issuance of convertible preferred stock, net of issuance costs (in shares)

'

'

'

3,788,000

'

'

'

'

'

'

'

'

'

Issuance of common stock upon exercise and early exercise of stock options

239

'

'

'

'

'

'

'

239

'

'

'

'

Issuance of common stock upon exercise and early exercise of stock options (in shares)

'

'

'

'

'

296,000

'

'

'

'

'

'

'

Repurchase of common stock (in shares)

'

'

'

'

'

-8,000

'

'

'

'

'

'

'

Vesting of early exercised options

97

'

'

'

'

'

'

'

97

'

'

'

'

Stock-based compensation expense

1,309

'

'

'

'

'

'

'

1,309

'

'

'

'

Net loss

-22,606

'

'

'

'

'

'

'

'

'

'

'

-22,606

Foreign currency translation adjustments

119

'

'

'

'

'

'

'

'

'

'

119

'

Balance at Dec. 31, 2011

61,308

'

'

106,821

'

'

'

'

2,184

'

'

119

-47,816

Balance (in shares) at Dec. 31, 2011

'

'

'

25,034,000

'

2,696,000

'

'

'

'

'

'

'

Increase (Decrease) in Shareholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of common stock and convertible preferred stock in connection with acquisition

13,048

13,048

'

'

12,300

'

'

'

'

748

'

'

'

Issuance of common stock and convertible preferred stock in connection with acquisition (in shares)

'

'

'

'

842,000

'

99,000

'

'

'

'

'

'

Issuance of common stock upon exercise and early exercise of stock options

362

'

'

'

'

'

'

'

362

'

'

'

'

Issuance of common stock upon exercise and early exercise of stock options (in shares)

'

'

'

'

'

433,000

'

'

'

'

'

'

'

Repurchase of common stock (in shares)

'

'

'

'

'

-33,000

'

'

'

'

'

'

'

Vesting of early exercised options

233

'

'

'

'

'

'

'

233

'

'

'

'

Stock-based compensation expense

2,972

'

'

'

'

'

'

'

2,972

'

'

'

'

Net loss

-34,385

'

'

'

'

'

'

'

'

'

'

'

-34,385

Foreign currency translation adjustments

26

'

'

'

'

'

'

'

'

'

'

26

'

Balance at Dec. 31, 2012

43,564

'

'

119,121

'

'

'

'

6,499

'

'

145

-82,201

Balance (in shares) at Dec. 31, 2012

'

'

'

25,876,000

'

3,195,000

'

'

'

'

'

'

'

Increase (Decrease) in Shareholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of common stock and convertible preferred stock in connection with acquisition

14,069

'

14,069

'

'

'

'

'

'

'

14,069

'

'

Issuance of common stock and convertible preferred stock in connection with acquisition (in shares)

'

'

'

'

'

'

'

428,000

'

'

'

'

'

Issuance of common stock in connection with initial public offering, net of underwriting discounts

80,506

'

'

'

'

1

'

'

80,505

'

'

'

'

Issuance of common stock in connection with initial public offering, net of underwriting discounts (in shares)

'

'

'

'

'

6,659,000

'

'

'

'

'

'

'

Issuance of common stock in connection with private placement

6,500

'

'

'

'

'

'

'

6,500

'

'

'

'

Issuance of common stock in connection with private placement (in shares)

'

'

'

'

'

500,000

'

'

'

'

'

'

'

Issuance of common stock in connection with follow-on offering, net of underwriting discounts

22,519

'

'

'

'

'

'

'

22,519

'

'

'

'

Issuance of common stock in connection with follow-on offering, net of underwriting discounts (in shares)

'

'

'

'

'

662,000

'

'

'

'

'

'

'

Cost incurred with registration of common stock issued in connection with acquisition of Insightera

-226

'

'

'

'

'

'

'

-226

'

'

'

'

Costs incurred with initial public offering and follow-on offering

-4,079

'

'

'

'

'

'

'

-4,079

'

'

'

'

Conversion of preferred stock to common stock

'

'

'

-119,121

'

3

'

'

119,118

'

'

'

'

Conversion of preferred stock to common stock (in shares)

'

'

'

-25,876,000

'

25,876,000

'

'

'

'

'

'

'

Issuance of common stock upon exercise and early exercise of stock options

4,278

'

'

'

'

'

'

'

4,278

'

'

'

'

Issuance of common stock upon exercise and early exercise of stock options (in shares)

'

'

'

'

'

1,778,000

'

'

'

'

'

'

'

Vesting of restricted stock units (in shares)

'

'

'

'

'

169,000

'

'

'

'

'

'

'

Withholding taxes for the net share settlement of an equity award

-124

'

'

'

'

'

'

'

-124

'

'

'

'

Withholding taxes for the net share settlement of an equity award (in shares)

'

'

'

'

'

-5,000

'

'

'

'

'

'

'

Repurchase of common stock (in shares)

'

'

'

'

'

-12,000

'

'

'

'

'

'

'

Vesting of early exercised options

655

'

'

'

'

'

'

'

655

'

'

'

'

Stock-based compensation expense

8,087

'

'

'

'

'

'

'

8,087

'

'

'

'

Net loss

-47,360

'

'

'

'

'

'

'

'

'

'

'

-47,360

Foreign currency translation adjustments

53

'

'

'

'

'

'

'

'

'

'

53

'

Balance at Dec. 31, 2013

$128,442

'

'

'

'

$4

'

'

$257,801

'

'

$198

($129,561)

Balance (in shares) at Dec. 31, 2013

'

'

'

'

'

39,250,000

'

'

'

'

'

'

'

Consolidated_Statements_of_Sto1

Consolidated Statements of Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2011
Consolidated Statements of Stockholders' Equity	'
Issuance of convertible preferred stock, issuance costs	$66

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:	'	'	'
Net loss	($47,360)	($34,385)	($22,606)
Adjustments to reconcile net loss to net cash used in operating activities:	'	'	'
Depreciation and amortization	4,621	1,731	644
Stock-based compensation expense	8,075	2,972	1,309
Deferred income taxes	-65	'	'
Changes in operating assets and liabilities:	'	'	'
Accounts receivable, net	-12,702	-4,989	-5,030
Prepaid expenses and other current assets	-698	-203	-1,181
Other assets	-46	-505	-35
Accounts payable	2,050	-1,624	2,248
Accrued expenses and other current liabilities	13,177	3,647	2,244
Deferred revenue	20,438	9,536	6,391
Deferred rent	141	-28	31
Net cash used in operating activities	-12,369	-23,848	-15,985
Cash flows from investing activities:	'	'	'
Purchase of property and equipment	-11,401	-4,354	-1,675
Cash used in acquisition, net of cash acquired	-6,216	698	'
Capitalized software development	-459	'	'
Net cash used in investing activities	-18,076	-3,656	-1,675
Cash flows from financing activities:	'	'	'
Proceeds from initial public offering, net of underwriting discount	80,506	'	'
Proceeds from private placement	6,500	'	'
Proceeds from follow-on offering, net of underwriting discount	22,519	'	'
Proceeds from the sale of convertible preferred stock, net of issuance costs	'	'	49,934
Proceeds from issuance of common stock upon exercise of stock options	4,985	912	464
Repurchase of unvested common stock from terminated employees	-22	-67	-2
Withholding taxes remitted for the net share settlement of an equity award	-124	'	'
Proceeds from issuance of debt	4,500	3,640	'
Repayment of debt	-582	'	'
Payment incurred for common stock registration related to acquisition	-35	'	'
Payment of initial public offering costs and follow-on offering costs	-3,820	-99	'
Net cash provided by financing activities	114,427	4,386	50,396
Effect of foreign exchange rate changes on cash and cash equivalents	70	-35	207
Net increase (decrease) in cash and cash equivalents	84,052	-23,153	32,943
Cash and cash equivalents - beginning of period	44,247	67,400	34,457
Cash and cash equivalents -end of period	128,299	44,247	67,400
Supplemental disclosures of cash flow information:	'	'	'
Cash paid for interest	211	52	'
Cash paid for income taxes	33	4	'
Supplemental disclosure of noncash investing and financing activities	'	'	'
Conversion of convertible preferred stock into common stock upon initial public offering	119,121	'	'
Convertible preferred stock and common stock issued in connection with acquisitions, including options assumed	14,069	13,048	'
Vesting of early exercise options	655	233	97
Property and equipment acquired through tenant improvement allowance	$1,262	'	'

The_Company_and_Summary_of_Sig

The Company and Summary of Significant Accounting Policies and Estimates	12 Months Ended
	Dec. 31, 2013
The Company and Summary of Significant Accounting Policies and Estimates	'
The Company and Summary of Significant Accounting Policies and Estimates	'
	1. The Company and Summary of Significant Accounting Policies and Estimates
	Business
	Marketo, Inc. (Marketo or the Company) was incorporated in the state of California on January 20, 2006. The Company was reincorporated in the state of Delaware in 2010. The Company operates from its headquarters in San Mateo, California and has operating subsidiaries in Ireland, Australia, Israel and Japan.
	Marketo is a provider of a cloud-based marketing software platform that enables organizations to engage in modern relationship marketing. The Company's software platform is designed to enable the effective management, optimization and analytical measurement of marketing activities, enabling organizations to acquire new customers more efficiently, build stronger relationships with existing customers, improve sales effectiveness and drive faster revenue growth. On this platform, the Company delivers an easy to use, integrated suite of advanced applications. The Company generally offers its services on an annual subscription basis with quarterly or annual payment terms.
	Initial Public Offering and Follow-On Offering
	On May 17, 2013, the Company closed its initial public offering (IPO) where it sold 6,968,435 shares of common stock to the public, including the underwriters' overallotment option of 908,926 shares of common stock and 309,509 shares of common stock sold by selling stockholders, at a price of $13.00 per share. In addition, the Company sold 500,000 shares of common stock to funds affiliated with Battery Ventures in a concurrent private placement, at a price of $13.00 per share. The Company received aggregate proceeds of approximately $87.0 million from the IPO and concurrent private placement, net of underwriters' discounts and commissions, but before deduction of offering expenses of approximately $3.4 million. Upon the closing of the IPO, all shares of the Company's outstanding convertible preferred stock automatically converted into 25,876,142 shares of common stock.
	On September 13, 2013, the Company closed its follow-on public offering of 6,000,000 shares of its common stock, which included 662,498 shares of common stock sold by the Company and 5,337,502 shares of common stock sold by selling stockholders. The public offering price of the shares sold in the follow-on offering was $35.50 per share. The Company received aggregate proceeds of approximately $22.5 million from the follow-on offering, net of underwriters' discounts and commissions applicable to the sale of shares by the Company, but before deduction of offering costs of approximately $0.7 million payable by the Company.
	The Company did not receive any proceeds from the sale of shares by the selling stockholders.
	As of December 31, 2013, the Company had 39,249,978 shares of common stock issued and outstanding.
	Principles of Consolidation
	The consolidated financial statements are prepared in accordance with accounting principles generally accepted in the U.S. and include the consolidated accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.
	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Such management estimates and assumptions include the estimated selling price for the various elements in our customer contracts, the allowance for doubtful accounts, amounts collectible for sales tax, the fair value of common stock, stock-based compensation expense, useful lives of intangible assets and the valuation of deferred tax assets. Actual results could differ materially from those estimates, and such differences could be material to the financial statements and affect the results of operations reported in future periods.
	Foreign Currency Translation
	The functional currency of the Company's foreign subsidiaries is their respective local currency. Assets and liabilities denominated in currencies other than the U.S. dollar are translated into U.S. dollars at the exchange rates in effect at the balance sheet dates, with the resulting translation adjustments directly recorded to a separate component of accumulated other comprehensive income. Income and expense accounts are translated at average exchange rates during the year. Foreign currency remeasurement and transaction gains and losses are recorded in other income (expense), net. The Company recognized net foreign currency gains of approximately $0.3 million, $0.1 million and $0.1 million during the years ended December 31, 2013, 2012 and 2011, respectively.
	Segments
	The Company's chief operating decision maker is its Chief Executive Officer (CEO), who reviews financial information presented on a consolidated basis, accompanied by information about revenue by geographic region. Accordingly, the Company has determined that it has a single reportable segment.
	Cash and Cash Equivalents
	The Company considers all highly liquid investments purchased with original maturity of three months or less to be cash equivalents. Cash equivalents were $124.7 million and $42.5 million as of December 31, 2013 and 2012, respectively, consisting primarily of money market funds.
	Allowance for Doubtful Accounts
	Trade accounts receivable are carried at the original invoiced amount less an allowance made for doubtful accounts. The Company maintains an allowance for doubtful accounts based on the probability of future collection. When management becomes aware of circumstances that may decrease the likelihood of collection, it records a specific allowance against amounts due, which reduces the net receivable to the amount that management reasonably believes will be collected. For all other customers, management determines the adequacy of the allowance based on historical loss patterns, the number of days that billings are past due and an evaluation of the potential risk of loss associated with specific accounts. The Company reviews its allowance for doubtful accounts monthly and writes off receivable balances that are deemed to be uncollectible. Increases in the allowance are recorded in general and administrative expense in the period incurred. The Company does not have any off balance sheet credit exposure related to its customers.
	Below is a summary of the changes in allowance for doubtful accounts for the periods presented:
		Balance at		Provision, net		Write-offs			Balance at
		Beginning of		of Recoveries					End of
		Period							Period
		(in thousands)
	Year ended December 31, 2011	$	82	$	321	$	(178	)	$	225
	Year ended December 31, 2012		225		362		(251	)		336
	Year ended December 31, 2013		336		452		(459	)		329
	Property and Equipment
	Property and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the estimated useful lives of the asset, which is generally two to three years. Amortization of leasehold improvements is computed using the straight-line method over the shorter of the lease term or the estimated useful life of the asset or improvement. Depreciation and amortization begins when the asset is ready for its intended use. Cost of maintenance and repairs that do not improve or extend the lives of the respective assets are expensed as incurred.
	Capitalized Software Development Costs
	Costs incurred to develop the Company's cloud-based platform and applications consist of (a) certain external direct costs of materials and services incurred in developing or obtaining internal-use computer software and (b) payroll and payroll-related costs for employees who are directly associated with, and who devote time to, a given project. These costs generally consist of internal labor during configuration, coding and testing activities. Research and development costs incurred during the preliminary project stage or costs incurred for data conversion activities, training, maintenance and general and administrative or overhead costs are expensed as incurred. Capitalization begins when the preliminary project stage is complete, management with the relevant authority authorizes and commits to the funding of the software project, it is probable the project will be completed, and the software will be used to perform the functions intended and certain functional and quality standards have been met. Capitalized software development costs are amortized on a straight-line basis over the technology's estimated useful life, which is generally three years. Amortization expense during the years ended December 31, 2013, 2012 and 2011 was $166,000, $143,000 and $181,000 respectively.
	Costs incurred during the operating stage of the Company's software applications relating to upgrades and enhancements that resulted in added functionality are not capitalized because such upgrades and enhancements are essentially maintenance and, because upgrades and enhancements are provided frequently, do not have a useful life longer than one year. Costs that cannot be separated between maintenance of, and minor upgrades and enhancements to, internal-use software are expensed as incurred.
	Business Combinations
	When the Company acquires businesses, it allocates the purchase price to tangible assets and liabilities, and identifiable intangible assets acquired. Any residual purchase price is recorded as goodwill. The allocation of the purchase price requires management to make significant estimates in determining the fair values of assets acquired and liabilities assumed, especially with respect to intangible assets. These estimates are based on historical experience and information obtained from the management of the acquired companies. These estimates can include, but are not limited to, the cash flows that an asset is expected to generate in the future, the appropriate weighted-average cost of capital, and the cost savings expected to be derived from acquiring an asset. These estimates are inherently uncertain and unpredictable. In addition, unanticipated events and circumstances may occur which may affect the accuracy or validity of such estimates.
	Goodwill and Other Intangible Assets
	The Company records goodwill when the consideration paid in a purchase acquisition exceeds the fair value of the net tangible assets and the identified intangible assets acquired. Goodwill is not amortized, but rather is tested for impairment. The Company performs testing for impairment of goodwill at the end of each year, or as events occur or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The Company conducts a two-step test for impairment of goodwill. The first step of the test for goodwill impairment compares the fair value of the applicable reporting unit with its carrying value. If the fair value of a reporting unit is less than the reporting unit's carrying value, the Company will perform the second step of the test for impairment of goodwill. During the second step of the test for impairment of goodwill, the Company compares the implied fair value of the reporting unit's goodwill with the carrying value of that goodwill. If the carrying value of the goodwill exceeds the calculated implied fair value, the excess amount will be recognized as an impairment loss. The Company has determined that there is a single reporting unit for the purpose of goodwill impairment tests. Based on the above, the Company determined that its goodwill was not impaired at December 31, 2013.
	Other intangible assets, consisting of capitalized software development costs, developed technology, domain names, customer relationships and non-compete agreements, are stated at cost less accumulated amortization. All other intangible assets have been determined to have definite lives and are amortized on a straight-line basis over their estimated remaining economic lives, ranging from one to eight and one-half years. Amortization expense related to capitalized software development costs and developed technology is included in research and development expense. Amortization expense related to customer relationships and non-compete agreements is included in sales and marketing expense. Amortization expense related to domain names is included in general and administrative expense.
	Long-Lived Assets
	The Company continually monitors events and changes in circumstances that could indicate that carrying amounts of its long-lived assets, including property and equipment and identifiable intangible assets, may not be recoverable. When such events or changes in circumstances occur, the Company assesses the recoverability of long-lived assets by determining whether the carrying value of such assets will be recovered through their undiscounted expected future cash flow. If the future undiscounted cash flow is less than the carrying amount of these assets, the Company recognizes an impairment loss based on the excess of the carrying amount over the fair value of the assets. The Company did not recognize impairment charges on its long-lived assets during any of the periods presented.
	Concentration of Credit Risk and Significant Customers
	The Company's financial instruments that are exposed to concentrations of credit risk consist primarily of cash and cash equivalents and trade accounts receivable. Although the Company deposits its cash with multiple financial institutions, its deposits exceed federally insured limits. The Company generally does not require collateral from its customers and generally requires payment 30 days from the invoice date. The Company's accounts receivable are derived from revenue earned from customers located primarily in North America and Europe. The Company periodically evaluates the collectability of its accounts receivable and provides an allowance for potential credit losses as necessary, based on the age of the receivable and collection experience.
	No single customer accounted for more than 10% of accounts receivable as of December 31, 2013 and 2012. No single customer accounted for 10% or more of total revenue during the years ended December 31, 2013, 2012 or 2011.
	Revenue Recognition
	The Company derives its revenue from two sources:
	(1)   Subscription and support revenue.    Subscription and support revenue consists of subscription fees from customers accessing the Company's cloud-based software platform and applications, as well as related customer support services; and
	(2)   Professional services and other revenue.    Professional services and other revenue consists of fees associated with providing expert services that educate and assist the Company's customers on the best use of the Company's solutions as well as assist in the implementation of the Company's solution.
	Revenue recognition commences when all of the following conditions are met:
	•
	Persuasive evidence of an arrangement exists;
	•
	Delivery or performance has occurred;
	•
	Fees are fixed or determinable; and
	•
	Collectability is reasonably assured.
	In the majority of instances, revenue from new customers is generated under sales agreements with multiple elements, comprised of subscription and support fees from customers accessing the Company's cloud-based platform and applications and professional consultation services. The Company evaluates each element in a multiple-element arrangement to determine whether it represents a separate unit of accounting. An element constitutes a separate unit of accounting when the delivered item has stand-alone value and delivery of the undelivered element is probable and within the Company's control. Subscription and support have stand-alone value because they are routinely sold separately by the Company. Most of the professional services have stand-alone value because the Company has sold professional services separately, and there are several third party vendors that routinely provide similar professional services to the Company's customers on a stand-alone basis. Prior to the fourth quarter of 2011, some of the Company's professional services did not have stand-alone value because they were sold together with the subscription and support services. As such revenue was recognized ratably over the related subscription period, not to exceed billings amounts.
	In October 2009, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2009-13, Revenue Recognition (Topic 605): Multiple Deliverable Revenue Arrangements—a consensus of the FASB Emerging Issues Task Force (ASU 2009-13), which amended the previous multiple deliverable arrangements' accounting guidance. ASU 2009-13 amended the accounting standards for multiple-element revenue arrangements to:
	Provide updated guidance on whether multiple deliverables exist, how the elements in an arrangement should be separated, and how the consideration should be allocated;
	Require an entity to allocate revenue in an arrangement using estimated selling prices (ESP) of each element if a vendor does not have vendor specific objective evidence of selling price (VSOE) or third party evidence of selling price (TPE); and
	Eliminate the use of the residual method and require a vendor to allocate revenue using the relative selling price method, which eliminated the requirement to have VSOE of fair value on undelivered elements for revenue recognition.
	The Company adopted this accounting guidance prospectively beginning January 1, 2011, for applicable arrangements entered into or materially modified on or after January 1, 2011 (the beginning of the Company's fiscal year).
Prior to the adoption of ASU 2009-13, the Company was not able to establish VSOE of fair value for the undelivered elements, which in most instances was subscription and support services. As a result, the Company typically recognized subscription, support and professional services revenue ratably over the subscription and support contract period and presented subscription and support revenue and professional services revenue in the consolidated statements of operations and comprehensive loss based on the respective contractual prices.
As a result of the adoption of ASU 2009-13, the Company allocates total arrangement fees to each element in a multiple-element arrangement based on the relative selling price hierarchy of each element. The amount of arrangement fee allocated to each element is limited by contingent revenue, if any.
The relative selling price hierarchy consists of the following: Selling price for a deliverable is based on its 1) VSOE, if available, 2) TPE, if VSOE is not available, or 3) ESP, if neither VSOE nor TPE is available. Because the Company has been unable to establish VSOE or TPE for the elements of its arrangements, the Company establishes the ESP for each element primarily by considering the median of actual sales prices of each type of subscription and support sold and the weighted average of actual sales prices of professional services sold. For subscription and support arrangements, management considered other factors such as database sizes, pricing practices and market considerations.
Subscription and support revenue is recognized commencing upon delivery of the Company's cloud-based services, which is the date a new subscription is provisioned and made available to a new customer, or new or expanded capabilities are provisioned and added to an existing subscription, provided that all of the other revenue recognition criteria are first met, referred to as the "Commencement Date". Subscription and support revenue is recognized from the Commencement Date ratably thereafter over the remaining contractual term, which is generally three to 36 months. Amounts that have been invoiced are recorded in accounts receivable and in deferred revenue or revenue, depending on whether the revenue recognition criteria have been met.
Professional services and other have stand-alone value from the related subscription services. The majority of the Company's professional services contracts are offered on a time and material basis. When these services are not combined with subscription and support revenue in a multiple-element arrangement, services revenue is recognized as the services are rendered. In 2011, the Company's professional services also consisted of a small number of fixed price contracts, where revenue is recognized on a proportional performance method, based on input measures, which include making reasonably dependable estimates of the total effort to complete the project. Certain standard and non-standard professional service arrangements include customer acceptance provisions. Services provided under arrangements that include customer acceptance provisions are typically provided on a time and material basis, and the revenue is deferred and recognized upon customer acceptance of the service deliverable.
The Company's professional services also consist of short-term implementation services, which are offered at a flat fee. The enablement services teams assist customers with standard adoption procedures for the Company's platform. Because such enablement services typically are completed within a short period (usually one to ten days), the Company recognizes revenue from this service upon completion. The implementation services consist of short-term (usually spanning approximately 90 days) "use it or lose it", services to assist customers with standard implementation and to implement the customer's first marketing campaign which are offered at a flat fee. Such flat fees are recognized ratably over the 90 day period.
Education revenue is recognized after the services are performed.
The Company's time and material and fixed price professional service contracts are generally delivered within one year from the date of the arrangement.
At December 31, 2011, the Company's deferred professional services under the previous accounting guidance were not significant.
Sales and other taxes collected from customers to be remitted to government authorities are excluded from revenue.
Cost of Revenue
Cost of subscriptions, support, professional services and other revenue are expensed as incurred. Cost of subscription and support revenue primarily consists of expenses related to hosting the Company's service and providing support to the Company's customers. These expenses are comprised of data center operations costs and personnel and related costs directly associated with the Company's cloud infrastructure, customer support and customer success organizations, including salaries, benefits, bonuses and stock-based compensation, as well as allocated overhead. Overhead associated with facilities and depreciation, excluding depreciation related to the Company's data center infrastructure, is allocated to cost of revenue and operating expenses based on headcount. Cost of professional services and other revenue consists primarily of personnel and related costs directly associated with the Company's professional services and training organizations, including salaries, benefits, bonuses and stock-based compensation, the costs of sub-contracted third-party vendors, as well as allocated overhead.
Deferred Revenue
Deferred revenue consists of billings or payments received in advance of revenue recognition and are recognized as the revenue recognition criteria are met. The Company generally invoices its customers annually or in quarterly installments payable in advance. Accordingly, the deferred revenue balance does not represent the total contract value of annual or multi-year, noncancelable arrangements. The current portion of deferred revenue represents the amount that is expected to be recognized as revenue within one year from the balance sheet date. In all of the years presented, the Company did not have any long-term deferred revenue.
Commissions
Sales and marketing commissions are recognized as an expense generally at the time the customer order is signed. Substantially all of the effort by the sales and marketing organization is expended through the time of closing the sale with limited or no involvement thereafter. Commissions paid are subject to clawback by the Company in the event the customer fails to make payment on the agreement.
Warranties and Indemnification
The Company's cloud-based software platform and applications are typically warranted to perform in a manner consistent with general industry standards that are reasonably applicable and materially in accordance with the Company's on-line help documentation under normal use and circumstances.
The Company includes service level commitments to its customers warranting certain levels of uptime reliability and performance and permitting those customers to receive credits in the event that the Company fails to meet those levels. To date, the Company has not incurred any material costs as a result of such commitments and has not accrued any liabilities related to such obligations in the accompanying consolidated financial statements.
The Company's arrangements include provisions indemnifying customers against liabilities if the Company's products infringe a third-party's intellectual property rights. The Company has not incurred any costs as a result of such indemnification and has not accrued any liabilities related to such obligations in the accompanying consolidated financial statements.
The Company has also agreed to indemnify its directors and executive officers for costs associated with any fees, expenses, judgments, fines and settlement amounts incurred by any of those persons in any action or proceeding to which any of those persons is, or is threatened to be, made a party by reason of the person's service as a director or officer, including any action by the Company, arising out of that person's services as the Company's director or officer or that person's services provided to any other company or enterprise at the Company's request. The Company maintains director and officer insurance coverage that may enable the Company to recover a portion of any future indemnification amounts paid.
Advertising Costs
Advertising costs are expensed as incurred. For the years ended December 31, 2013, 2012 and 2011, advertising expenses were $1.5 million, $1.2 million and $1.0 million, respectively.
Stock-Based Compensation
The Company uses the fair value method for recording stock-based compensation. Stock-based compensation cost for stock options is estimated at the grant date based on each option's fair-value as calculated by the Black-Scholes option-pricing model. The Company recognizes compensation cost for stock option grants on a straight-line basis over the requisite service period for the entire award.
Stock-based compensation cost for restricted stock units (RSUs) is measured based on the fair value of the underlying shares on the date of grant. All RSUs are subject to a time-based vesting condition and some were also subject to a performance-based vesting condition, both of which must be satisfied before the RSUs are vested and settled for shares of common stock. The time-based vesting condition generally ranges from 2 to 4 years. The performance-based vesting condition was satisfied upon the occurrence of the Company's initial public offering. For the awards which were also subject to a performance-based vesting condition, no expense was recognized until the performance condition was satisfied. With respect to those performance-based RSUs which met the time-based vesting condition, those RSUS did not cancel when service to the Company was terminated; however, those shares did not vest until the performance-based vesting condition was met. RSUs that had not satisfied the time-based vesting condition as of termination of employment were automatically forfeited. All RSUs will expire 7 years from the grant date if not previously settled for shares of common stock.
Income Taxes
The provision for income taxes is computed using the asset and liability method, under which deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities, and for operating losses and tax credit carryforwards. Deferred tax assets and liabilities are measured using the currently enacted tax rates that apply to taxable income in effect for the years in which those tax assets are expected to be realized or settled. The Company records a valuation allowance to reduce deferred tax assets to the amount that is believed more likely than not to be realized.
Compliance with income tax regulations requires the Company to make decisions relating to the transfer pricing of revenue and expenses between each of its legal entities that are located in several countries. The Company's determinations include many decisions based on management's knowledge of the underlying assets of the business, the legal ownership of these assets, and the ultimate transactions conducted with customers and other third parties. The calculation of the Company's tax liabilities involves dealing with uncertainties in the application of complex tax regulations in multiple tax jurisdictions. The Company may be periodically reviewed by domestic and foreign tax authorities regarding the amount of taxes due. These reviews may include questions regarding the timing and amount of deductions and the allocation of income among various tax jurisdictions. In evaluating the exposure associated with various filing positions, the Company records estimated reserves when it is more likely than not that an uncertain tax position will not be sustained upon examination by a taxing authority. Such estimates are subject to change. See Note 10, "Income Taxes".
Net Loss per Share Attributable to Common Stockholders
Basic and diluted net loss per share of common stock is presented in conformity with the two-class method required for participating securities. Holders of Series A, B, C, D, E, F and G convertible preferred stock were each entitled to receive noncumulative dividends out of any funds legally available, when, as and if declared by the board of directors, payable prior and in preference to any dividends on any shares of the Company's common stock. The dividend rates for Series A, B, C, D, E, F and G convertible preferred stock were $0.08, $0.12, $0.20, $0.379, $0.5326, $1.056, and $1.168 per share, respectively. In the event a dividend is paid to common stockholders, the holders of the Series A, B, C, D, E, F and G convertible preferred stock were entitled to a proportionate share of any such dividends as if they were holders of common stock (on an as-if converted basis).
Under the two-class method, net income (loss) attributable to common stockholders is determined by allocating undistributed earnings, calculated as net income less current period convertible preferred stock non-cumulative dividends, between common stock and preferred stock. In computing diluted net income (loss) attributable to common stockholders, undistributed earnings are re-allocated to reflect the potential impact of dilutive securities. Basic net income (loss) per share of common stock is computed by dividing the net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding during the period. Unvested common shares resulting from the early exercises of stock options are excluded from the calculation of the weighted average common shares until they vest as they are subject to repurchase until they are vested. Those shares are added to the calculation of the weighted average common shares outstanding as they vest. Diluted net income per share attributable to common stockholders is computed by dividing 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 potential common shares for the period determined using the treasury stock method. For purposes of this calculation, convertible preferred stock, options to purchase common stock and restricted stock units are considered to be potential dilutive common shares, but have been excluded from the calculation of diluted net loss per share of common stock as their effect is antidilutive for all periods presented. Holders of convertible preferred stock and holders of stock subject to repurchase did not have a contractual obligation to share in the losses of the Company.
Given the Company is in a loss position for all periods presented, the Company has not allocated losses to any series of convertible preferred stock.
Recently Issued Accounting Pronouncements
In February 2013, the FASB issued Accounting Standards Update (ASU) No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. The amendments require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. This new accounting pronouncement is effective for interim and fiscal reporting periods beginning after December 15, 2012, with early adoption permitted. The Company adopted this standard during the first quarter of 2013. The adoption of this standard expanded the consolidated financial statement footnote disclosures, however there were no amounts reclassified out of accumulated other comprehensive income in any period presented.
In July 2013, the FASB issued ASU No. 2013-11, Income Taxes (Topic 740)—Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This amendment clarifies the guidance on the presentation of an unrecognized tax benefit, or a portion of an unrecognized tax benefit, in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. The Company does not believe the adoption of this update will have a material impact to the consolidated financial position, results of operations, or cash flows.

Acquisition

Acquisition	12 Months Ended
	Dec. 31, 2013
Acquisition	'
Acquisition	'
	2. Acquisition
	Insightera
	On December 19, 2013, the Company completed its acquisition of Insightera Ltd. (Insightera), a company organized under the laws of the State of Israel. Insightera, a SaaS company, provides a platform that allows its customers to track and compile data about users visiting their internet websites with the purpose of displaying the website information which is personalized in response to the data.
	As a result of the acquisition, the Company acquired all of the issued and outstanding shares of Insightera, and Insightera became a wholly owned subsidiary of the Company. Consideration consisted of $9.8 million of cash and 427,761 shares of common stock of the Company valued at the closing market price of $32.89. Of the issuable shares, 137,252 shares of the Company's common stock are held in escrow and are expected to be released from escrow no later than 18 months from the closing of the acquisition. Additionally, these employees were also granted 139,464 RSUs valued at approximately $6.1 million in January 2014.
	The acquisition was accounted for using the acquisition method of accounting under which assets and liabilities of Insightera were recorded at their respective fair values including an amount for goodwill representing the difference between the acquisition consideration and the fair value of the identifiable net assets.
	During fiscal 2013, the Company incurred $0.7 million in transaction costs related to the acquisition, which primarily consisted of legal, accounting and valuation-related expenses. These expenses were recorded in general and administrative expense in the accompanying Consolidated Statements of Operations and Comprehensive Loss. Additionally, the Company incurred approximately $0.2 million in costs associated with registering the common stock issued in connection with the acquisition. These costs have been recorded as a reduction in additional paid in capital.
	The total purchase price was allocated to the tangible and identified intangible assets acquired and liabilities assumed as of the closing date of the acquisition based upon their respective fair values. The Company expects to continue to obtain information to assist it in determining the fair values of the net assets acquired during the measurement period, which is up to one year from the acquisition date. The preliminary purchase price allocation is as follows:
		Purchase Price
		Allocation
		(in thousands)
	Tangible assets:
	Cash and cash equivalents	$	3,624
	Accounts receivable		46
	Other current assts		60
	Property and equipment		71
	Other assets		13
	Total tangible assets		3,814
	Liabilities assumed:
	Accounts payable and accrued liabilities		(391	)
	Deferred revenues		(116	)
	Other long-term liabilities		(27	)
	Total liabilities assumed		(534	)
	Deferred tax liability		(374	)
	Intangible assets		4,600
	Goodwill		16,404
	Total preliminary purchase price	$	23,910
	Each component of identifiable intangible assets acquired in connection with the above acquisition are as follows:
		Estimated			Amount
		Useful Life			(in thousands)
		(in years)
	Developed technology		4		$	3,650
	Domain names		3			250
	Customer relationships		3			700
	Total intangible assets				$	4,600
	Insightera's results of operations have been included in the Company's consolidated financial statements subsequent to the date of the acquisition. Since the closing date of the acquisition, Insightera contributed approximately $15,000 and $0.2 million to the Company's total revenues and net losses, respectively.
	Pro forma results of operations have not been presented because the effect of this acquisition was not material to the consolidated financial statements.
	Crowd Factory
	On April 17, 2012, the Company completed its acquisition of Crowd Factory, Inc. (Crowd Factory). Crowd Factory is a SaaS social campaign management platform that helps marketers accelerate social and word-of-mouth marketing, grow their marketing databases with unique social profiles and attract new customers.
	The transaction was valued at approximately $13.0 million, which included 842,458 shares of newly issued Series G convertible preferred stock valued at approximately $12.3 million, of which 12 percent or 101,095 shares, was withheld in escrow; 98,923 shares of common stock valued at approximately $453,000, of which 12 percent or 11,872 shares, was withheld in escrow; and the assumption of options to exercise 89,405 shares of common stock valued at approximately $295,100. Escrow shares were withheld for twelve months from acquisition date in order to protect the Company from certain indemnified losses that may arise from any inaccuracies or breach of any of Crowd Factory's general representations and warranties as of the acquisition date, other than certain fundamental representations.
	The total purchase price was allocated to the net assets acquired based upon their fair values as of April 17, 2012 as set forth below. The excess of the purchase price over the net assets acquired was recorded as goodwill. The following table summarizes the estimated fair values of the assets and liabilities assumed at the acquisition date.
		Esimated		Purchase Price
		Life		Allocation
		(Years)		(in thousands)
	Net tangible assets acquired			$	481
	Intangible assets:
	Developed technology	4.5			1,300
	Domain names	7			700
	Customer relationships	8.5			900
	Non-compete agreements	2			130
	Goodwill				9,537
	Total purchase price			$	13,048
	The Company paid change in control bonuses of approximately $850,000 to former Crowd Factory employees hired by Marketo which were expensed as incurred. These employees were also granted 308,218 RSUs valued at approximately $1.4 million under the terms described at Note 8 to the consolidated financial statements.
	Intangible assets are being amortized on a straight-line basis over an estimated useful life ranging from two to eight and one-half years.
	Pro forma results of operations have not been presented because the effect of this acquisition was not material to the consolidated financial statements.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2013
Fair Value of Financial Instruments	'
Fair Value of Financial Instruments	'
	3. Fair Value of Financial Instruments
	The Company measures certain financial assets at fair value. Fair value is determined based upon the exit price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants, as determined by either the principal market or the most advantageous market. Inputs used in the valuation techniques to derive fair values are classified based on a three-level hierarchy, as follows:
	•
	Level 1—Quoted prices in active markets for identical assets or liabilities.
	•
	Level 2—Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which all significant inputs are observable or can be derived principally from or corroborated by observable market data for substantially the full term of the assets or liabilities.
	•
	Level 3—Unobservable inputs to the valuation methodology that are significant to the measurement of fair value of assets or liabilities.
	The Company considers all highly liquid investments purchased with a remaining maturity of three months or less to be cash equivalents.
	For certain other financial instruments, including accounts receivable, accounts payable and other current liabilities, the carrying amounts approximate their fair value due to the relatively short maturity of these balances.
	As of December 31, 2013 and December 31, 2012 financial assets stated at fair value on a recurring basis were comprised of money market funds and certificates of deposit included within cash and equivalents. In general, and where applicable, the Company uses quoted prices in active markets for identical assets or liabilities to determine fair value. The Company applied this valuation technique to measure the fair value of the Company's Level 1 investments, such as money market funds. The fair value of the Company's investments in certain money market funds is their carrying value. Money market funds consist of cash equivalents with remaining maturities of three months or less at the date of purchase.
	If quoted prices in active markets for identical assets or liabilities are not available to determine fair value, then the Company uses quoted prices for similar assets and liabilities or inputs other than the quoted prices that are observable either directly or indirectly. The Company classifies its certificates of deposit as having Level 2 inputs. The Company obtains the fair value of Level 2 financial instruments from its bank, which uses pricing data which may include quoted market prices for identical or comparable instruments, or inputs other than quoted prices that are observable either directly or indirectly. The bank then analyzes gathered pricing inputs and applies proprietary valuation techniques, such as weighted average pricing or pricing models such as discounted cash flow techniques to provide the Company with a fair valuation of each security.
	The fair value of these financial assets was determined using the following inputs for the periods presented:
		December 31, 2013						December 31, 2012
		Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
		(in thousands)
	Money market funds	$	121,466	$	—	$	—	$	42,446	$	—	$	—
	Certificates of deposit		—		3,219				—		25
	Total	$	121,466	$	3,219	$	—	$	42,446	$	25	$	—

Balance_Sheet_Components

Balance Sheet Components	12 Months Ended
	Dec. 31, 2013
Balance Sheet Components	'
Balance Sheet Components	'
	4. Balance Sheet Components
	Cash and Cash Equivalents
	Cash and cash equivalents consist of the following:
		December 31,
		2013			2012
		(in thousands)
	Cash	$	3,614		$	1,776
	Cash equivalents
	Money market funds		121,466			42,446
	Certificates of deposit		3,219			25
			124,685			42,471
	Total	$	128,299		$	44,247
	Property and Equipment, Net
	Property and equipment, net consists of the following:
		December 31,
		2013			2012
		(in thousands)
	Computer equipment	$	12,919		$	4,385
	Software		2,314			788
	Office furniture		1,318			803
	Leasehold improvements		2,993			986
	Construction in progress		51			542
	Total property and equipment		19,595			7,504
	Less accumulated depreciation		(5,739	)		(1,887	)
	Property and equipment, net	$	13,856		$	5,617
	Accrued Expenses and Other Current Liabilities
	Accrued expenses and other current liabilities are as follows:
		December 31,
		2013			2012
		(in thousands)
	Accrued bonuses, commissions and wages	$	12,321		$	4,737
	Accrued ESPP		3,278			—
	Accrued vacation		2,202			1,502
	Accrued marketing expenses		1,062			395
	Accrued legal, consulting and audit fees		672			282
	Accrued employee expense reimbursement		643			145
	Accrued sales and other taxes		638			543
	Liability payable for unvested stock options exercises		552			523
	Accrued sales awards		320			180
	Accrued other		1,367			638
	Total	$	23,055		$	8,945
	Changes in Accumulated Other Comprehensive Income
	Changes in accumulated other comprehensive income are as follows:
		Foreign			Total
		Currency
		Items
		(in thousands)
	Beginning balance at January 1, 2013	$	145		$	145
	Other comprehensive income before reclassfications		53			53
	Amounts reclassified from accumulated other comprehensive income		—			—
	Ending balance at December 31, 2013	$	198		$	198

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets	'
Goodwill and Intangible Assets	'
	5. Goodwill and Intangible Assets
	Goodwill and intangible assets consisted of the following for the periods presented below:
		December 31,			Weighted		December 31,			Weighted
		2013			Average		2012			Average
		(in thousands)			Remaining		(in thousands)			Remaining
					Useful Life					Useful Life
					(in years)					(in years)
	Developed technology	$	4,950			3.9	$	1,300			4.8
	Domain names		950			4.5		700			6.3
	Customer relationships		1,600			4.9		900			7.8
	Non-compete agreements		130			0.3		130			1.3
	Capitalized software development costs		1,355			1.3		877			0.8
			8,985					3,907
	Less accumulated amortization		(1,890	)				(1,173	)
	Intangible assets, net		7,095					2,734
	Goodwill		25,941					9,537
	Goodwill and intangible assets, net	$	33,036				$	12,271
	The Company capitalized approximately $478,000 and $0 of software development costs in 2013 and 2012, respectively.
	Amortization expense for the periods presented below was as follows:
		Years Ended December 31,
		2013			2012		2011
		(in thousands)
	Amortization expense	$	717		$	540		181
	Based on the carrying amount of intangible assets as of December 31, 2013, the estimated future amortization is as follows (in thousands):
		Years Ended December 31,
		2014			2015		2016			2017		2018		Thereafter		Total
	Developed Technology	$	1,141		$	1,141	$	1,141		$	1,056	$	—	$	—	$	4,479
	Domain Names		183			183		180			100		100		30		776
	Customer Relationships		339			339		330			106		106		189		1,409
	Non-compete Agreements		19			—		—			—		—		—		19
	Capitalized Software Development Costs		287			125		—			—		—		—		412
	Total	$	1,969		$	1,788	$	1,651		$	1,262	$	206	$	219	$	7,095

Credit_Facility

Credit Facility	12 Months Ended
	Dec. 31, 2013
Credit Facility	'
Credit Facility	'
	6. Credit Facility
	On May 21, 2012, the Company entered into a loan and security agreement with a bank related to an equipment facility providing the Company with an equipment line of up to $4.0 million (Original Line of Credit). On June 6, 2013, the Company entered into a first amendment to the loan and security agreement, which provided an additional line of credit for advances of up to an aggregate of $4.5 million (New Line of Credit). The interest rate associated with the Original Line of Credit and New Line of Credit is the greater of 4% or 0.75 of a percentage point above the prime rate, as determined on the applicable funding date. For each equipment advance, the Company will pay interest only for approximately nine months. Subsequently, the Company will make thirty-six equal monthly payments of principal and interest. The loan is secured by a security interest on substantially all of the Company's assets, including the equipment purchased with the advances, and excludes the Company's intellectual property. The loan and security agreement contains customary affirmative and negative covenants, including, among other things, maintaining certain business performance levels and limitations on disposal of assets, certain fundamental business changes, incurrences of debt, incurrences of liens, payments of dividends, repurchases of stock and engaging in affiliate transactions, in each case subject to certain exceptions. The loan and security agreement also contains customary events of default including, among other things, that during the existence of an event of default, interest on the obligations could be increased by 5%. As of December 31, 2013, the Company was in compliance with certain covenants and subsequently received a waiver for the remaining covenant. As of December 31, 2013, the outstanding loan balance was $7.6 million.
	Contractual future repayments in relation to the above credit facility are as follows for the years ending December 31:
		Principal		Interest		Total
		(in thousands)
	2014	$	2,187	$	272	$	2,459
	2015		2,719		168		2,887
	2016		2,174		62		2,236
	2017		479		4		483
	Total	$	7,559	$	506	$	8,065

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies.	'
Commitments and Contingencies	'
	7. Commitments and Contingencies
	Leases
	The Company leases its office facilities in San Mateo, California, Portland, Oregon, Dublin, Ireland, Sydney, Australia, and Israel under operating lease agreements expiring in 2018. Under terms of the leases, the Company is responsible for certain insurance, property taxes, and maintenance expenses. Rent expense for non-cancellable operating leases with scheduled rent increases is recognized on a straight line basis over the terms of the leases. The difference between required lease payments and rent expense has been recorded as deferred rent. Deferred rent as of December 31, 2013 and 2012 of $1,551,000 and $148,000, respectively, are all long-term.
	Rent expense under these operating leases was approximately $2,724,000, $1,488,000 and $798,000 for the years ended December 31, 2013, 2012 and 2011, respectively.
	As of December 31, 2013, the Company had no capital leases. As of December 31, 2013, future minimum operating lease payments are as follows for the year ending December 31 (in thousands):
	2014	$	3,340
	2015		3,466
	2016		2,456
	2017		261
	2018 and Thereafter		200
	Total	$	9,723
	Contractual Obligations and Commitments
	Contractual agreements with third parties consist of co-location hosting services, software licenses, maintenance and support for our operations. As of December 31, 2013, future payments for non-cancellable contractual agreements are $3.4 million and $1.2 million in 2014 and 2015, respectively.
	Legal Proceedings
	On May 17, 2013, iHance, Inc. filed a complaint against the Company in the United States District Court for the Northern District of California, alleging that a salesperson email tracking feature in the Marketo Sales Insight application infringed upon certain of iHance's patents. On November 25, 2013, the Company entered into a confidential Settlement Agreement with iHance pursuant to which it agreed to pay $950,000 to iHance in exchange for iHance's release of all claims against the Company arising prior to November 25, 2013 and iHance's covenant not to sue the Company alleging that the Marketo Sales Insight application infringes upon the patents that were the subject of the complaint. On November 27, 2013, iHance's claim against the Company was dismissed with prejudice by the United States District Court, Northern District of California.
	From time to time the Company may become involved in legal proceedings or be subject to claims arising in the ordinary course of business. Although the results of litigation and claims cannot be predicted with certainty, the Company currently believes that the final outcome of these ordinary course matters will not have a material adverse effect on the Company's business, operating results, financial condition or cash flows. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors.

Stockholders_Equity_and_Stock_

Stockholder's Equity and Stock Based Compensation	12 Months Ended
	Dec. 31, 2013
Stockholder's Equity and Stock Based Compensation	'
Stockholder's Equity and Stock Based Compensation	'
	8. Stockholder's Equity and Stock Based Compensation
	Convertible Preferred Stock
	Upon the closing of the IPO on May 17, 2013, all outstanding convertible preferred stock was converted into 25,876,142 shares of common stock on a one-to-one basis. No remaining convertible preferred stock was outstanding as of December 31, 2013.
	The following table summarizes convertible preferred stock authorized and issued and outstanding as of December 31, 2012:
		Shares			Shares			Net		Aggregate
		Authorized			Issued and			Proceeds		Liquidation
					Outstanding					Preference
								(in thousands)
	Series A		10,970,000			5,485,000		$	5,487	$	5,485
	Series B		14,492,754			7,246,376			9,946		10,000
	Series C		5,296,950			2,648,474			6,543		6,600
	Series D		4,220,603			2,110,300			9,971		10,000
	Series E		7,511,318			3,755,658			24,940		25,000
	Series F		7,575,758			3,787,876			49,934		50,000
	Series G		1,684,930			842,458			—		12,300
	Total		51,752,313			25,876,142		$	106,821	$	119,385
	No cash proceeds were received from the issuance of 842,458 shares of the Company's Series G as such shares with aggregate value of approximately $12.3 million were issued in connection with the acquisition of Crowd Factory.
	The rights, preference and privileges of the convertible preferred stock were as follows:
	Dividends
	The holders of the Series A, B, C, D, E, F and G convertible preferred stock were entitled to receive noncumulative dividends at the rate of $0.08, $0.12, $0.20, $0.379, $0.5326, $1.056 and $1.168 per share, per annum, respectively, when and if declared by the board of directors, prior and in preference to dividends on common stock. The holders of the Series A, B, C, D, E, F and G convertible preferred stock were also entitled to participate in dividends on common stock held on an as-if converted basis. No dividends on convertible preferred stock or common stock have been declared by the board of directors as of December 31, 2012.
	Liquidation Preferences
	Prior to the IPO, in the event of a liquidation or sale of the Company, either voluntary or involuntary, the holders of the Series A, B, C, D, E, F and G convertible preferred stock would have been entitled to receive, prior and in preference to any distribution to the holders of common stock, $1.00, $1.38, $2.492, $4.73866, $6.65662, $13.20 and $14.60 per share, respectively, plus all declared and unpaid dividends. If the assets legally available were insufficient to satisfy the entire liquidation preference of all series of convertible preferred stock, the funds would have been distributed ratably to the holders of Series A, B, C, D, E, F and G convertible preferred stock. Any remaining assets beyond those needed to satisfy the liquidation preferences described above would have been distributed pro rata among the holders of Marketo common stock and preferred stock (other than Series G preferred stock), assuming full conversion of such preferred stock into Marketo common stock, up to the applicable Participation Cap for holders of Marketo preferred stock. The "Participation Cap" was $3.00 for the Series A preferred stock, $4.14 for Series B preferred stock, $7.476 for Series C Preferred Stock, $14.21598 for Series D preferred stock, $19.96986 for Series E preferred stock and $39.60 for Series F preferred stock (each as adjusted for any stock splits, stock dividends, combinations, subdivisions, recapitalizations or the like). The holders of Series G preferred stock (the preferred stock issued to holders of Company preferred stock in connection with the Crowd Factory acquisition) did not have any liquidation preference participation rights. If there were assets available for distribution, after the applicable Participation Cap had been met for each relevant series of Marketo preferred stock, such assets would have been distributed on a pro rata basis to the holders of Marketo common stock.
	Conversion Rights
	Prior to the IPO, each share of Series A, B, C, D, E, F and G convertible preferred stock was convertible at the option of the holder into shares of common stock at any time. The conversion rate for the Series A, B, C, D, E, F and G convertible preferred stock was equal to the quotient obtained by dividing the applicable original issue price by the applicable conversion price in effect at the time of conversion. The issue price for the Series A, B, C, D, E, F and G convertible preferred stock was $1.00, $1.38, $2.492, $4.73866, $6.65662, $13.20 and $14.60 per share, respectively, as adjusted for stock splits, stock dividends, combinations, subdivisions, recapitalizations or similar transactions. The conversion price of the Series A, B, C, D, E, F and G convertible preferred stock was equal to the applicable original issue price as adjusted for certain dilutive issuances, splits and combinations.
	Each share of Series A, B, C, D, E, F and G convertible preferred stock automatically converted into shares of common stock at the then-effective conversion rate upon the Company's IPO.
	Voting Rights
	Holders of shares of Series A, B, C, D, E, F and G convertible preferred stock had voting rights equal to the number of shares of common stock into which their respective preferred shares were then convertible.
	Stock Option Plans
	2006 Plan
	The Company's Board of Directors (Board) and the Company's stockholders adopted the 2006 Stock Plan (2006 Plan) in October 2006. The 2006 Plan was most recently amended in May 2013. The 2006 Plan was terminated in connection with the IPO, and accordingly, no shares will be available for issuance under this plan. The 2006 Plan will continue to govern outstanding awards granted thereunder. The 2006 Plan provided for the grant of incentive stock options and nonqualified stock options. As of December 31, 2013, options to purchase 6,217,668 shares of common stock and 163,860 restricted stock units remained outstanding under the 2006 Plan.
	2013 Equity Incentive Plan
	The Board adopted, and the Company's stockholders approved, a 2013 Equity Incentive Plan (2013 Plan). The 2013 Plan was effective May 16, 2013. The 2013 Plan provides for the grant of incentive stock options, to the Company's employees and any parent and subsidiary corporations' employees, and for the grant of nonstatutory stock options, restricted stock, restricted stock units, stock appreciation rights, performance units and performance shares to the Company's employees, directors and consultants and the Company's subsidiary corporations' employees and consultants. In addition, the shares reserved for issuance under the 2013 Plan also include (a) those shares reserved but unissued under the 2006 Stock Plan (2006 Plan), and (b) shares returned to the 2006 Plan as the result of expiration or termination of awards (provided that the maximum number of shares that may be added to the 2013 Plan pursuant to (a) and (b) is 9,119,341 shares). The number of shares available for issuance under the 2013 Plan will also include an annual increase on the first day of each fiscal year beginning in 2014, equal to the least of:
	•
	3,250,000 shares;
	•
	5% of the outstanding shares of common stock as of the last day of the Company's immediately preceding fiscal year; or
	•
	such other amount as the Company's Board of Directors may determine.
	If an award expires or becomes unexercisable without having been exercised in full, is surrendered pursuant to an exchange program, or, with respect to restricted stock, restricted stock units, performance units or performance shares, is forfeited to or repurchased due to failure to vest, the unpurchased shares (or for awards other than stock options or stock appreciation rights, the forfeited or repurchased shares) will become available for future grant or sale under the 2013 Plan. With respect to stock appreciation rights, the net shares issued will cease to be available under the 2013 Plan and all remaining shares will remain available for future grant or sale under the 2013 Plan. Shares used to pay the exercise price of an award or satisfy the tax withholding obligations related to an award will become available for future grant or sale under the 2013 Plan. To the extent an award is paid out in cash rather than shares, such cash payment will not result in reducing the number of shares available for issuance under the 2013 Plan. Options under the 2013 Plan may be exercised for periods of up to ten years from the grant date.
	Summary of Stock Option Activity
	A summary of the Company's stock option activity for all stock option plans for fiscal 2013 is as follows:
		OPTIONS OUTSTANDING
		Shares			Number of			Weighted-		Weighted-		Aggregate
		Available			Stock			Average		Average		Intrinsic
		for Grant			Options			Exercise		Remaining		Value
		(in thousands)			Outstanding			Price		Contractual		(in thousands)
					(in thousands)					Life
										(in years)
	Balance as of December 31, 2012		928			6,581		$	3.21		8.08	$	11,431
	Additional shares authorized		4,502
	Granted		(2,225	)		2,225			9.44
	Exercised		—			(1,778	)		2.8
	Repurchased		18			—			8.34
	RSUs granted, net of cancellations/forfeitures		(422	)		—
	Options Cancelled/Forfeited		685			(685	)		4.83
	Balance as of December 31, 2013		3,486			6,343			5.33		7.98	$	201,305
	Exercisable as of December 31, 2013					5,994		$	4.86		8.09	$	193,064
	Vested and expected to vest as of December 31, 2013					6,227		$	5.35		7.97	$	197,535
	The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the Company's closing price of $37.07 as of December 31, 2013 for options that were in-the-money as of that date.
	Option awards generally vest over a four year period, with 25% vesting after one year from date of grant and monthly thereafter. Stock options granted under our 2006 Plan provided employee option holders with an early exercise provision, where in the event of termination any unvested shares purchased are subject to repurchase by the Company at the original purchase price. This right of repurchase lapses as the option vests. Options exercisable as of December 31, 2013 include options that are exercisable prior to vesting.
	The weighted average grant date fair value of options granted and the total intrinsic value of options exercised during the periods presented were as follows (in thousands, except weighted average grant date fair value):
		Years ended December 31,
		2013			2012			2011
Weighted average grant date fair value	$	5.08		$	2.69		$	1.77
Total intrinsic value of options exercised	$	38,241		$	948		$	567
The total estimated grant date fair value of options vested during the years ended December 31, 2013, 2012 and 2011 was $4,190,000, $3,122,000 and $740,000, respectively.
Additional information regarding options outstanding as of December 31, 2013 is as follows:
	Range of						Shares		Weighted		Weighted		Shares		Weighted
	Exercise Prices						Outstanding		Average		Average		Exercisable		Average
							(in thousands)		Remaining		Exercise		(in thousands)		Exercise
									Contractual		Price				Price
									Term
									(in years)
	$	0.12		$	1.5			808		6.01	$	1.07		773	$	1.11
		2.38			2.38			970		7.22		2.38		970		2.38
		2.74			4.24			714		7.75		3.7		667		3.66
		4.56			4.56			1,182		7.99		4.56		1,040		4.56
		4.74			5.44			606		8.48		4.79		606		4.79
		7.42			7.42			1,608		8.91		7.42		1,608		7.42
		9.24			12			329		9.31		11.98		329		11.98
		17.66			17.66			19		9.46		17.66		—		—
		32.65			32.65			22		9.79		32.65		—		—
		32.99			32.99			85		9.87		32.99		—		—
		0.12			32.99			6,343		7.98		5.33		5,994		4.86
Determining Fair Value of Stock Options
The fair value of each option grant is estimated on the date of grant using the Black-Scholes option valuation model. The following assumptions were used to estimate the fair value of options granted to employees:
	Year Ended December 31,
	2013		2012			2011
Expected term (in years)	6			6			6
Risk-free interest rate	0.86% - 1.78%			1.02	%		2.14	%
Expected volatility	57% - 58%			65	%		84	%
Expected dividend rate	0%			0	%		0	%
The assumptions are based on the following for each of the periods presented:
Expected Term—The Company estimates the expected term consistent with the simplified method identified by the SEC. The Company elected to use the simplified method because of its limited history of stock option exercise activity and its stock options meet the criteria of the "plain-vanilla" options as defined by the SEC. The simplified method calculates the expected term as the average of the vesting and contractual terms of the award.
Volatility—Since the Company has limited trading history by which to determine the volatility of its own common stock price, the expected volatility being used is derived from the historical stock volatilities of a representative industry peer group of comparable publicly listed companies over a period approximately equal to the expected term of the options.
Risk Free Interest Rate—The risk free interest rate is based on U.S. Treasury zero coupon issues with remaining terms similar to the expected term on the options.
Expected Dividend—The Company has never declared or paid any cash dividends and does not plan to pay cash dividends in the foreseeable future, and, therefore, used an expected dividend yield of zero in the valuation model.
Forfeiture—The Company estimates forfeitures at the time of grant and revises those estimates in subsequent periods if actual forfeitures differ from those estimates. The Company uses historical data to estimate pre-vesting forfeitures and records stock-based compensation expense only for those awards that are expected to vest. All service based stock-based payment awards are amortized on a straight-line basis over the requisite service periods of the awards, which are generally the vesting periods.
Restricted Stock Units
A summary of the Company's RSU activity and related information for fiscal 2013 is as follows:
	Number of			Weighted			Aggregate
	RSUs			Average			Intrinsic
	(in thousands)			Grant Date			Value
				Fair Value			(in thousands)
Balance as of December 31, 2012		328		$	4.58		$	2,437
RSUs Granted		474			28.69			—
RSUs Vested		(169	)		4.57			—
RSUs Repurchased		—			—			—
RSUs Cancelled/Forfeited		(51	)		23.32			—
Balance as of December 31, 2013		582		$	22.57		$	21,579
The aggregate intrinsic value of RSUs outstanding at December 31, 2013 was determined using the Company's closing stock price of $37.07 per share as of December 31, 2013.
During 2013 and 2012 the Company granted RSUs to certain employees. All RSUs are subject to a time-based vesting condition and some are also subject to performance-based vesting condition, both of which must be satisfied before the RSUs are vested and settled for shares of common stock. The time-based vesting condition generally ranges from 2 to 4 years. The performance-based vesting condition is satisfied upon the occurrence of a sale event or the completion of the Company's IPO. Stock-based compensation expense associated with the performance-based RSUs is recognized if the performance-based vesting condition is considered probable of achievement. Recognition of compensation expense for these performance-based RSUs commenced during the second quarter of 2013 upon the IPO of the Company, which satisfied the performance condition. During fiscal 2013, the Company recognized approximately $1.3 million in stock based compensation associated with these performance-based RSUs.
The weighted average grant date fair value of RSUs granted and the total intrinsic value of RSUs that vested during the periods presented were as follows (in thousands, except weighted average grant date fair value):
	Years ended
	December 31,
	2013			2012			2011
Weighted average grant date fair value	$	28.69		$	4.58		$	—
Total intrinsic value of vested RSUs	$	2,479		$	—		$	—
The aggregate grant date fair value of RSUs vested during fiscal 2013 was approximately $0.8 million.
Employee Stock Purchase Plan
The Board adopted, and the Company's stockholders approved, a 2013 Employee Stock Purchase Plan (ESPP). The ESPP became effective on May 1, 2013. The ESPP provides for annual increases in the number of shares available for issuance under the ESPP on the first day of each fiscal year beginning in fiscal 2014, equal to the lesser of:
•
1% of the outstanding shares of our common stock on the first day of such fiscal year;
•
650,000 shares; or
•
such other amount as may be determined by our board of directors
The ESPP allows eligible employees to purchase shares of our common stock at a discount through payroll deductions of up to 15% of their eligible compensation, at not less than 85% of the fair market value, as defined in the ESPP, subject to any plan limitations. A participant may purchase a maximum of 1,250 shares during an offering period. The offering period generally start on the first trading day on or after February 15th and August 15th of each year, except that the first offering period commenced on the first trading day following the effective date of the Company's registration statement. At December 31, 2013, 738,032 shares were available for issuance under the ESPP. For fiscal 2013, the Company recorded stock-based compensation expense relating to the ESPP of approximately $0.8 million.
Determining Fair Value of Employee Stock Plan Purchase Rights
The assumptions used to value employee stock purchase rights under the Black-Scholes model during fiscal 2013 are as follows:
Expected term (in months)		9
Risk-free interest rate		0.11	%
Expected volatility		42	%
Expected dividend rate		0	%
Stock Compensation Expense
The stock-based compensation expense included in operating results for the periods presented was allocated as follows (in thousands):
	Year Ended December 31,
	2013								2012						2011
	Options &			RSUs			Total		Options &		RSUs		Total		Options &		RSUs		Total
	ESPP								ESPP						ESPP
Cost of subscription and support		385			111			496		216		—		216		108		—		108
Cost of professional services		562			128			690		169		—		169		49		—		49
Total cost of revenue		947			239			1,186		385		—		385		157		—		157
Research and development		1,192			892			2,084		575		—		575		294		—		294
Sales and marketing		1,500			793			2,293		966		—		966		509		—		509
General and administrative		2,330			182			2,512		1,046		—		1,046		349		—		349
Total operating expenses		5,022			1,867			6,889		2,587		—		2,587		1,152		—		1,152
Total stock-based compensation expense		5,969			2,106			8,075		2,972		—		2,972		1,309		—		1,309
As of December 31, 2013, total unrecognized compensation cost related to unvested awards not yet recognized under all equity compensation plans, adjusted for estimate forfeitures, was as follows:
	December 31, 2013
	Unrecognized			Average
	Expense			Expected
				Recognition
				Period
	(in thousands)			(in years)
Stock options	$	11,417			2.51
Restricted stock units		8,914			2.84
Employee stock purchase plan		166			0.13
Total unrecognized stock-based compensation expense	$	20,497

Net_Loss_per_Share

Net Loss per Share	12 Months Ended
	Dec. 31, 2013
Net Loss per Share	'
Net Loss per Share	'
	9. Net Loss per Share
	Basic net loss per share is computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period, less the weighted-average unvested common stock subject to repurchase or forfeiture as they are not deemed to be issued for accounting purposes. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including preferred stock, stock options, RSUs and employee stock purchase plan, to the extent they are dilutive.
	The following table sets forth the computation of the Company's basic and diluted net loss per share of common stock under the two-class method attributable to common stockholders for the periods presented:
		Year Ended December 31,
		2013			2012			2011
		(in thousands, except per share data)
	Numerator:
	Net loss	$	(47,360	)	$	(34,385	)	$	(22,606	)
	Denominator:
	Weighted-average common shares outstanding		24,881			2,934			2,489
	Less: Weighted-average unvested common shares subject to repurchase or forfeiture and shares held in escrow		(172	)		(128	)		(215	)
	Weighted-average shares used in computing net loss per share of common stock, basic and diluted		24,709			2,806			2,274
	Net loss per share of common stock, basic and diluted	$	(1.92	)	$	(12.26	)	$	(9.94	)
	The Company applied the two-class method to calculate its basic and diluted net loss per share of common stock, as its convertible preferred stock and common stock subject to repurchase are participating securities. The two-class method is an earnings allocation formula that treats a participating security as having rights to earnings that otherwise would have been available to common shareholders. However, the two-class method does not impact the net loss per share of common stock as the Company was in a loss position for each of the periods presented and preferred shareholders and holders of common stock subject to repurchase do not have to participate in losses.
	Additionally, since the Company was in a loss position for each of the periods presented, diluted net loss per share is the same as basic net loss per share for each periods as the inclusion of all potential common shares outstanding would have been anti-dilutive. Potentially dilutive securities that were excluded from the diluted per share calculation because they would have been antidilutive were as follows:
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Convertible preferred stock		—			25,876			25,034
	Stock options to purchase common stock		6,343			6,581			4,587
	Common stock held in escrow		137			12			—
	Common stock subject to repurchase		127			148			227
	Employee Stock Purchase Plan		304			—			—
	Restricted stock units		582			328			—
			7,493			32,946			29,848

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Taxes	'
Income Taxes	'
	10. Income Taxes
	Income Tax Provision:
	Pretax loss was as follows:
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Loss before provision for income taxes:
	Domestic	$	(37,481	)	$	(29,119	)	$	(20,295	)
	Foreign		(9,851	)		(5,247	)		(2,305	)
	Total	$	(47,332	)	$	(34,366	)	$	(22,600	)
	The provision for income taxes consists of the following:
		Year Ended
		December 31,
		2013			2012			2011
		(in thousands)
	Current tax provision:
	Federal	$	—		$	—		$	—
	State		10			3			6
	Foreign		83			16			—
	Total current tax provision		93			19			6
	Deferred tax provision		(65	)		—			—
	Total provision for income taxes	$	28		$	19		$	6
	The items accounting for the difference between income taxes computed at the federal statutory rate and the provision for income taxes consist of the following:
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Federal statutory rate		34	%		34	%		34	%
	Stock-based compensation		-1.59			-1.54			-0.86
	Valuation allowance		-28.31			-26.85			-31.06
	Foreign rate differential		-5			-5.24			-3.47
	Federal research and development credit		1.19			0			1.51
	Other		-0.35			-0.43			-0.15
	Effective income tax rate		-0.06	%		-0.06	%		-0.03	%
	Deferred tax assets and liabilities:
	The components of deferred tax assets and liabilities are as follows:
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Deferred tax assets:
	Accounts receivable principally due to allowance for doubtful accounts	$	92		$	107		$	90
	Compensated absences, principally due to accruals for financial reporting purposes		2,993			1,604			366
	Net operating loss carryforwards		42,704			30,251			16,570
	Federal tax credits		1,766			783			783
	State tax credits		1,166			771			508
	Other deductible temporary differences		964			521			487
	Stock-based compensation		1,508			792			351
	Foreign Credit		25			—			—
	Deferred revenue		—			—			—
	Total deferred tax assets	$	51,218		$	34,829			19,155
	Deferred tax liabilities:
	Capitalized software development		(149	)		(37	)		(98	)
	Acquired intangible assets		(1,979	)		(964	)		—
	Total deferred tax liability		(2,128	)		(1,001	)		(98	)
	Valuation allowance		(49,388	)		(33,828	)		(19,057	)
	Net deferred taxes	$	(298	)	$	—		$	—
	The net valuation allowance increased by $15.6 million and $14.8 million for the years ended December 31, 2013 and 2012, respectively.
	As of December 31, 2013, the Company's deferred tax assets consist primarily of the federal and state net operating loss and research and development credit taxable income, if any, the amount and timing of which are uncertain. In assessing the realizability of deferred tax assets, management determined that it is more likely than not that none of the deferred tax assets will be realized. Therefore, the Company has provided a full valuation allowance against the U.S. federal and state deferred tax assets at December 31, 2013, 2012 and 2011.
	The Company has not provided for withholding taxes on the undistributed earnings of its foreign subsidiaries because the Company intends to reinvest such earnings indefinitely. As of December 31, 2013, the amount of undistributed earnings considered indefinitely reinvested was not material.
	The Company had net operating loss carryforwards as follows:
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Federal	$	130,797		$	73,491		$	41,554
California		102,606			68,906			40,278
Foreign		17,673			6,791			2,111
Total	$	251,076		$	149,188		$	83,943
The federal and state net operating losses include $29.3 million and $8.9 million of excess stock based compensation that will result in increases to additional paid in capital, when realized.
Net operating loss carryforwards are available to offset future federal, California and foreign taxable income. Federal and California net operating loss carryforwards begin to expire in 2026 and 2016, respectively. Foreign net operating loss carryforwards do not expire.
The Company had research and development credit carryforwards as follows:
	Year Ended December 31,
	2013			2012			2011
	(in thousands)
Federal	$	1,766		$	783		$	783
California		1,767			1,169			770
International		25			—			—
Total	$	3,558		$	1,952		$	1,553
Federal and California research and development tax credit carryforwards are available to reduce future regular income taxes. Federal research and development credit carryforwards begin to expire in 2026. California research and development tax credit carryforwards do not expire.
According to the American Taxpayer Relief Act of 2012 signed into law on January 3, 2013, the federal research credit, which was allowed to expire on January 1, 2012, was retroactively extended through 2013. The entire benefit for the retroactive extension (January 1 through December 31, 2012), of approximately $419,000, is reflected in the year ended December 31, 2013.
Federal and California laws impose restrictions on the utilization of net operating loss carryforwards and R&D credit carryforwards in the event of a change in ownership of the Company, which constitutes an "ownership change" as defined by Internal Revenue Code Sections 382 and 383. The Company experienced an ownership change in the past that does not materially impact the availability of its net operating losses and tax credits. The amounts reflected in the above tables reflect reduction of approximately $1.2 million of net operating losses and $8,000 of research and development credits as a result of previous ownership changes that the Company experienced. Nevertheless, should there be an ownership change in the future, the Company's ability to utilize existing carryforwards could be substantially restricted.
The Company files tax returns in the US, certain states, Israel, Ireland and Australia. All of the tax years, from the date of inception, are open for examination.
Uncertain Tax Positions
The Company accounts for uncertainty in income taxes in accordance with ASC 740. Tax positions are evaluated in a two-step process. The Company first determines whether it is more likely than not that a tax position will be sustained upon examination by the tax authority, including resolutions of any related appeals or litigation processes, based on technical merit. If a tax position meets the more-likely-than-not recognition threshold it is then measured to determine the amount of benefit to recognize in the financial statements. The tax position is measured as the largest amount of benefit that is greater than 50% likely of being realized upon ultimate settlement.
The following table summarizes the activity related to unrecognized tax benefits:
	Year Ended
	December 31,
	2013			2012			2011
	(in thousands)
Unrecognized benefit—beginning of period	$	—		$	—		$	—
Gross increases (decreases)—prior period tax positions		—			—			—
Gross increases (decreases)—current period tax positions		472			—			—
Unrecognized benefit—end of period	$	472		$	—		$	—
All of the unrecognized tax benefits as of December 31, 2013 are accounted for as a reduction in the Company's deferred tax assets. Because of the Company's valuation allowance, none of the $472,000 of unrecognized tax benefits would affect the Company's effective tax rate, if recognized.
The Company recognizes interest and penalties related to unrecognized tax benefits as income tax expense. There is no interest or penalties accrued related to unrecognized tax benefits for the 2013, 2012 and 2011 and no liability for accrued interest and penalties related to unrecognized tax benefits as of December 31, 2013.
The Company does not expect any significant change in its unrecognized tax benefits during the next twelve months.

Segment_Information_and_Inform

Segment Information and Information about Geographic Areas	12 Months Ended
	Dec. 31, 2013
Segment Information and Information about Geographic Areas	'
Segment Information and Information about Geographic Areas	'
	11. Segment Information and Information about Geographic Areas
	The accounting principles guiding disclosures about segments of an enterprise and related information establishes standards for the reporting by business enterprises of information about operating segments, products and services, geographic areas, and major customers. The method of determining which information is reported is based on the way that management organizes the operating segments within the Company for making operational decisions and assessments of financial performance. The Company's chief operating decision maker (the CODM) is considered to be the Company's chief executive officer (CEO). The CODM reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance. As such, the Company is determined to be operating in one business segment.
	All of the Company's principal operations and decision-making functions are located in the United States.
	Revenue
	Revenues by geography are based on the shipping address of the customer. The following table presents our revenue by geographic region for the periods presented:
		Year Ended December 31,
		2013		2012		2011
		(in thousands)
	United States	$	82,019	$	50,910	$	28,913
	EMEA		6,989		3,686		1,538
	Other		6,910		3,817		1,941
	Total	$	95,918	$	58,413	$	32,392
	No single customer accounted for more than 10% of our total revenue in 2013, 2012 and 2011. No single customer accounted for more than 10% of accounts receivable as of December 31, 2013 and 2012.
	Long-lived Assets
	The following table sets forth the Company's long-lived assets by geographic areas as of the periods presented:
		Year Ended
		December 31,
		2013		2012
		(in thousands)
	United States	$	13,573	$	5,369
	EMEA		280		248
	Other		3		—
	Total		13,856		5,617

The_Company_and_Summary_of_Sig1

The Company and Summary of Significant Accounting Policies and Estimates (Policies)	12 Months Ended
	Dec. 31, 2013
The Company and Summary of Significant Accounting Policies and Estimates	'
Principles of Consolidation	'
	Principles of Consolidation
	The consolidated financial statements are prepared in accordance with accounting principles generally accepted in the U.S. and include the consolidated accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Such management estimates and assumptions include the estimated selling price for the various elements in our customer contracts, the allowance for doubtful accounts, amounts collectible for sales tax, the fair value of common stock, stock-based compensation expense, useful lives of intangible assets and the valuation of deferred tax assets. Actual results could differ materially from those estimates, and such differences could be material to the financial statements and affect the results of operations reported in future periods.
Foreign Currency Translation	'
	Foreign Currency Translation
	The functional currency of the Company's foreign subsidiaries is their respective local currency. Assets and liabilities denominated in currencies other than the U.S. dollar are translated into U.S. dollars at the exchange rates in effect at the balance sheet dates, with the resulting translation adjustments directly recorded to a separate component of accumulated other comprehensive income. Income and expense accounts are translated at average exchange rates during the year. Foreign currency remeasurement and transaction gains and losses are recorded in other income (expense), net. The Company recognized net foreign currency gains of approximately $0.3 million, $0.1 million and $0.1 million during the years ended December 31, 2013, 2012 and 2011, respectively.
Segments	'
	Segments
	The Company's chief operating decision maker is its Chief Executive Officer (CEO), who reviews financial information presented on a consolidated basis, accompanied by information about revenue by geographic region. Accordingly, the Company has determined that it has a single reportable segment.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	The Company considers all highly liquid investments purchased with original maturity of three months or less to be cash equivalents. Cash equivalents were $124.7 million and $42.5 million as of December 31, 2013 and 2012, respectively, consisting primarily of money market funds.
Allowance for Doubtful Accounts	'
	Allowance for Doubtful Accounts
	Trade accounts receivable are carried at the original invoiced amount less an allowance made for doubtful accounts. The Company maintains an allowance for doubtful accounts based on the probability of future collection. When management becomes aware of circumstances that may decrease the likelihood of collection, it records a specific allowance against amounts due, which reduces the net receivable to the amount that management reasonably believes will be collected. For all other customers, management determines the adequacy of the allowance based on historical loss patterns, the number of days that billings are past due and an evaluation of the potential risk of loss associated with specific accounts. The Company reviews its allowance for doubtful accounts monthly and writes off receivable balances that are deemed to be uncollectible. Increases in the allowance are recorded in general and administrative expense in the period incurred. The Company does not have any off balance sheet credit exposure related to its customers.
	Below is a summary of the changes in allowance for doubtful accounts for the periods presented:
		Balance at		Provision, net		Write-offs			Balance at
		Beginning of		of Recoveries					End of
		Period							Period
		(in thousands)
	Year ended December 31, 2011	$	82	$	321	$	(178	)	$	225
	Year ended December 31, 2012		225		362		(251	)		336
	Year ended December 31, 2013		336		452		(459	)		329
Property and Equipment	'
	Property and Equipment
	Property and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the estimated useful lives of the asset, which is generally two to three years. Amortization of leasehold improvements is computed using the straight-line method over the shorter of the lease term or the estimated useful life of the asset or improvement. Depreciation and amortization begins when the asset is ready for its intended use. Cost of maintenance and repairs that do not improve or extend the lives of the respective assets are expensed as incurred.
Capitalized Software Development Costs	'
	Capitalized Software Development Costs
	Costs incurred to develop the Company's cloud-based platform and applications consist of (a) certain external direct costs of materials and services incurred in developing or obtaining internal-use computer software and (b) payroll and payroll-related costs for employees who are directly associated with, and who devote time to, a given project. These costs generally consist of internal labor during configuration, coding and testing activities. Research and development costs incurred during the preliminary project stage or costs incurred for data conversion activities, training, maintenance and general and administrative or overhead costs are expensed as incurred. Capitalization begins when the preliminary project stage is complete, management with the relevant authority authorizes and commits to the funding of the software project, it is probable the project will be completed, and the software will be used to perform the functions intended and certain functional and quality standards have been met. Capitalized software development costs are amortized on a straight-line basis over the technology's estimated useful life, which is generally three years. Amortization expense during the years ended December 31, 2013, 2012 and 2011 was $166,000, $143,000 and $181,000 respectively.
	Costs incurred during the operating stage of the Company's software applications relating to upgrades and enhancements that resulted in added functionality are not capitalized because such upgrades and enhancements are essentially maintenance and, because upgrades and enhancements are provided frequently, do not have a useful life longer than one year. Costs that cannot be separated between maintenance of, and minor upgrades and enhancements to, internal-use software are expensed as incurred.
Business Combinations	'
	Business Combinations
	When the Company acquires businesses, it allocates the purchase price to tangible assets and liabilities, and identifiable intangible assets acquired. Any residual purchase price is recorded as goodwill. The allocation of the purchase price requires management to make significant estimates in determining the fair values of assets acquired and liabilities assumed, especially with respect to intangible assets. These estimates are based on historical experience and information obtained from the management of the acquired companies. These estimates can include, but are not limited to, the cash flows that an asset is expected to generate in the future, the appropriate weighted-average cost of capital, and the cost savings expected to be derived from acquiring an asset. These estimates are inherently uncertain and unpredictable. In addition, unanticipated events and circumstances may occur which may affect the accuracy or validity of such estimates.
Goodwill and Other Intangible Assets	'
	Goodwill and Other Intangible Assets
	The Company records goodwill when the consideration paid in a purchase acquisition exceeds the fair value of the net tangible assets and the identified intangible assets acquired. Goodwill is not amortized, but rather is tested for impairment. The Company performs testing for impairment of goodwill at the end of each year, or as events occur or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The Company conducts a two-step test for impairment of goodwill. The first step of the test for goodwill impairment compares the fair value of the applicable reporting unit with its carrying value. If the fair value of a reporting unit is less than the reporting unit's carrying value, the Company will perform the second step of the test for impairment of goodwill. During the second step of the test for impairment of goodwill, the Company compares the implied fair value of the reporting unit's goodwill with the carrying value of that goodwill. If the carrying value of the goodwill exceeds the calculated implied fair value, the excess amount will be recognized as an impairment loss. The Company has determined that there is a single reporting unit for the purpose of goodwill impairment tests. Based on the above, the Company determined that its goodwill was not impaired at December 31, 2013.
	Other intangible assets, consisting of capitalized software development costs, developed technology, domain names, customer relationships and non-compete agreements, are stated at cost less accumulated amortization. All other intangible assets have been determined to have definite lives and are amortized on a straight-line basis over their estimated remaining economic lives, ranging from one to eight and one-half years. Amortization expense related to capitalized software development costs and developed technology is included in research and development expense. Amortization expense related to customer relationships and non-compete agreements is included in sales and marketing expense. Amortization expense related to domain names is included in general and administrative expense.
Long-Lived Assets	'
	Long-Lived Assets
	The Company continually monitors events and changes in circumstances that could indicate that carrying amounts of its long-lived assets, including property and equipment and identifiable intangible assets, may not be recoverable. When such events or changes in circumstances occur, the Company assesses the recoverability of long-lived assets by determining whether the carrying value of such assets will be recovered through their undiscounted expected future cash flow. If the future undiscounted cash flow is less than the carrying amount of these assets, the Company recognizes an impairment loss based on the excess of the carrying amount over the fair value of the assets. The Company did not recognize impairment charges on its long-lived assets during any of the periods presented.
Concentration of Credit Risk and Significant Customers	'
	Concentration of Credit Risk and Significant Customers
	The Company's financial instruments that are exposed to concentrations of credit risk consist primarily of cash and cash equivalents and trade accounts receivable. Although the Company deposits its cash with multiple financial institutions, its deposits exceed federally insured limits. The Company generally does not require collateral from its customers and generally requires payment 30 days from the invoice date. The Company's accounts receivable are derived from revenue earned from customers located primarily in North America and Europe. The Company periodically evaluates the collectability of its accounts receivable and provides an allowance for potential credit losses as necessary, based on the age of the receivable and collection experience.
	No single customer accounted for more than 10% of accounts receivable as of December 31, 2013 and 2012. No single customer accounted for 10% or more of total revenue during the years ended December 31, 2013, 2012 or 2011.
Revenue Recognition	'
	Revenue Recognition
	The Company derives its revenue from two sources:
	(1)   Subscription and support revenue.    Subscription and support revenue consists of subscription fees from customers accessing the Company's cloud-based software platform and applications, as well as related customer support services; and
	(2)   Professional services and other revenue.    Professional services and other revenue consists of fees associated with providing expert services that educate and assist the Company's customers on the best use of the Company's solutions as well as assist in the implementation of the Company's solution.
	Revenue recognition commences when all of the following conditions are met:
	•
	Persuasive evidence of an arrangement exists;
	•
	Delivery or performance has occurred;
	•
	Fees are fixed or determinable; and
	•
	Collectability is reasonably assured.
	In the majority of instances, revenue from new customers is generated under sales agreements with multiple elements, comprised of subscription and support fees from customers accessing the Company's cloud-based platform and applications and professional consultation services. The Company evaluates each element in a multiple-element arrangement to determine whether it represents a separate unit of accounting. An element constitutes a separate unit of accounting when the delivered item has stand-alone value and delivery of the undelivered element is probable and within the Company's control. Subscription and support have stand-alone value because they are routinely sold separately by the Company. Most of the professional services have stand-alone value because the Company has sold professional services separately, and there are several third party vendors that routinely provide similar professional services to the Company's customers on a stand-alone basis. Prior to the fourth quarter of 2011, some of the Company's professional services did not have stand-alone value because they were sold together with the subscription and support services. As such revenue was recognized ratably over the related subscription period, not to exceed billings amounts.
	In October 2009, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2009-13, Revenue Recognition (Topic 605): Multiple Deliverable Revenue Arrangements—a consensus of the FASB Emerging Issues Task Force (ASU 2009-13), which amended the previous multiple deliverable arrangements' accounting guidance. ASU 2009-13 amended the accounting standards for multiple-element revenue arrangements to:
	Provide updated guidance on whether multiple deliverables exist, how the elements in an arrangement should be separated, and how the consideration should be allocated;
	Require an entity to allocate revenue in an arrangement using estimated selling prices (ESP) of each element if a vendor does not have vendor specific objective evidence of selling price (VSOE) or third party evidence of selling price (TPE); and
	Eliminate the use of the residual method and require a vendor to allocate revenue using the relative selling price method, which eliminated the requirement to have VSOE of fair value on undelivered elements for revenue recognition.
	The Company adopted this accounting guidance prospectively beginning January 1, 2011, for applicable arrangements entered into or materially modified on or after January 1, 2011 (the beginning of the Company's fiscal year).
	Prior to the adoption of ASU 2009-13, the Company was not able to establish VSOE of fair value for the undelivered elements, which in most instances was subscription and support services. As a result, the Company typically recognized subscription, support and professional services revenue ratably over the subscription and support contract period and presented subscription and support revenue and professional services revenue in the consolidated statements of operations and comprehensive loss based on the respective contractual prices.
	As a result of the adoption of ASU 2009-13, the Company allocates total arrangement fees to each element in a multiple-element arrangement based on the relative selling price hierarchy of each element. The amount of arrangement fee allocated to each element is limited by contingent revenue, if any.
	The relative selling price hierarchy consists of the following: Selling price for a deliverable is based on its 1) VSOE, if available, 2) TPE, if VSOE is not available, or 3) ESP, if neither VSOE nor TPE is available. Because the Company has been unable to establish VSOE or TPE for the elements of its arrangements, the Company establishes the ESP for each element primarily by considering the median of actual sales prices of each type of subscription and support sold and the weighted average of actual sales prices of professional services sold. For subscription and support arrangements, management considered other factors such as database sizes, pricing practices and market considerations.
	Subscription and support revenue is recognized commencing upon delivery of the Company's cloud-based services, which is the date a new subscription is provisioned and made available to a new customer, or new or expanded capabilities are provisioned and added to an existing subscription, provided that all of the other revenue recognition criteria are first met, referred to as the "Commencement Date". Subscription and support revenue is recognized from the Commencement Date ratably thereafter over the remaining contractual term, which is generally three to 36 months. Amounts that have been invoiced are recorded in accounts receivable and in deferred revenue or revenue, depending on whether the revenue recognition criteria have been met.
	Professional services and other have stand-alone value from the related subscription services. The majority of the Company's professional services contracts are offered on a time and material basis. When these services are not combined with subscription and support revenue in a multiple-element arrangement, services revenue is recognized as the services are rendered. In 2011, the Company's professional services also consisted of a small number of fixed price contracts, where revenue is recognized on a proportional performance method, based on input measures, which include making reasonably dependable estimates of the total effort to complete the project. Certain standard and non-standard professional service arrangements include customer acceptance provisions. Services provided under arrangements that include customer acceptance provisions are typically provided on a time and material basis, and the revenue is deferred and recognized upon customer acceptance of the service deliverable.
	The Company's professional services also consist of short-term implementation services, which are offered at a flat fee. The enablement services teams assist customers with standard adoption procedures for the Company's platform. Because such enablement services typically are completed within a short period (usually one to ten days), the Company recognizes revenue from this service upon completion. The implementation services consist of short-term (usually spanning approximately 90 days) "use it or lose it", services to assist customers with standard implementation and to implement the customer's first marketing campaign which are offered at a flat fee. Such flat fees are recognized ratably over the 90 day period.
	Education revenue is recognized after the services are performed.
	The Company's time and material and fixed price professional service contracts are generally delivered within one year from the date of the arrangement.
	At December 31, 2011, the Company's deferred professional services under the previous accounting guidance were not significant.
	Sales and other taxes collected from customers to be remitted to government authorities are excluded from revenue.
Cost of Revenue	'
	Cost of Revenue
	Cost of subscriptions, support, professional services and other revenue are expensed as incurred. Cost of subscription and support revenue primarily consists of expenses related to hosting the Company's service and providing support to the Company's customers. These expenses are comprised of data center operations costs and personnel and related costs directly associated with the Company's cloud infrastructure, customer support and customer success organizations, including salaries, benefits, bonuses and stock-based compensation, as well as allocated overhead. Overhead associated with facilities and depreciation, excluding depreciation related to the Company's data center infrastructure, is allocated to cost of revenue and operating expenses based on headcount. Cost of professional services and other revenue consists primarily of personnel and related costs directly associated with the Company's professional services and training organizations, including salaries, benefits, bonuses and stock-based compensation, the costs of sub-contracted third-party vendors, as well as allocated overhead.
Deferred Revenue	'
	Deferred Revenue
	Deferred revenue consists of billings or payments received in advance of revenue recognition and are recognized as the revenue recognition criteria are met. The Company generally invoices its customers annually or in quarterly installments payable in advance. Accordingly, the deferred revenue balance does not represent the total contract value of annual or multi-year, noncancelable arrangements. The current portion of deferred revenue represents the amount that is expected to be recognized as revenue within one year from the balance sheet date. In all of the years presented, the Company did not have any long-term deferred revenue.
Commissions	'
	Commissions
	Sales and marketing commissions are recognized as an expense generally at the time the customer order is signed. Substantially all of the effort by the sales and marketing organization is expended through the time of closing the sale with limited or no involvement thereafter. Commissions paid are subject to clawback by the Company in the event the customer fails to make payment on the agreement.
Warranties and Indemnification	'
	Warranties and Indemnification
	The Company's cloud-based software platform and applications are typically warranted to perform in a manner consistent with general industry standards that are reasonably applicable and materially in accordance with the Company's on-line help documentation under normal use and circumstances.
	The Company includes service level commitments to its customers warranting certain levels of uptime reliability and performance and permitting those customers to receive credits in the event that the Company fails to meet those levels. To date, the Company has not incurred any material costs as a result of such commitments and has not accrued any liabilities related to such obligations in the accompanying consolidated financial statements.
	The Company's arrangements include provisions indemnifying customers against liabilities if the Company's products infringe a third-party's intellectual property rights. The Company has not incurred any costs as a result of such indemnification and has not accrued any liabilities related to such obligations in the accompanying consolidated financial statements.
	The Company has also agreed to indemnify its directors and executive officers for costs associated with any fees, expenses, judgments, fines and settlement amounts incurred by any of those persons in any action or proceeding to which any of those persons is, or is threatened to be, made a party by reason of the person's service as a director or officer, including any action by the Company, arising out of that person's services as the Company's director or officer or that person's services provided to any other company or enterprise at the Company's request. The Company maintains director and officer insurance coverage that may enable the Company to recover a portion of any future indemnification amounts paid.
Advertising Costs	'
	Advertising Costs
	Advertising costs are expensed as incurred. For the years ended December 31, 2013, 2012 and 2011, advertising expenses were $1.5 million, $1.2 million and $1.0 million, respectively.
Stock-Based Compensation	'
	Stock-Based Compensation
	The Company uses the fair value method for recording stock-based compensation. Stock-based compensation cost for stock options is estimated at the grant date based on each option's fair-value as calculated by the Black-Scholes option-pricing model. The Company recognizes compensation cost for stock option grants on a straight-line basis over the requisite service period for the entire award.
	Stock-based compensation cost for restricted stock units (RSUs) is measured based on the fair value of the underlying shares on the date of grant. All RSUs are subject to a time-based vesting condition and some were also subject to a performance-based vesting condition, both of which must be satisfied before the RSUs are vested and settled for shares of common stock. The time-based vesting condition generally ranges from 2 to 4 years. The performance-based vesting condition was satisfied upon the occurrence of the Company's initial public offering. For the awards which were also subject to a performance-based vesting condition, no expense was recognized until the performance condition was satisfied. With respect to those performance-based RSUs which met the time-based vesting condition, those RSUS did not cancel when service to the Company was terminated; however, those shares did not vest until the performance-based vesting condition was met. RSUs that had not satisfied the time-based vesting condition as of termination of employment were automatically forfeited. All RSUs will expire 7 years from the grant date if not previously settled for shares of common stock.
Income Taxes	'
	Income Taxes
	The provision for income taxes is computed using the asset and liability method, under which deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities, and for operating losses and tax credit carryforwards. Deferred tax assets and liabilities are measured using the currently enacted tax rates that apply to taxable income in effect for the years in which those tax assets are expected to be realized or settled. The Company records a valuation allowance to reduce deferred tax assets to the amount that is believed more likely than not to be realized.
	Compliance with income tax regulations requires the Company to make decisions relating to the transfer pricing of revenue and expenses between each of its legal entities that are located in several countries. The Company's determinations include many decisions based on management's knowledge of the underlying assets of the business, the legal ownership of these assets, and the ultimate transactions conducted with customers and other third parties. The calculation of the Company's tax liabilities involves dealing with uncertainties in the application of complex tax regulations in multiple tax jurisdictions. The Company may be periodically reviewed by domestic and foreign tax authorities regarding the amount of taxes due. These reviews may include questions regarding the timing and amount of deductions and the allocation of income among various tax jurisdictions. In evaluating the exposure associated with various filing positions, the Company records estimated reserves when it is more likely than not that an uncertain tax position will not be sustained upon examination by a taxing authority. Such estimates are subject to change. See Note 10, "Income Taxes".
Net Loss per Share Attributable to Common Stockholders	'
	Net Loss per Share Attributable to Common Stockholders
	Basic and diluted net loss per share of common stock is presented in conformity with the two-class method required for participating securities. Holders of Series A, B, C, D, E, F and G convertible preferred stock were each entitled to receive noncumulative dividends out of any funds legally available, when, as and if declared by the board of directors, payable prior and in preference to any dividends on any shares of the Company's common stock. The dividend rates for Series A, B, C, D, E, F and G convertible preferred stock were $0.08, $0.12, $0.20, $0.379, $0.5326, $1.056, and $1.168 per share, respectively. In the event a dividend is paid to common stockholders, the holders of the Series A, B, C, D, E, F and G convertible preferred stock were entitled to a proportionate share of any such dividends as if they were holders of common stock (on an as-if converted basis).
	Under the two-class method, net income (loss) attributable to common stockholders is determined by allocating undistributed earnings, calculated as net income less current period convertible preferred stock non-cumulative dividends, between common stock and preferred stock. In computing diluted net income (loss) attributable to common stockholders, undistributed earnings are re-allocated to reflect the potential impact of dilutive securities. Basic net income (loss) per share of common stock is computed by dividing the net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding during the period. Unvested common shares resulting from the early exercises of stock options are excluded from the calculation of the weighted average common shares until they vest as they are subject to repurchase until they are vested. Those shares are added to the calculation of the weighted average common shares outstanding as they vest. Diluted net income per share attributable to common stockholders is computed by dividing 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 potential common shares for the period determined using the treasury stock method. For purposes of this calculation, convertible preferred stock, options to purchase common stock and restricted stock units are considered to be potential dilutive common shares, but have been excluded from the calculation of diluted net loss per share of common stock as their effect is antidilutive for all periods presented. Holders of convertible preferred stock and holders of stock subject to repurchase did not have a contractual obligation to share in the losses of the Company.
	Given the Company is in a loss position for all periods presented, the Company has not allocated losses to any series of convertible preferred stock.
Recently Issued Accounting Pronouncements	'
	Recently Issued Accounting Pronouncements
	In February 2013, the FASB issued Accounting Standards Update (ASU) No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. The amendments require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. This new accounting pronouncement is effective for interim and fiscal reporting periods beginning after December 15, 2012, with early adoption permitted. The Company adopted this standard during the first quarter of 2013. The adoption of this standard expanded the consolidated financial statement footnote disclosures, however there were no amounts reclassified out of accumulated other comprehensive income in any period presented.
	In July 2013, the FASB issued ASU No. 2013-11, Income Taxes (Topic 740)—Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This amendment clarifies the guidance on the presentation of an unrecognized tax benefit, or a portion of an unrecognized tax benefit, in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. The Company does not believe the adoption of this update will have a material impact to the consolidated financial position, results of operations, or cash flows.

The_Company_and_Summary_of_Sig2

The Company and Summary of Significant Accounting Policies and Estimates (Tables)	12 Months Ended
	Dec. 31, 2013
The Company and Summary of Significant Accounting Policies and Estimates	'
Schedule of changes in allowance for doubtful accounts	'
		Balance at		Provision, net		Write-offs			Balance at
		Beginning of		of Recoveries					End of
		Period							Period
		(in thousands)
	Year ended December 31, 2011	$	82	$	321	$	(178	)	$	225
	Year ended December 31, 2012		225		362		(251	)		336
	Year ended December 31, 2013		336		452		(459	)		329

Acquisition_Tables

Acquisition (Tables)	12 Months Ended
	Dec. 31, 2013
Insightera, Ltd.	'
Acquisition	'
Schedule of total purchase price allocated to the net assets acquired based upon fair values	'
		Purchase Price
		Allocation
		(in thousands)
	Tangible assets:
	Cash and cash equivalents	$	3,624
	Accounts receivable		46
	Other current assts		60
	Property and equipment		71
	Other assets		13
	Total tangible assets		3,814
	Liabilities assumed:
	Accounts payable and accrued liabilities		(391	)
	Deferred revenues		(116	)
	Other long-term liabilities		(27	)
	Total liabilities assumed		(534	)
	Deferred tax liability		(374	)
	Intangible assets		4,600
	Goodwill		16,404
	Total preliminary purchase price	$	23,910
Schedule of components of identifiable intangible assets acquired in connection with acquisition	'
		Estimated			Amount
		Useful Life			(in thousands)
		(in years)
	Developed technology		4		$	3,650
	Domain names		3			250
	Customer relationships		3			700
	Total intangible assets				$	4,600
Crowd Factory	'
Acquisition	'
Schedule of total purchase price allocated to the net assets acquired based upon fair values	'
		Esimated		Purchase Price
		Life		Allocation
		(Years)		(in thousands)
	Net tangible assets acquired			$	481
	Intangible assets:
	Developed technology	4.5			1,300
	Domain names	7			700
	Customer relationships	8.5			900
	Non-compete agreements	2			130
	Goodwill				9,537
	Total purchase price			$	13,048

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value of Financial Instruments	'
Schedule of financial assets stated at fair value on a recurring basis	'
		31-Dec-13						31-Dec-12
		Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
		(in thousands)
	Money market funds	$	121,466	$	—	$	—	$	42,446	$	—	$	—
	Certificates of deposit		—		3,219				—		25
	Total	$	121,466	$	3,219	$	—	$	42,446	$	25	$	—

Balance_Sheet_Components_Table

Balance Sheet Components (Tables)	12 Months Ended
	Dec. 31, 2013
Balance Sheet Components	'
Schedule of cash and cash equivalents	'
		December 31,
		2013			2012
		(in thousands)
	Cash	$	3,614		$	1,776
	Cash equivalents
	Money market funds		121,466			42,446
	Certificates of deposit		3,219			25
			124,685			42,471
	Total	$	128,299		$	44,247
Schedule of property and equipment, net	'
		December 31,
		2013			2012
		(in thousands)
	Computer equipment	$	12,919		$	4,385
	Software		2,314			788
	Office furniture		1,318			803
	Leasehold improvements		2,993			986
	Construction in progress		51			542
	Total property and equipment		19,595			7,504
	Less accumulated depreciation		(5,739	)		(1,887	)
	Property and equipment, net	$	13,856		$	5,617
Schedule of accrued expenses and other current liabilities	'
		December 31,
		2013			2012
		(in thousands)
	Accrued bonuses, commissions and wages	$	12,321		$	4,737
	Accrued ESPP		3,278			—
	Accrued vacation		2,202			1,502
	Accrued marketing expenses		1,062			395
	Accrued legal, consulting and audit fees		672			282
	Accrued employee expense reimbursement		643			145
	Accrued sales and other taxes		638			543
	Liability payable for unvested stock options exercises		552			523
	Accrued sales awards		320			180
	Accrued other		1,367			638
	Total	$	23,055		$	8,945
Schedule of changes in accumulated other comprehensive income	'
		Foreign			Total
		Currency
		Items
		(in thousands)
	Beginning balance at January 1, 2013	$	145		$	145
	Other comprehensive income before reclassfications		53			53
	Amounts reclassified from accumulated other comprehensive income		—			—
	Ending balance at December 31, 2013	$	198		$	198

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets	'
Schedule of goodwill and intangible assets	'
		December 31,			Weighted		December 31,			Weighted
		2013			Average		2012			Average
		(in thousands)			Remaining		(in thousands)			Remaining
					Useful Life					Useful Life
					(in years)					(in years)
	Developed technology	$	4,950			3.9	$	1,300			4.8
	Domain names		950			4.5		700			6.3
	Customer relationships		1,600			4.9		900			7.8
	Non-compete agreements		130			0.3		130			1.3
	Capitalized software development costs		1,355			1.3		877			0.8
			8,985					3,907
	Less accumulated amortization		(1,890	)				(1,173	)
	Intangible assets, net		7,095					2,734
	Goodwill		25,941					9,537
	Goodwill and intangible assets, net	$	33,036				$	12,271
Schedule of amortization expense	'
		Years Ended December 31,
		2013			2012		2011
		(in thousands)
	Amortization expense	$	717		$	540		181
Schedule of estimated future amortization based on the carrying amount of intangible assets	'
	Based on the carrying amount of intangible assets as of December 31, 2013, the estimated future amortization is as follows (in thousands):
		Years Ended December 31,
		2014			2015		2016			2017		2018		Thereafter		Total
	Developed Technology	$	1,141		$	1,141	$	1,141		$	1,056	$	—	$	—	$	4,479
	Domain Names		183			183		180			100		100		30		776
	Customer Relationships		339			339		330			106		106		189		1,409
	Non-compete Agreements		19			—		—			—		—		—		19
	Capitalized Software Development Costs		287			125		—			—		—		—		412
	Total	$	1,969		$	1,788	$	1,651		$	1,262	$	206	$	219	$	7,095

Credit_Facility_Tables

Credit Facility (Tables)	12 Months Ended
	Dec. 31, 2013
Line of credit	'
Schedule of contractual future repayments in relation to the outstanding loan balance	'
		Principal		Interest		Total
		(in thousands)
	2014	$	2,187	$	272	$	2,459
	2015		2,719		168		2,887
	2016		2,174		62		2,236
	2017		479		4		483
	Total	$	7,559	$	506	$	8,065

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies.	'
Schedule of future minimum operating lease payments	'
	As of December 31, 2013, future minimum operating lease payments are as follows for the year ending December 31 (in thousands):
	2014	$	3,340
	2015		3,466
	2016		2,456
	2017		261
	2018 and Thereafter		200
	Total	$	9,723

Stockholders_Equity_and_Stock_1

Stockholder's Equity and Stock Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Stockholder's Equity and Stock Based Compensation	'
Summary of convertible preferred stock authorized and issued and outstanding	'
		Shares			Shares			Net		Aggregate
		Authorized			Issued and			Proceeds		Liquidation
					Outstanding					Preference
								(in thousands)
	Series A		10,970,000			5,485,000		$	5,487	$	5,485
	Series B		14,492,754			7,246,376			9,946		10,000
	Series C		5,296,950			2,648,474			6,543		6,600
	Series D		4,220,603			2,110,300			9,971		10,000
	Series E		7,511,318			3,755,658			24,940		25,000
	Series F		7,575,758			3,787,876			49,934		50,000
	Series G		1,684,930			842,458			—		12,300
	Total		51,752,313			25,876,142		$	106,821	$	119,385
Summary of stock option activity	'
		OPTIONS OUTSTANDING
		Shares			Number of			Weighted-		Weighted-		Aggregate
		Available			Stock			Average		Average		Intrinsic
		for Grant			Options			Exercise		Remaining		Value
		(in thousands)			Outstanding			Price		Contractual		(in thousands)
					(in thousands)					Life
										(in years)
	Balance as of December 31, 2012		928			6,581		$	3.21		8.08	$	11,431
	Additional shares authorized		4,502
	Granted		(2,225	)		2,225			9.44
	Exercised		—			(1,778	)		2.8
	Repurchased		18			—			8.34
	RSUs granted, net of cancellations/forfeitures		(422	)		—
	Options Cancelled/Forfeited		685			(685	)		4.83
	Balance as of December 31, 2013		3,486			6,343			5.33		7.98	$	201,305
	Exercisable as of December 31, 2013					5,994		$	4.86		8.09	$	193,064
	Vested and expected to vest as of December 31, 2013					6,227		$	5.35		7.97	$	197,535
Schedule of weighted average grant date fair value of options granted and the total intrinsic value of options exercised	'
	The weighted average grant date fair value of options granted and the total intrinsic value of options exercised during the periods presented were as follows (in thousands, except weighted average grant date fair value):
		Years ended December 31,
		2013			2012			2011
	Weighted average grant date fair value	$	5.08		$	2.69		$	1.77
	Total intrinsic value of options exercised	$	38,241		$	948		$	567
Schedule of information regarding options outstanding	'
		Range of						Shares		Weighted		Weighted		Shares		Weighted
		Exercise Prices						Outstanding		Average		Average		Exercisable		Average
								(in thousands)		Remaining		Exercise		(in thousands)		Exercise
										Contractual		Price				Price
										Term
										(in years)
		$	0.12		$	1.5			808		6.01	$	1.07		773	$	1.11
			2.38			2.38			970		7.22		2.38		970		2.38
			2.74			4.24			714		7.75		3.7		667		3.66
			4.56			4.56			1,182		7.99		4.56		1,040		4.56
			4.74			5.44			606		8.48		4.79		606		4.79
			7.42			7.42			1,608		8.91		7.42		1,608		7.42
			9.24			12			329		9.31		11.98		329		11.98
			17.66			17.66			19		9.46		17.66		—		—
			32.65			32.65			22		9.79		32.65		—		—
			32.99			32.99			85		9.87		32.99		—		—
			0.12			32.99			6,343		7.98		5.33		5,994		4.86
Schedule of assumptions used for estimation of fair value of options granted to employees	'
		Year Ended December 31,
		2013		2012			2011
	Expected term (in years)	6			6			6
	Risk-free interest rate	0.86% - 1.78%			1.02	%		2.14	%
	Expected volatility	57% - 58%			65	%		84	%
	Expected dividend rate	0%			0	%		0	%
Summary of RSU activity	'
		Number of			Weighted			Aggregate
		RSUs			Average			Intrinsic
		(in thousands)			Grant Date			Value
					Fair Value			(in thousands)
	Balance as of December 31, 2012		328		$	4.58		$	2,437
	RSUs Granted		474			28.69			—
	RSUs Vested		(169	)		4.57			—
	RSUs Repurchased		—			—			—
	RSUs Cancelled/Forfeited		(51	)		23.32			—
	Balance as of December 31, 2013		582		$	22.57		$	21,579
Schedule of weighted average grant date fair value of RSU granted and the total fair value	'
	The weighted average grant date fair value of RSUs granted and the total intrinsic value of RSUs that vested during the periods presented were as follows (in thousands, except weighted average grant date fair value):
		Years ended
		December 31,
		2013			2012			2011
	Weighted average grant date fair value	$	28.69		$	4.58		$	—
	Total intrinsic value of vested RSUs	$	2,479		$	—		$	—
Schedule of assumptions used to value employee stock purchase rights under the Black-Scholes model	'
	Expected term (in months)		9
	Risk-free interest rate		0.11	%
	Expected volatility		42	%
	Expected dividend rate		0	%
Schedule of stock-based compensation expense included in operating results	'
	The stock-based compensation expense included in operating results for the periods presented was allocated as follows (in thousands):
		Year Ended December 31,
		2013								2012						2011
		Options &			RSUs			Total		Options &		RSUs		Total		Options &		RSUs		Total
		ESPP								ESPP						ESPP
	Cost of subscription and support		385			111			496		216		—		216		108		—		108
	Cost of professional services		562			128			690		169		—		169		49		—		49
	Total cost of revenue		947			239			1,186		385		—		385		157		—		157
	Research and development		1,192			892			2,084		575		—		575		294		—		294
	Sales and marketing		1,500			793			2,293		966		—		966		509		—		509
	General and administrative		2,330			182			2,512		1,046		—		1,046		349		—		349
	Total operating expenses		5,022			1,867			6,889		2,587		—		2,587		1,152		—		1,152
	Total stock-based compensation expense		5,969			2,106			8,075		2,972		—		2,972		1,309		—		1,309
Schedule of total unrecognized compensation cost related to unvested awards not yet recognized under all equity compensation plans, adjusted for estimate forfeitures	'
		31-Dec-13
		Unrecognized			Average
		Expense			Expected
					Recognition
					Period
		(in thousands)			(in years)
	Stock options	$	11,417			2.51
	Restricted stock units		8,914			2.84
	Employee stock purchase plan		166			0.13
	Total unrecognized stock-based compensation expense	$	20,497

Net_Loss_per_Share_Tables

Net Loss per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Net Loss per Share	'
Schedule of computation of basic and diluted net loss per share of common stock	'
		Year Ended December 31,
		2013			2012			2011
		(in thousands, except per share data)
	Numerator:
	Net loss	$	(47,360	)	$	(34,385	)	$	(22,606	)
	Denominator:
	Weighted-average common shares outstanding		24,881			2,934			2,489
	Less: Weighted-average unvested common shares subject to repurchase or forfeiture and shares held in escrow		(172	)		(128	)		(215	)
	Weighted-average shares used in computing net loss per share of common stock, basic and diluted		24,709			2,806			2,274
	Net loss per share of common stock, basic and diluted	$	(1.92	)	$	(12.26	)	$	(9.94	)
Schedule of potentially dilutive securities excluded from the diluted per share calculation	'
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Convertible preferred stock		—			25,876			25,034
	Stock options to purchase common stock		6,343			6,581			4,587
	Common stock held in escrow		137			12			—
	Common stock subject to repurchase		127			148			227
	Employee Stock Purchase Plan		304			—			—
	Restricted stock units		582			328			—
			7,493			32,946			29,848

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Taxes	'
Schedule of pretax loss	'
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Loss before provision for income taxes:
	Domestic	$	(37,481	)	$	(29,119	)	$	(20,295	)
	Foreign		(9,851	)		(5,247	)		(2,305	)
	Total	$	(47,332	)	$	(34,366	)	$	(22,600	)
Schedule of provision for income taxes	'
		Year Ended
		December 31,
		2013			2012			2011
		(in thousands)
	Current tax provision:
	Federal	$	—		$	—		$	—
	State		10			3			6
	Foreign		83			16			—
	Total current tax provision		93			19			6
	Deferred tax provision		(65	)		—			—
	Total provision for income taxes	$	28		$	19		$	6
Schedule of difference between income taxes computed at the federal statutory rate and the provision for income taxes	'
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Federal statutory rate		34	%		34	%		34	%
	Stock-based compensation		-1.59			-1.54			-0.86
	Valuation allowance		-28.31			-26.85			-31.06
	Foreign rate differential		-5			-5.24			-3.47
	Federal research and development credit		1.19			0			1.51
	Other		-0.35			-0.43			-0.15
	Effective income tax rate		-0.06	%		-0.06	%		-0.03	%
Schedule of components of deferred tax assets and liabilities	'
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Deferred tax assets:
	Accounts receivable principally due to allowance for doubtful accounts	$	92		$	107		$	90
	Compensated absences, principally due to accruals for financial reporting purposes		2,993			1,604			366
	Net operating loss carryforwards		42,704			30,251			16,570
	Federal tax credits		1,766			783			783
	State tax credits		1,166			771			508
	Other deductible temporary differences		964			521			487
	Stock-based compensation		1,508			792			351
	Foreign Credit		25			—			—
	Deferred revenue		—			—			—
	Total deferred tax assets	$	51,218		$	34,829			19,155
	Deferred tax liabilities:
	Capitalized software development		(149	)		(37	)		(98	)
	Acquired intangible assets		(1,979	)		(964	)		—
	Total deferred tax liability		(2,128	)		(1,001	)		(98	)
	Valuation allowance		(49,388	)		(33,828	)		(19,057	)
	Net deferred taxes	$	(298	)	$	—		$	—
Schedule of net operating loss carryforwards	'
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Federal	$	130,797		$	73,491		$	41,554
	California		102,606			68,906			40,278
	Foreign		17,673			6,791			2,111
	Total	$	251,076		$	149,188		$	83,943
Schedule of research and development credit carryforwards	'
		Year Ended December 31,
		2013			2012			2011
		(in thousands)
	Federal	$	1,766		$	783		$	783
	California		1,767			1,169			770
	International		25			—			—
	Total	$	3,558		$	1,952		$	1,553
Schedule of activity related to unrecognized tax benefits	'
		Year Ended
		December 31,
		2013			2012			2011
		(in thousands)
	Unrecognized benefit—beginning of period	$	—		$	—		$	—
	Gross increases (decreases)—prior period tax positions		—			—			—
	Gross increases (decreases)—current period tax positions		472			—			—
	Unrecognized benefit—end of period	$	472		$	—		$	—

Segment_Information_and_Inform1

Segment Information and Information about Geographic Areas (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Information and Information about Geographic Areas	'
Schedule of revenue by geographic region	'
		Year Ended December 31,
		2013		2012		2011
		(in thousands)
	United States	$	82,019	$	50,910	$	28,913
	EMEA		6,989		3,686		1,538
	Other		6,910		3,817		1,941
	Total	$	95,918	$	58,413	$	32,392
Schedule of long-lived assets by geographic areas	'
		Year Ended
		December 31,
		2013		2012
		(in thousands)
	United States	$	13,573	$	5,369
	EMEA		280		248
	Other		3		—
	Total		13,856		5,617

The_Company_and_Summary_of_Sig3

The Company and Summary of Significant Accounting Policies and Estimates (Details) (USD $)	0 Months Ended	12 Months Ended		0 Months Ended
	17-May-13	Dec. 31, 2013	Dec. 31, 2012	17-May-13	17-May-13	Sep. 13, 2013	17-May-13	17-May-13	Sep. 13, 2013	Sep. 13, 2013
				Initial public offering	Underwriters' overallotment option	Selling Stockholders'	Selling Stockholders'	Private Placement	Follow-on offering	Common stock sold by the Company
Initial Public Offering and Follow-On Offering	'	'	'	'	'	'	'	'	'	'
Shares of common stock sold	'	'	'	6,968,435	908,926	5,337,502	309,509	500,000	6,000,000	662,498
Share price (in dollars per share)	'	'	'	$13	$13	'	$13	$13	$35.50	'
Proceeds from common stock sold	'	'	'	'	'	'	'	'	$22,500,000	'
Aggregate proceeds from the IPO and concurrent private placement before deduction of offering expenses	87,000,000	'	'	'	'	'	'	'	'	'
Offering expenses	$3,400,000	$4,079,000	'	'	'	'	'	'	$700,000	'
Number of shares of common stock issued upon automatic conversion of convertible preferred stock	25,876,142	'	'	'	'	'	'	'	'	'
Common stock, shares issued	'	39,250,000	3,195,000	'	'	'	'	'	'	'
Common stock, shares outstanding	'	39,250,000	3,195,000	'	'	'	'	'	'	'

The_Company_and_Summary_of_Sig4

The Company and Summary of Significant Accounting Policies and Estimates (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Foreign Currency Translation	'	'	'
Net foreign currency gains	$300,000	$100,000	$100,000
Cash and Cash Equivalents	'	'	'
Cash equivalents	124,685,000	42,471,000	'
Changes in allowance for doubtful accounts	'	'	'
Balance at Beginning of Period	336,000	225,000	82,000
Provision, net of Recoveries	452,000	362,000	321,000
Write-offs	-459,000	-251,000	-178,000
Balance at End of Period	$329,000	$336,000	$225,000
Minimum	'	'	'
Property and Equipment	'	'	'
Estimated useful lives of the asset	'2 years	'	'
Maximum	'	'	'
Property and Equipment	'	'	'
Estimated useful lives of the asset	'3 years	'	'

The_Company_and_Summary_of_Sig5

The Company and Summary of Significant Accounting Policies and Estimates (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Capitalized Software Development Costs, Goodwill and Other Intangible Assets	'	'	'
Amortization expense	$717,000	$540,000	$181,000
Maximum	'	'	'
Capitalized Software Development Costs, Goodwill and Other Intangible Assets	'	'	'
Estimated useful life of intangible assets	'8 years 6 months	'	'
Estimated useful life of upgrades and enhancements	'1 year	'	'
Minimum	'	'	'
Capitalized Software Development Costs, Goodwill and Other Intangible Assets	'	'	'
Estimated useful life of intangible assets	'1 year	'	'
Capitalized software development costs	'	'	'
Capitalized Software Development Costs, Goodwill and Other Intangible Assets	'	'	'
Estimated useful life of intangible assets	'1 year 3 months 18 days	'9 months 18 days	'
Amortization expense	$166,000	$143,000	$181,000

The_Company_and_Summary_of_Sig6

The Company and Summary of Significant Accounting Policies and Estimates (Details 4)	12 Months Ended
	Dec. 31, 2013
	item
Concentration of Credit Risk and Significant Customers	'
Term of credit from the invoice date	'30 days
Revenue Recognition	'
Number of sources of revenue	2
Subscription and support services | Minimum	'
Revenue Recognition	'
Term over which revenue is recognized	'3 months
Subscription and support services | Maximum	'
Revenue Recognition	'
Term over which revenue is recognized	'36 months
Enablement services | Minimum	'
Revenue Recognition	'
Term of services	'1 day
Enablement services | Maximum	'
Revenue Recognition	'
Term of services	'10 days
Implementation services	'
Revenue Recognition	'
Term over which revenue is recognized	'90 days

The_Company_and_Summary_of_Sig7

The Company and Summary of Significant Accounting Policies and Estimates (Details 5) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Advertising Costs	'	'	'
Advertising expenses	$1.50	$1.20	$1
RSUs	'	'	'
Stock-Based Compensation	'	'	'
Period of time-based vesting	'4 years	'	'
Expiration period from the date of grant	'7 years	'	'
RSUs | Minimum	'	'	'
Stock-Based Compensation	'	'	'
Period of time-based vesting	'2 years	'	'
RSUs | Maximum	'	'	'
Stock-Based Compensation	'	'	'
Period of time-based vesting	'4 years	'	'

The_Company_and_Summary_of_Sig8

The Company and Summary of Significant Accounting Policies and Estimates (Details 6) (Convertible preferred stock, USD $)	12 Months Ended
	Dec. 31, 2013
Series A convertible preferred stock	'
Net Loss per Share Attributable to Common Stockholders	'
Dividend rates per share (in dollars per share)	$0.08
Series B convertible preferred stock	'
Net Loss per Share Attributable to Common Stockholders	'
Dividend rates per share (in dollars per share)	$0.12
Series C convertible preferred stock	'
Net Loss per Share Attributable to Common Stockholders	'
Dividend rates per share (in dollars per share)	$0.20
Series D convertible preferred stock	'
Net Loss per Share Attributable to Common Stockholders	'
Dividend rates per share (in dollars per share)	$0.38
Series E convertible preferred stock	'
Net Loss per Share Attributable to Common Stockholders	'
Dividend rates per share (in dollars per share)	$0.53
Series F convertible preferred stock	'
Net Loss per Share Attributable to Common Stockholders	'
Dividend rates per share (in dollars per share)	$1.06
Series G convertible preferred stock	'
Net Loss per Share Attributable to Common Stockholders	'
Dividend rates per share (in dollars per share)	$1.17

Acquisition_Details

Acquisition (Details) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 19, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 19, 2013

Dec. 19, 2013

Dec. 19, 2013

Jan. 31, 2014

Apr. 17, 2012

Dec. 31, 2013

Dec. 31, 2013

Apr. 17, 2012

Apr. 17, 2012

Apr. 17, 2012

Apr. 17, 2012

Apr. 17, 2012

Apr. 17, 2012

Apr. 17, 2012

Apr. 17, 2012

Minimum

Maximum

Developed technology

Developed technology

Domain names

Domain names

Customer relationships

Customer relationships

Non-compete agreements

Non-compete agreements

Options

RSUs

Insightera, Ltd.

Insightera, Ltd.

Insightera, Ltd.

Insightera, Ltd.

Insightera, Ltd.

Insightera, Ltd.

Insightera, Ltd.

Insightera, Ltd.

Crowd Factory

Crowd Factory

Crowd Factory

Crowd Factory

Crowd Factory

Crowd Factory

Crowd Factory

Crowd Factory

Crowd Factory

Crowd Factory

Crowd Factory

Maximum

Developed technology

Domain names

Customer relationships

RSUs

Minimum

Maximum

Developed technology

Domain names

Customer relationships

Non-compete agreements

RSUs

Common stock

Common stock

Series G

Subsequent Event

Options

Convertible preferred stock

Acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash consideration

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$9,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

427,761

'

'

'

'

'

'

'

'

'

'

'

'

'

'

98,923

'

842,458

Closing stock price (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

$37.07

$37.07

'

$32.89

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares withheld in escrow

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

137,252

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11,872

'

101,095

Transaction costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

700,000

'

700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional costs of registration of common stock issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tangible assets:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash and cash equivalents

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,624,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accounts receivable

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

46,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other current assts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

60,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property and equipment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

71,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

13,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total tangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,814,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liabilities assumed:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accounts payable and accrued liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-391,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred revenues

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-116,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other long-term liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-27,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total liabilities assumed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-534,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred tax liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-374,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill

25,941,000

9,537,000

'

'

'

'

'

'

'

'

'

'

'

'

'

16,404,000

'

'

'

'

'

'

9,537,000

'

'

'

'

'

'

'

'

'

'

Total preliminary purchase price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

23,910,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contribution of acquiree to revenues since closing date of acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contribution of acquiree to net losses since closing date of acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Value of shares issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

453,000

'

12,300,000

Shares withheld in escrow (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12.00%

'

12.00%

Assumption of options to exercise shares, number

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

89,405

'

Assumption of options to exercise shares, value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

295,100

'

Escrow shares withheld, period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'18 months

'

'

'

'

'12 months

'

'

'

'

'

'

'

'

'

'

Total purchase price allocation

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net tangible assets acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

481,000

'

'

'

'

'

'

'

'

'

'

Intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,600,000

'

'

3,650,000

250,000

700,000

'

'

'

'

1,300,000

700,000

900,000

130,000

'

'

'

'

Goodwill

25,941,000

9,537,000

'

'

'

'

'

'

'

'

'

'

'

'

'

16,404,000

'

'

'

'

'

'

9,537,000

'

'

'

'

'

'

'

'

'

'

Total purchase price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

13,048,000

'

'

'

'

'

'

'

'

'

'

Additional disclosures

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change in control bonuses paid to former employees

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

850,000

'

'

'

'

'

'

'

'

'

'

Granted to employees (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

474,000

'

'

'

'

'

'

'

139,464

'

'

'

'

'

'

'

308,218

'

'

'

Value of shares granted to employees

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$6,100,000

'

'

'

'

'

'

'

$1,400,000

'

'

'

Estimated useful life of intangible assets

'

'

'1 year

'8 years 6 months

'3 years 10 months 24 days

'4 years 9 months 18 days

'4 years 6 months

'6 years 3 months 18 days

'4 years 10 months 24 days

'7 years 9 months 18 days

'3 months 18 days

'1 year 3 months 18 days

'

'

'

'

'

'

'4 years

'3 years

'3 years

'

'

'2 years

'8 years 6 months

'4 years 6 months

'7 years

'8 years 6 months

'2 years

'

'

'

'

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments (Details) (Recurring basis, USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Level 1	'	'
Fair Value of Financial Instruments	'	'
Total fair value of financial assets	$121,466	$42,446
Level 1 | Money market funds	'	'
Fair Value of Financial Instruments	'	'
Total fair value of financial assets	121,466	42,446
Level 2	'	'
Fair Value of Financial Instruments	'	'
Total fair value of financial assets	3,219	25
Level 2 | Certificates of deposit	'	'
Fair Value of Financial Instruments	'	'
Total fair value of financial assets	$3,219	$25

Balance_Sheet_Components_Detai

Balance Sheet Components (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Cash and cash equivalents	'	'	'	'
Cash	$3,614	$1,776	'	'
Cash equivalents	'	'	'	'
Money market funds	121,466	42,446	'	'
Certificates of deposit	3,219	25	'	'
Total cash equivalents	124,685	42,471	'	'
Total	128,299	44,247	67,400	34,457
Property and equipment, net	'	'	'	'
Total property and equipment	19,595	7,504	'	'
Less accumulated depreciation	-5,739	-1,887	'	'
Property and equipment, net	13,856	5,617	'	'
Computer equipment	'	'	'	'
Property and equipment, net	'	'	'	'
Total property and equipment	12,919	4,385	'	'
Software	'	'	'	'
Property and equipment, net	'	'	'	'
Total property and equipment	2,314	788	'	'
Office furniture	'	'	'	'
Property and equipment, net	'	'	'	'
Total property and equipment	1,318	803	'	'
Leasehold improvements	'	'	'	'
Property and equipment, net	'	'	'	'
Total property and equipment	2,993	986	'	'
Construction in progress	'	'	'	'
Property and equipment, net	'	'	'	'
Total property and equipment	$51	$542	'	'

Balance_Sheet_Components_Detai1

Balance Sheet Components (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accrued expenses and other current liabilities	'	'
Accrued bonuses, commissions and wages	$12,321	$4,737
Accrued ESPP	3,278	'
Accrued vacation	2,202	1,502
Accrued marketing expenses	1,062	395
Accrued legal, consulting and audit fees	672	282
Accrued employee expense reimbursement	643	145
Accrued sales and other taxes	638	543
Liability payable for unvested stock options exercises	552	523
Accrued sales awards	320	180
Accrued other	1,367	638
Total	23,055	8,945
Changes in accumulated other comprehensive income	'	'
Beginning balance	145	'
Other comprehensive income before reclassifications	53	'
Ending balance	198	'
Foreign Currency Items	'	'
Changes in accumulated other comprehensive income	'	'
Beginning balance	145	'
Other comprehensive income before reclassifications	53	'
Ending balance	$198	'

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill and Intangible Assets	'	'	'
Intangible assets, gross	$8,985,000	$3,907,000	'
Less accumulated amortization	-1,890,000	-1,173,000	'
Net Carrying Amount	7,095,000	2,734,000	'
Goodwill	25,941,000	9,537,000	'
Goodwill and intangible assets, net	33,036,000	12,271,000	'
Amortization expense	717,000	540,000	181,000
Estimated future amortization	'	'	'
2014	1,969,000	'	'
2015	1,788,000	'	'
2016	1,651,000	'	'
2017	1,262,000	'	'
2018	206,000	'	'
Thereafter	219,000	'	'
Net Carrying Amount	7,095,000	2,734,000	'
Developed technology	'	'	'
Goodwill and Intangible Assets	'	'	'
Intangible assets, gross	4,950,000	1,300,000	'
Net Carrying Amount	4,479,000	'	'
Weighted Average Remaining Useful Life	'3 years 10 months 24 days	'4 years 9 months 18 days	'
Estimated future amortization	'	'	'
2014	1,141,000	'	'
2015	1,141,000	'	'
2016	1,141,000	'	'
2017	1,056,000	'	'
Net Carrying Amount	4,479,000	'	'
Domain names	'	'	'
Goodwill and Intangible Assets	'	'	'
Intangible assets, gross	950,000	700,000	'
Net Carrying Amount	776,000	'	'
Weighted Average Remaining Useful Life	'4 years 6 months	'6 years 3 months 18 days	'
Estimated future amortization	'	'	'
2014	183,000	'	'
2015	183,000	'	'
2016	180,000	'	'
2017	100,000	'	'
2018	100,000	'	'
Thereafter	30,000	'	'
Net Carrying Amount	776,000	'	'
Customer Relationships	'	'	'
Goodwill and Intangible Assets	'	'	'
Intangible assets, gross	1,600,000	900,000	'
Net Carrying Amount	1,409,000	'	'
Weighted Average Remaining Useful Life	'4 years 10 months 24 days	'7 years 9 months 18 days	'
Estimated future amortization	'	'	'
2014	339,000	'	'
2015	339,000	'	'
2016	330,000	'	'
2017	106,000	'	'
2018	106,000	'	'
Thereafter	189,000	'	'
Net Carrying Amount	1,409,000	'	'
Non-compete agreements	'	'	'
Goodwill and Intangible Assets	'	'	'
Intangible assets, gross	130,000	130,000	'
Net Carrying Amount	19,000	'	'
Weighted Average Remaining Useful Life	'3 months 18 days	'1 year 3 months 18 days	'
Estimated future amortization	'	'	'
2014	19,000	'	'
Net Carrying Amount	19,000	'	'
Capitalized software development costs	'	'	'
Goodwill and Intangible Assets	'	'	'
Intangible assets, gross	1,355,000	877,000	'
Net Carrying Amount	412,000	'	'
Weighted Average Remaining Useful Life	'1 year 3 months 18 days	'9 months 18 days	'
Software development costs capitalized during period	478,000	0	'
Amortization expense	166,000	143,000	181,000
Estimated future amortization	'	'	'
2014	287,000	'	'
2015	125,000	'	'
Net Carrying Amount	$412,000	'	'

Credit_Facility_Details

Credit Facility (Details) (USD $)	Dec. 31, 2013	21-May-12	Dec. 31, 2013	Jun. 06, 2013
	Equipment facility	Original Line of Credit	Original Line of Credit	New line of credit
			item
Credit facility	'	'	'	'
Maximum borrowing capacity	'	$4,000,000	'	$4,500,000
Minimum interest rate (as a percent)	'	4.00%	'	'
Percentage points above prime rate considered for determining interest rate	'	0.75%	'	'
Interest payment period	'	'	'9 months	'
Number of equal monthly principal and interest payments	'	'	36	'
Percentage of increase in interest rate basis of existence of an event as per loan and security agreement	'	'	5.00%	'
Principal	'	'	'	'
2014	2,187,000	'	'	'
2015	2,719,000	'	'	'
2016	2,174,000	'	'	'
2017	479,000	'	'	'
Total	7,559,000	'	'	'
Interest	'	'	'	'
2014	272,000	'	'	'
2015	168,000	'	'	'
2016	62,000	'	'	'
2017	4,000	'	'	'
Total	506,000	'	'	'
Total	'	'	'	'
2014	2,459,000	'	'	'
2015	2,887,000	'	'	'
2016	2,236,000	'	'	'
2017	483,000	'	'	'
Total	$8,065,000	'	'	'

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	0 Months Ended	12 Months Ended
	Nov. 25, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases	'	'	'	'
Deferred rent	'	$1,551,000	$148,000	'
Rent expense under operating leases	'	2,724,000	1,488,000	798,000
Capital leases	'	0	'	'
Future minimum operating lease payments	'	'	'	'
2014	'	3,340,000	'	'
2015	'	3,466,000	'	'
2016	'	2,456,000	'	'
2017	'	261,000	'	'
2018 and Thereafter	'	200,000	'	'
Total	'	9,723,000	'	'
Future payments for non-cancellable contractual agreements	'	'	'	'
2014	'	3,400,000	'	'
2015	'	1,200,000	'	'
Amount paid to iHance in exchange of release of all claims	$950,000	'	'	'

Stockholders_Equity_and_Stock_2

Stockholder's Equity and Stock Based Compensation (Details) (USD $)

0 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

17-May-13

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

16-May-13

Dec. 31, 2012

Dec. 31, 2013

16-May-13

Dec. 31, 2012

Dec. 31, 2013

16-May-13

Dec. 31, 2012

Dec. 31, 2013

16-May-13

Dec. 31, 2012

Dec. 31, 2013

16-May-13

Dec. 31, 2012

Dec. 31, 2013

16-May-13

Dec. 31, 2012

Dec. 31, 2013

16-May-13

Dec. 31, 2012

Series A

Series A

Series A

Series B

Series B

Series B

Series C

Series C

Series C

Series D

Series D

Series D

Series E

Series E

Series E

Series F

Series F

Series F

Series G

Series G

Series G

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Convertible Preferred Stock

Stockholder's Equity and Stock Based Compensation

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Convertible preferred stock converted into common stock

25,876,142

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Conversion ratio of convertible preferred stock

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Convertible Preferred Stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares Authorized

'

20,000,000

51,752,000

'

'

10,970,000

'

'

14,492,754

'

'

5,296,950

'

'

4,220,603

'

'

7,511,318

'

'

7,575,758

'

'

1,684,930

Shares Issued

'

0

25,876,000

'

'

5,485,000

'

'

7,246,376

'

'

2,648,474

'

'

2,110,300

'

'

3,755,658

'

'

3,787,876

'

'

842,458

Shares Outstanding

'

0

25,876,000

0

'

5,485,000

0

'

7,246,376

0

'

2,648,474

0

'

2,110,300

0

'

3,755,658

0

'

3,787,876

0

'

842,458

Net Proceeds

'

'

$106,821,000

'

'

$5,487,000

'

'

$9,946,000

'

'

$6,543,000

'

'

$9,971,000

'

'

$24,940,000

'

'

$49,934,000

'

'

$0

Aggregate Liquidation Preference

'

$0

$119,385,000

'

'

$5,485,000

'

'

$10,000,000

'

'

$6,600,000

'

'

$10,000,000

'

'

$25,000,000

'

'

$50,000,000

'

'

$12,300,000

Dividends

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Noncumulative dividend rates per share, per annum (in dollars per share)

'

'

'

$0.08

'

'

$0.12

'

'

$0.20

'

'

$0.38

'

'

$0.53

'

'

$1.06

'

'

$1.17

'

'

Preference stock dividend declared (in dollars per share)

'

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

Common stock dividend declared (in dollars per share)

'

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

Convertible preferred stock, shares outstanding

'

0

25,876,000

0

'

5,485,000

0

'

7,246,376

0

'

2,648,474

0

'

2,110,300

0

'

3,755,658

0

'

3,787,876

0

'

842,458

Liquidation Preferences

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liquidation preferences (in dollars per share)

'

'

'

'

$1

'

'

$1.38

'

'

$2.49

'

'

$4.74

'

'

$6.66

'

'

$13.20

'

'

$14.60

'

Participation cap (in dollars per share)

'

'

'

'

$3

'

'

$4.14

'

'

$7.48

'

'

$14.22

'

'

$19.97

'

'

$39.60

'

'

'

'

Conversion Rights

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Issue price of share (in dollars per share)

'

'

'

'

$1

'

'

$1.38

'

'

$2.49

'

'

$4.74

'

'

$6.66

'

'

$13.20

'

'

$14.60

'

Stockholders_Equity_and_Stock_3

Stockholder's Equity and Stock Based Compensation (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Additional information	'	'	'
Total stock-based compensation expense	$8,075,000	$2,972,000	$1,309,000
RSUs	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Restricted stock units outstanding (in shares)	582,000	328,000	'
Vesting period	'4 years	'	'
Aggregate Intrinsic Value	'	'	'
Closing stock price (in dollars per share)	$37.07	'	'
Additional information	'	'	'
Aggregrate intrinsic value of RSUs outstanding	21,579,000	'	'
Total stock-based compensation expense	2,106,000	'	'
RSUs | Minimum	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Vesting period	'2 years	'	'
RSUs | Maximum	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Vesting period	'4 years	'	'
Options	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Stock options to purchase common stock (in shares)	6,343,000	6,581,000	'
Shares Available for Grant	'	'	'
Balance at the beginning of the period (in shares)	928,000	'	'
Additional shares authorized	4,502,000	'	'
Granted (in shares)	-2,225,000	'	'
Repurchased (in shares)	18,000	'	'
RSUs granted, net of cancellations/forfeitures (in shares)	-422,000	'	'
Options Cancelled/Forfeited (in shares)	685,000	'	'
Balance at the end of the period (in shares)	3,486,000	928,000	'
Number of Stock Options Outstanding	'	'	'
Balance at the beginning of the period (in shares)	6,581,000	'	'
Granted (in shares)	2,225,000	'	'
Exercised (in shares)	-1,778,000	'	'
Options Cancelled/Forfeited (in shares)	-685,000	'	'
Balance at the end of the period (in shares)	6,343,000	6,581,000	'
Exercisable at the end of the period (in shares)	5,994,000	'	'
Vested and expected to vest at the end of the period (in shares)	6,227,000	'	'
Weighted-Average Exercise Price	'	'	'
Balance at the beginning of the period (in dollars per share)	$3.21	'	'
Granted (in dollars per share)	$9.44	'	'
Exercised (in dollars per share)	$2.80	'	'
Repurchased (in dollars per share)	$8.34	'	'
Options Cancelled/Forfeited (in dollars per share)	$4.83	'	'
Balance at end of the period (in dollars per share)	$5.33	$3.21	'
Exercisable at the end of the period (in dollars per share)	$4.86	'	'
Vested and expected to vest at the end of the period (in dollars per share)	$5.35	'	'
Weighted-Average Remaining Contractual Life	'	'	'
Outstanding at the beginning of the period	'7 years 11 months 23 days	'8 years 29 days	'
Outstanding at the end of the period	'7 years 11 months 23 days	'8 years 29 days	'
Exercisable at the end of the period	'8 years 1 month 2 days	'	'
Vested and expected to vest at the end of the period	'7 years 11 months 19 days	'	'
Aggregate Intrinsic Value	'	'	'
Outstanding at the beginning of the period	11,431,000	'	'
Outstanding at the end of the period	201,305,000	11,431,000	'
Exercisable at the end of the period	193,064,000	'	'
Vested and expected to vest at the end of the period	197,535,000	'	'
Closing stock price (in dollars per share)	$37.07	'	'
Additional information	'	'	'
Weighted average grant date fair value (in dollars per share)	$5.08	$2.69	$1.77
Total intrinsic value of options exercised	38,241,000	948,000	567,000
Total estimated grant date fair value of options vested	4,190,000	3,122,000	740,000
Number of shares available for issuance	3,486,000	928,000	'
2006 Plan | RSUs	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Restricted stock units outstanding (in shares)	163,860	'	'
2006 Plan | Options	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Number of shares available for issuance	0	'	'
Stock options to purchase common stock (in shares)	6,217,668	'	'
Vesting period	'4 years	'	'
Number of Stock Options Outstanding	'	'	'
Balance at the end of the period (in shares)	6,217,668	'	'
2013 Equity Incentive Plan	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Vesting period	'10 years	'	'
2013 Equity Incentive Plan | Options	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Number of shares available for issuance	9,119,341	'	'
2013 Equity Incentive Plan | Options | Minimum	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Number of shares increased annually under the plan which is available for issuance	3,250,000	'	'
Number of shares as a percentage of outstanding shares on last day of preceding fiscal year which are available for issuance	5.00%	'	'
Employee Stock Purchase Plan	'	'	'
Additional information	'	'	'
Total stock-based compensation expense	$800,000	'	'
Employee Stock Purchase Plan | Options	'	'	'
Shares Available for Grant	'	'	'
Balance at the end of the period (in shares)	738,032	'	'
Additional information	'	'	'
Number of shares available for issuance	738,032	'	'
Employee Stock Purchase Plan | Options | Minimum	'	'	'
Stockholder's Equity and Stock Based Compensation	'	'	'
Number of shares increased annually under the plan which is available for issuance	650,000	'	'
Additional information	'	'	'
Number of shares as a percentage of outstanding shares on first day of fiscal year which are available for issuance	1.00%	'	'
Percentage of fair market value to purchase shares of common stock	85.00%	'	'
Employee Stock Purchase Plan | Options | Maximum	'	'	'
Additional information	'	'	'
Maximum percentage of eligible compensation of employees to purchase shares of common stock	15.00%	'	'
Maximum number of shares that can be purchased by participant during an offering period	1,250	'	'

Stockholders_Equity_and_Stock_4

Stockholder's Equity and Stock Based Compensation (Details 3) (Options, USD $)	12 Months Ended
	Dec. 31, 2013
$ 0.12 - $ 1.50	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$0.12
Exercise Price, high end of range (in dollars per share)	$1.50
Shares Outstanding	'
Number of shares	808,000
Weighted Average Remaining Contractual Term	'6 years 4 days
Weighted Average Exercise Price (in dollars per share)	$1.07
Shares Exercisable	'
Number of shares	773,000
Weighted Average Exercise Price (in dollars per share)	$1.11
$ 2.38 - $ 2.38	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$2.38
Exercise Price, high end of range (in dollars per share)	$2.38
Shares Outstanding	'
Number of shares	970,000
Weighted Average Remaining Contractual Term	'7 years 2 months 19 days
Weighted Average Exercise Price (in dollars per share)	$2.38
Shares Exercisable	'
Number of shares	970,000
Weighted Average Exercise Price (in dollars per share)	$2.38
$ 2.74 - $ 4.24	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$2.74
Exercise Price, high end of range (in dollars per share)	$4.24
Shares Outstanding	'
Number of shares	714,000
Weighted Average Remaining Contractual Term	'7 years 9 months
Weighted Average Exercise Price (in dollars per share)	$3.70
Shares Exercisable	'
Number of shares	667,000
Weighted Average Exercise Price (in dollars per share)	$3.66
$ 4.56 - $ 4.56	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$4.56
Exercise Price, high end of range (in dollars per share)	$4.56
Shares Outstanding	'
Number of shares	1,182,000
Weighted Average Remaining Contractual Term	'7 years 11 months 26 days
Weighted Average Exercise Price (in dollars per share)	$4.56
Shares Exercisable	'
Number of shares	1,040,000
Weighted Average Exercise Price (in dollars per share)	$4.56
$ 4.74 - $ 5.44	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$4.74
Exercise Price, high end of range (in dollars per share)	$5.44
Shares Outstanding	'
Number of shares	606,000
Weighted Average Remaining Contractual Term	'8 years 5 months 23 days
Weighted Average Exercise Price (in dollars per share)	$4.79
Shares Exercisable	'
Number of shares	606,000
Weighted Average Exercise Price (in dollars per share)	$4.79
$7.42 - $7.42	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$7.42
Exercise Price, high end of range (in dollars per share)	$7.42
Shares Outstanding	'
Number of shares	1,608,000
Weighted Average Remaining Contractual Term	'8 years 10 months 28 days
Weighted Average Exercise Price (in dollars per share)	$7.42
Shares Exercisable	'
Number of shares	1,608,000
Weighted Average Exercise Price (in dollars per share)	$7.42
$ 9.24 - $ 12.00	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$9.24
Exercise Price, high end of range (in dollars per share)	$12
Shares Outstanding	'
Number of shares	329,000
Weighted Average Remaining Contractual Term	'9 years 3 months 22 days
Weighted Average Exercise Price (in dollars per share)	$11.98
Shares Exercisable	'
Number of shares	329,000
Weighted Average Exercise Price (in dollars per share)	$11.98
$ 17.66 - $ 17.66	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$17.66
Exercise Price, high end of range (in dollars per share)	$17.66
Shares Outstanding	'
Number of shares	19,000
Weighted Average Remaining Contractual Term	'9 years 5 months 16 days
Weighted Average Exercise Price (in dollars per share)	$17.66
$ 32.65 - $ 32.65	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$32.65
Exercise Price, high end of range (in dollars per share)	$32.65
Shares Outstanding	'
Number of shares	22,000
Weighted Average Remaining Contractual Term	'9 years 9 months 14 days
Weighted Average Exercise Price (in dollars per share)	$32.65
$ 32.99 - $ 32.99	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$32.99
Exercise Price, high end of range (in dollars per share)	$32.99
Shares Outstanding	'
Number of shares	85,000
Weighted Average Remaining Contractual Term	'9 years 10 months 13 days
Weighted Average Exercise Price (in dollars per share)	$32.99
$ 0.12 - $ 32.99	'
Information regarding options outstanding	'
Exercise Price, low end of range (in dollars per share)	$0.12
Exercise Price, high end of range (in dollars per share)	$32.99
Shares Outstanding	'
Number of shares	6,343,000
Weighted Average Remaining Contractual Term	'7 years 11 months 23 days
Weighted Average Exercise Price (in dollars per share)	$5.33
Shares Exercisable	'
Number of shares	5,994,000
Weighted Average Exercise Price (in dollars per share)	$4.86

Stockholders_Equity_and_Stock_5

Stockholder's Equity and Stock Based Compensation (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Stock Purchase Plan	'	'	'
Assumptions used for estimation of fair value	'	'	'
Expected term	'9 months	'	'
Risk-free interest rate (as a percent)	0.11%	'	'
Expected volatility (as a percent)	42.00%	'	'
Expected dividend rate (as a percent)	0.00%	'	'
RSUs	'	'	'
Assumptions used for estimation of fair value	'	'	'
Vesting period	'4 years	'	'
Number of RSUs	'	'	'
Balance at the beginning of the period (in shares)	328,000	'	'
RSUs Granted (in shares)	474,000	'	'
RSUs Vested (in shares)	-169,000	'	'
RSUs Cancelled/Forfeited (in shares)	-51,000	'	'
Balance at the end of the period (in shares)	582,000	328,000	'
Weighted Average Grant Date Fair Value	'	'	'
Balance at the beginning of the period (in dollars per share)	$4.58	'	'
RSUs Granted (in dollars per share)	$28.69	4.58	'
RSUs Vested (in dollars per share)	$4.57	'	'
RSUs Cancelled/Forfeited (in dollars per share)	$23.32	'	'
Balance at the end of the period (in dollars per share)	$22.57	4.58	'
Aggregate Intrinsic Value	'	'	'
Balance at the beginning of the period (in dollars)	$2,437,000	'	'
Balance at the end of the period (in dollars)	21,579,000	2,437,000	'
Additional information	'	'	'
Closing stock price (in dollars per share)	$37.07	'	'
RSUs Granted (in dollars per share)	$28.69	4.58	'
Total intrinsic value of vested RSUs	2,479,000	'	'
Aggregate grant date fair value of vested RSUs	$800,000	'	'
RSUs | Minimum	'	'	'
Assumptions used for estimation of fair value	'	'	'
Vesting period	'2 years	'	'
RSUs | Maximum	'	'	'
Assumptions used for estimation of fair value	'	'	'
Vesting period	'4 years	'	'
Options	'	'	'
Assumptions used for estimation of fair value	'	'	'
Expected term	'6 years	'6 years	'6 years
Risk-free interest rate (as a percent)	'	1.02%	2.14%
Expected volatility (as a percent)	'	65.00%	84.00%
Expected dividend rate (as a percent)	0.00%	0.00%	0.00%
Options granted (in shares)	2,225,000	'	'
Additional information	'	'	'
Closing stock price (in dollars per share)	$37.07	'	'
Options | Minimum	'	'	'
Assumptions used for estimation of fair value	'	'	'
Risk-free interest rate (as a percent)	0.86%	'	'
Expected volatility (as a percent)	57.00%	'	'
Options | Maximum	'	'	'
Assumptions used for estimation of fair value	'	'	'
Risk-free interest rate (as a percent)	1.78%	'	'
Expected volatility (as a percent)	58.00%	'	'

Stockholders_Equity_and_Stock_6

Stockholder's Equity and Stock Based Compensation (Details 5) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	$8,075,000	$2,972,000	$1,309,000
Total unrecognized compensation cost related to unvested awards not yet recognized	'	'	'
Unrecognized Expense	20,497,000	'	'
Employee Stock Purchase Plan	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	800,000	'	'
Total unrecognized compensation cost related to unvested awards not yet recognized	'	'	'
Unrecognized Expense	166,000	'	'
Expected Recognition Period	'1 month 17 days	'	'
2013 Equity Incentive Plan	'	'	'
Stock Compensation Expense	'	'	'
Vesting period	'10 years	'	'
Stock options & Employee Stock Purchase Plan	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	5,969,000	2,972,000	1,309,000
RSUs	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	2,106,000	'	'
Stock-based compensation from performance based restricted stock units	1,300,000	'	'
Vesting period	'4 years	'	'
Total unrecognized compensation cost related to unvested awards not yet recognized	'	'	'
Unrecognized Expense	8,914,000	'	'
Expected Recognition Period	'2 years 10 months 2 days	'	'
RSUs | Minimum	'	'	'
Stock Compensation Expense	'	'	'
Vesting period	'2 years	'	'
RSUs | Maximum	'	'	'
Stock Compensation Expense	'	'	'
Vesting period	'4 years	'	'
Stock options	'	'	'
Total unrecognized compensation cost related to unvested awards not yet recognized	'	'	'
Unrecognized Expense	11,417,000	'	'
Expected Recognition Period	'2 years 6 months 4 days	'	'
Stock options | 2006 Stock Plan	'	'	'
Stock Compensation Expense	'	'	'
Vesting period	'4 years	'	'
Percentage of awards which will vest after one year	25.00%	'	'
Period of beginning of vesting of awards from grant date	'1 year	'	'
Cost of revenue	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	1,186,000	385,000	157,000
Cost of revenue | Stock options & Employee Stock Purchase Plan	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	947,000	385,000	157,000
Cost of revenue | RSUs	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	239,000	'	'
Cost of subscription and support	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	496,000	216,000	108,000
Cost of subscription and support | Stock options & Employee Stock Purchase Plan	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	385,000	216,000	108,000
Cost of subscription and support | RSUs	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	111,000	'	'
Cost of professional services	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	690,000	169,000	49,000
Cost of professional services | Stock options & Employee Stock Purchase Plan	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	562,000	169,000	49,000
Cost of professional services | RSUs	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	128,000	'	'
Operating expenses	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	6,889,000	2,587,000	1,152,000
Operating expenses | Stock options & Employee Stock Purchase Plan	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	5,022,000	2,587,000	1,152,000
Operating expenses | RSUs	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	1,867,000	'	'
Research and development	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	2,084,000	575,000	294,000
Research and development | Stock options & Employee Stock Purchase Plan	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	1,192,000	575,000	294,000
Research and development | RSUs	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	892,000	'	'
Sales and marketing	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	2,293,000	966,000	509,000
Sales and marketing | Stock options & Employee Stock Purchase Plan	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	1,500,000	966,000	509,000
Sales and marketing | RSUs	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	793,000	'	'
General and administrative	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	2,512,000	1,046,000	349,000
General and administrative | Stock options & Employee Stock Purchase Plan	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	2,330,000	1,046,000	349,000
General and administrative | RSUs	'	'	'
Stock Compensation Expense	'	'	'
Total stock-based compensation expense	$182,000	'	'

Net_Loss_per_Share_Details

Net Loss per Share (Details) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Numerator:	'	'	'
Net loss	($47,360)	($34,385)	($22,606)
Denominator:	'	'	'
Weighted-average common shares outstanding	24,881	2,934	2,489
Less: Weighted-average unvested common shares subject to repurchase or forfeiture and shares held in escrow	-172	-128	-215
Weighted-average shares used in computing net loss per share of common stock, basic and diluted	24,709	2,806	2,274
Net loss per share of common stock, basic and diluted (in dollars per share)	($1.92)	($12.26)	($9.94)
Potentially dilutive securities that were excluded from the diluted per share	'	'	'
Potentially dilutive securities excluded from the diluted per share calculation	7,493	32,946	29,848
Convertible preferred stock	'	'	'
Potentially dilutive securities that were excluded from the diluted per share	'	'	'
Potentially dilutive securities excluded from the diluted per share calculation	'	25,876	25,034
Stock options to purchase common stock	'	'	'
Potentially dilutive securities that were excluded from the diluted per share	'	'	'
Potentially dilutive securities excluded from the diluted per share calculation	6,343	6,581	4,587
Common stock held in escrow	'	'	'
Potentially dilutive securities that were excluded from the diluted per share	'	'	'
Potentially dilutive securities excluded from the diluted per share calculation	137	12	'
Common stock subject to repurchase	'	'	'
Potentially dilutive securities that were excluded from the diluted per share	'	'	'
Potentially dilutive securities excluded from the diluted per share calculation	127	148	227
Employee stock purchase plan	'	'	'
Potentially dilutive securities that were excluded from the diluted per share	'	'	'
Potentially dilutive securities excluded from the diluted per share calculation	304	'	'
Restricted stock units	'	'	'
Potentially dilutive securities that were excluded from the diluted per share	'	'	'
Potentially dilutive securities excluded from the diluted per share calculation	582	328	'

Income_Taxes_Details

Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loss before provision for income taxes:	'	'	'
Domestic	($37,481,000)	($29,119,000)	($20,295,000)
Foreign	-9,851,000	-5,247,000	-2,305,000
Loss before provision for income taxes	-47,332,000	-34,366,000	-22,600,000
Current tax provision:	'	'	'
State	10,000	3,000	6,000
Foreign	83,000	16,000	'
Total current tax provision	93,000	19,000	6,000
Deferred tax provision	-65,000	'	'
Total provision for income taxes	28,000	19,000	6,000
Items accounting for the difference between income taxes computed at the federal statutory rate and the provision for income taxes	'	'	'
Federal statutory rate (as a percent)	34.00%	34.00%	34.00%
Stock-based compensation (as a percent)	-1.59%	-1.54%	-0.86%
Valuation allowance (as a percent)	-28.31%	-26.85%	-31.06%
Foreign rate differential (as a percent)	-5.00%	-5.24%	-3.47%
Federal research and development credit (as a percent)	1.19%	0.00%	1.51%
Other (as a percent)	-0.35%	-0.43%	-0.15%
Effective income tax rate (as a percent)	-0.06%	-0.06%	-0.03%
Deferred tax assets:	'	'	'
Accounts receivable principally due to allowance for doubtful accounts	92,000	107,000	90,000
Compensated absences, principally due to accruals for financial reporting purposes	2,993,000	1,604,000	366,000
Net operating loss carryforwards	42,704,000	30,251,000	16,570,000
Federal tax credits	1,766,000	783,000	783,000
State tax credits	1,166,000	771,000	508,000
Other deductible temporary differences	964,000	521,000	487,000
Stock-based compensation	1,508,000	792,000	351,000
Foreign Credit	25,000	'	'
Total deferred tax assets	51,218,000	34,829,000	19,155,000
Deferred tax liabilities:	'	'	'
Capitalized software development	-149,000	-37,000	-98,000
Acquired intangible assets	-1,979,000	-964,000	'
Total deferred tax liability	-2,128,000	-1,001,000	-98,000
Valuation allowance	-49,388,000	-33,828,000	-19,057,000
Net deferred taxes	-298,000	'	'
Increase in net valuation allowance	$15,600,000	$14,800,000	'

Income_Taxes_Details_2

Income Taxes (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net operating loss carryforwards	'	'	'
Net operating loss carryforwards	$251,076,000	$149,188,000	$83,943,000
Federal	'	'	'
Net operating loss carryforwards	'	'	'
Net operating loss carryforwards	130,797,000	73,491,000	41,554,000
Excess stock based compensation that will result in increases to additional paid in capital, when realized	29,300,000	'	'
California	'	'	'
Net operating loss carryforwards	'	'	'
Net operating loss carryforwards	102,606,000	68,906,000	40,278,000
Excess stock based compensation that will result in increases to additional paid in capital, when realized	8,900,000	'	'
Foreign	'	'	'
Net operating loss carryforwards	'	'	'
Net operating loss carryforwards	$17,673,000	$6,791,000	$2,111,000

Income_Taxes_Details_3

Income Taxes (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Credit carryforwards	'	'	'
Credit carryforwards	$3,558,000	$1,952,000	$1,553,000
Reduction of net operating losses as a result of previous ownership changes	1,200,000	'	'
Reduction of research and development credits as a result of previous ownership changes	8,000	'	'
Uncertain Tax Positions	'	'	'
Gross increases (decreases) - current period tax positions	472,000	'	'
Unrecognized benefit - end of period	472,000	'	'
Unrecognized tax benefits would affect the Company's effective tax rate, if recognized	0	'	'
Interest or penalties accrued related to unrecognized tax benefits	0	0	0
Federal | Research and development	'	'	'
Credit carryforwards	'	'	'
Credit carryforwards	1,766,000	783,000	783,000
Benefit due to retroactive extension	419,000	'	'
California | Research and development	'	'	'
Credit carryforwards	'	'	'
Credit carryforwards	1,767,000	1,169,000	770,000
International | Research and development	'	'	'
Credit carryforwards	'	'	'
Credit carryforwards	$25,000	'	'

Segment_Information_and_Inform2

Segment Information and Information about Geographic Areas (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	item
Segment Information and Information about Geographic Areas	'	'	'
Number of business segment	1	'	'
Revenue and long-lived assets by geographic area	'	'	'
Revenue	$95,918	$58,413	$32,392
Long-lived assets	13,856	5,617	'
United States	'	'	'
Revenue and long-lived assets by geographic area	'	'	'
Revenue	82,019	50,910	28,913
Long-lived assets	13,573	5,369	'
EMEA	'	'	'
Revenue and long-lived assets by geographic area	'	'	'
Revenue	6,989	3,686	1,538
Long-lived assets	280	248	'
Other	'	'	'
Revenue and long-lived assets by geographic area	'	'	'
Revenue	6,910	3,817	1,941
Long-lived assets	$3	'	'