Zendesk (ZEN) 10-Q 7 Aug 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 31, 2014
Document And Entity Information [Line Items]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Jun-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Trading Symbol	'ZEN	'
Entity Registrant Name	'Zendesk, Inc.	'
Entity Central Index Key	'0001463172	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Non-accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	72,380,374

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current Assets:	'	'
Cash and cash equivalents	$120,054	$53,725
Marketable securities	9,430	9,889
Accounts receivable, net of allowance for doubtful accounts of $361 and $282 as of June 30, 2014 and December 31, 2013, respectively	9,655	7,237
Prepaid expenses and other current assets	5,806	3,008
Total current assets	144,945	73,859
Marketable securities, noncurrent	2,764	2,225
Property and equipment, net	38,160	15,431
Goodwill and intangible assets, net	15,961	'
Other assets	1,482	1,221
Total assets	203,312	92,736
Current liabilities:	'	'
Accounts payable	6,758	3,988
Accrued liabilities	11,764	4,737
Accrued compensation and related benefits	7,971	4,226
Deferred revenue	38,526	28,473
Current portion of credit facility	2,685	365
Current portion of capital leases	195	364
Total current liabilities	67,899	42,153
Deferred revenue, noncurrent	462	575
Credit facility, noncurrent	5,015	23,395
Capital leases, noncurrent	'	10
Other liabilities	8,193	1,510
Total liabilities	81,569	67,643
Commitments and contingencies (Note 7)	'	'
Redeemable convertible preferred stock, par value $0.01 per share, issuable in series: no shares and 24.0 million shares authorized; no shares and 23.6 million shares issued and outstanding as of June 30, 2014 and December 31, 2013, respectively	'	71,369
Stockholders’ equity (deficit):	'	'
Preferred stock, par value $0.01 per share: 5.0 million and no shares authorized as of June 30, 2014 and December 31, 2013, respectively; no shares issued and outstanding as of June 30, 2014 and December 31, 2013	'	'
Common stock, par value $0.01 per share: 400.0 million and 125.0 million shares authorized; 72.8 million and 23.7 million shares issued; 72.3 million and 23.2 million shares outstanding as of June 30, 2014 and December 31, 2013, respectively (including 0.8 million shares subject to repurchase, legally issued and outstanding, as of June 30, 2014 and December 31, 2013)	715	229
Additional paid-in capital	217,815	18,591
Accumulated other comprehensive income	322	10
Accumulated deficit	-96,457	-64,454
Treasury stock at cost (0.5 million shares as of June 30, 2014 and December 31, 2013)	-652	-652
Total stockholders’ equity (deficit)	121,743	-46,276
Total liabilities, redeemable convertible preferred stock, and stockholders’ equity (deficit)	$203,312	$92,736

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, except Share data in Millions, unless otherwise specified
Allowance for doubtful accounts	$361	$282
Redeemable convertible preferred stock, par value	$0.01	$0.01
Redeemable convertible preferred stock, shares authorized	0	24
Redeemable convertible preferred stock, shares issued	0	23.6
Redeemable convertible preferred stock, shares outstanding	0	23.6
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	5	0
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	400	125
Common stock, shares issued	72.8	23.7
Common stock, shares outstanding	72.3	23.2
Common stock shares outstanding, subject to repurchase	0.8	0.8
Treasury stock, shares	0.5	0.5

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended				6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Revenue	$29,506		$16,396		$54,598		$30,307
Cost of revenue	11,731	[1]	5,681	[1]	20,726	[1]	10,551	[1]
Gross profit	17,775		10,715		33,872		19,756
Operating expenses:	'		'		'		'
Research and development	10,499	[1]	3,528	[1]	15,677	[1]	6,877	[1]
Sales and marketing	20,339	[1]	8,208	[1]	34,626	[1]	16,203	[1]
General and administrative	8,315	[1]	5,140	[1]	14,699	[1]	8,098	[1]
Total operating expenses	39,153	[1]	16,876	[1]	65,002	[1]	31,178	[1]
Operating loss	-21,378		-6,161		-31,130		-11,422
Other expense, net	-450		-133		-909		-210
Loss before provision for income taxes	-21,828		-6,294		-32,039		-11,632
Provision (benefit) for income taxes	-85		58		-36		78
Net loss	-21,743		-6,352		-32,003		-11,710
Accretion of redeemable convertible preferred stock	-6		-12		-18		-24
Net loss attributable to common stockholders	($21,749)		($6,364)		($32,021)		($11,734)
Net loss per share attributable to common stockholders, basic and diluted	($0.48)		($0.30)		($0.95)		($0.55)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted	45,760		21,568		33,817		21,213
[1]	(1) Includes share-based compensation expense as follows:  Three Months Ended June 30, Six Months Ended June 30, 2014 2013 2014 2013 Cost of revenue$1,010 $61 $1,100 $100 Research and development 4,168 155 4,478 226 Sales and marketing 3,268 229 3,758 388 General and administrative 2,537 2,022 3,471 2,155

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Cost of Revenue	'	'	'	'
Share-based compensation expense	$1,010	$61	$1,100	$100
Research and Development	'	'	'	'
Share-based compensation expense	4,168	155	4,478	226
Sales and Marketing	'	'	'	'
Share-based compensation expense	3,268	229	3,758	388
General and Administrative	'	'	'	'
Share-based compensation expense	$2,537	$2,022	$3,471	$2,155

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net loss	($21,743)	($6,352)	($32,003)	($11,710)
Other comprehensive loss, net of tax:	'	'	'	'
Net change in unrealized gain (loss) on available-for-sale investments	-7	-10	-8	-21
Foreign currency translation gain	123	'	320	'
Comprehensive loss	($21,627)	($6,362)	($31,691)	($11,731)

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities	'	'
Net loss	($32,003)	($11,710)
Adjustments to reconcile net loss to net cash used in operating activities:	'	'
Depreciation and amortization	4,504	2,165
Share-based compensation	12,807	2,869
Other	178	21
Changes in operating assets and liabilities:	'	'
Accounts receivable	1,857	1,032
Prepaid expenses and other current assets	2,617	823
Other assets and liabilities	-490	-348
Accounts payable	-535	404
Accrued liabilities	872	874
Accrued compensation and related benefits	3,426	777
Deferred revenue	9,647	5,945
Net cash used in operating activities	-5,088	-162
Cash flows from investing activities	'	'
Purchases of property and equipment	-13,097	-3,979
Internal-use software and website development costs	-3,915	-2,344
Purchases of marketable securities	-6,464	-12,409
Proceeds from maturities of marketable securities	6,250	'
Cash paid for the acquisition of Zopim, net of cash acquired	-1,896	'
Net cash used in investing activities	-19,122	-18,732
Cash flows from financing activities	'	'
Proceeds from initial public offering, net of issuance costs	104,377	'
Proceeds from exercise of employee stock options	3,372	233
Proceeds from issuance of debt	3,940	'
Principal payments on debt	-20,000	'
Taxes paid related to net share settlement of equity awards	-969	'
Principal payments on capital lease obligations	-179	-166
Net cash provided by financing activities	90,541	67
Effect of exchange rate changes on cash and cash equivalents	-2	17
Net increase (decrease) in cash and cash equivalents	66,329	-18,810
Cash and cash equivalents at the beginning of period	53,725	48,688
Cash and cash equivalents at the end of period	120,054	29,878
Supplemental cash flow data:	'	'
Cash paid for interest and income taxes	660	56
Non-cash investing and financing activities:	'	'
Issuance of common stock for the acquisition of Zopim	10,893	'
Purchases of property and equipment in accounts payable and accrued expenses	5,001	45
Property and equipment acquired through tenant improvement allowances	3,554	'
Share-based compensation capitalized in internal-use software development costs	1,125	85
IPO costs in accounts payable	1,145	'
Vesting of early exercised stock options	$810	$612

Overview_and_Basis_of_Presenta

Overview and Basis of Presentation	6 Months Ended
	Jun. 30, 2014
Overview and Basis of Presentation	'
	Note 1. Overview and Basis of Presentation
	Company and Background
	Zendesk was founded in Denmark in 2007 and reincorporated in Delaware in April 2009.
	Our mission is to help organizations build successful long-term relationships with their customers. We are a software development company that provides a software-as-a-service, or SaaS, customer service platform that enables our customers to provide tailored support through multiple channels, establish effective self-service support resources, proactively serve customers through customer engagement capabilities, integrate with other applications and consolidate and analyze data from customer interactions in powerful ways.  We also provide SaaS live chat software that can be utilized independently to facilitate proactive communications between organizations and their customers or integrated seamlessly into our customer service platform.
	References to Zendesk, “Company”, “our”, or “we” in these notes refer to Zendesk, Inc. and its subsidiaries on a consolidated basis.
	Basis of Presentation
	These unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles, or GAAP, and applicable rules and regulations of the Securities and Exchange Commission, or SEC, regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our final prospectus filed with the SEC on May 16, 2014 pursuant to Rule 424(b) of the Securities Act of 1933, as amended. There have been no changes to our significant accounting policies described in the prospectus that have had a material impact on our condensed consolidated financial statements and related notes.
	The consolidated balance sheet as of December 31, 2013 included herein was derived from the audited financial statements as of that date. The unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, our comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year ending December 31, 2014.
	Initial Public Offering
	In May, 2014, we completed our initial public offering, or IPO, in which we issued and sold 12.8 million shares of common stock at a public offering price of $9.00 per share. We received net proceeds of $103.1 million after deducting underwriting discounts and commissions of $8.1 million and other offering expenses of $3.8 million. Upon the closing of the IPO, all shares of our then-outstanding redeemable convertible preferred stock automatically converted into an aggregate of 34.3 million shares of common stock.
	All restricted stock units, or RSUs, and certain options granted to employees prior to the IPO vest upon the satisfaction of both a service condition and a performance condition. These RSUs and stock options with both a service condition and performance condition are collectively referred to as “Performance Awards” in the following discussion. The service condition for substantially all of the Performance Awards is satisfied over three or four years. The performance condition was satisfied upon the effectiveness of the registration statement related to our IPO. No share-based compensation expense had been recognized for the Performance Awards prior to the IPO. Upon the satisfaction of the performance condition, we recognized a cumulative share-based compensation expense for the portion of the Performance Awards that had met the service condition. For the three and six months ended June 30, 2014, share-based compensation expense related to the Performance Awards recognized was $6.1 million, using the accelerated attribution method. The remaining unrecognized share-based compensation expense related to the Performance Awards will be recorded over the remaining requisite service period using the accelerated attribution method, net of estimated forfeitures.
	As of June 30, 2014, we had a total of $63.8 million future period share-based compensation expense related to all equity awards, net of estimated forfeitures, to be recognized over a weighted average period of 3.7 years.
	Use of Estimates
	The preparation of consolidated financial statements in conformity with GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reported periods. Significant items subject to such estimates and assumptions include the fair value of share-based awards, fair value of acquired intangible assets, goodwill, unrecognized tax benefits, useful lives of intangible assets and property and equipment, and the capitalization and estimated useful life of our capitalized internal-use software.
	These estimates are based on information available as of the date of the financial statements; therefore, actual results could differ from those estimates.
	Recently Issued and Adopted Accounting Pronouncements
	On May 28, 2014, the FASB issued ASU 2014-09 regarding ASC Topic 606 “Revenue from Contracts with Customers.” This ASU provides principles for recognizing revenue to which an entity expects to be entitled for the transfer of promised goods or services to customers. This ASU will be effective for our fiscal year beginning January 1, 2017. Early adoption is not permitted.  We are currently evaluating the accounting, transition and disclosure requirements of the standard and cannot currently estimate the financial statement impact of adoption.

Acquisition

Acquisition	6 Months Ended
	Jun. 30, 2014
Acquisition	'
	Note 2. Acquisition
	On March 21, 2014, we completed the acquisition of Zopim Technologies Pte Ltd., or Zopim, a software development company that provides a SaaS live chat service. The fair value of assets acquired and liabilities assumed was based on a preliminary valuation and our estimates and assumptions are subject to change within the measurement period. The primary areas of those preliminary estimates that are not yet finalized relate to accrued liabilities and income and non-income based tax liabilities. During the three months ended June 30, 2014, we made adjustments of $0.2 million to the preliminary purchase price allocation related to final working capital acquired.  The total adjusted acquisition date fair value of consideration transferred was $15.8 million ($4.9 million of cash and $10.9 million of our common stock), which included $1.1 million of cash and $2.4 million of common stock consideration held back between 12 and 18 months as partial security for standard indemnification obligations.  Of the total purchase price, $9.6 million was allocated to goodwill, $6.6 million to identifiable intangible assets, and $0.4 million to net liabilities assumed. Goodwill generated from the acquisition is attributable to expected synergies from future growth and potential future monetization opportunities, and is not deductible for tax purpose.  Pro forma revenue and results of operations have not been presented because the historical results of Zopim were not material to our consolidated financial statements in any period presented.
	In connection with the acquisition, we also established a retention plan pursuant to which we issued RSUs for 0.9 million shares of our common stock, which vest in three annual installments from the date of acquisition, and agreed to pay cash in an aggregate amount of $3.0 million in two annual installments from the date of acquisition to Zopim employees in connection with their continued employment, which is recorded as compensation expense over the associated service periods of such employees.

Fair_Value_Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2014
Fair Value Measurements	'
	Note 3. Fair Value Measurements
	The following tables present information about our financial assets measured at fair value on a recurring basis as of June 30, 2014 and December 31, 2013 based on the three-tier fair value hierarchy (in thousands):
		Fair Value Measurement at
		30-Jun-14
		Level 1		Level 2		Total
	Description
	U.S. corporate securities	$	—	$	12,194	$	12,194
	Money market funds		10,799		—		10,799
	Total	$	10,799	$	12,194	$	22,993
	Included in cash and cash equivalents					$	10,799
	Included in marketable securities					$	12,194
		Fair Value Measurement at
		31-Dec-13
		Level 1		Level 2		Total
	Description
	U.S. corporate securities	$	—	$	12,114	$	12,114
	Money market funds		10,836		—		10,836
	Total	$	10,836	$	12,114	$	22,950
	Included in cash and cash equivalents					$	10,836
	Included in marketable securities					$	12,114
	There were no transfers between fair value measurement levels during the six months ended June 30, 2014.
	Gross unrealized gains or losses for cash equivalents and available-for-sale marketable securities as of June 30, 2014 and December 31, 2013 were not material. As of June 30, 2014 and December 31, 2013, there were no securities that were in an unrealized loss position for more than 12 months.
	The following table classifies our available-for-sale marketable securities by contractual maturities as of June 30, 2014 and December 31, 2013 (in thousands):
		June 30,		December 31,
		2014		2013
	Due in one year	$	9,430	$	9,889
	Due in one to five years		2,764		2,225
	Total	$	12,194	$	12,114

Property_and_Equipment

Property and Equipment	6 Months Ended
	Jun. 30, 2014
Property and Equipment	'
	Note 4. Property and Equipment
	Property and equipment, net consists of the following (in thousands):
		June 30,			December 31,
		2014			2013
	Capitalized internal-use software	$	13,119		$	11,104
	Furniture and fixtures		4,156			1,383
	Hosting equipment		11,630			7,931
	Computer equipment and software		3,583			1,680
	Leasehold improvements		12,438			1,717
	Construction in progress		6,014			341
	Total		50,940			24,156
	Less accumulated depreciation and amortization		(12,780	)		(8,725	)
	Property and equipment, net	$	38,160		$	15,431
	Depreciation expense was $1.2 million and $0.7 million for the three months ended June 30, 2014 and 2013, respectively, and $2.3 million and $1.1 million for the six months ended June 30, 2014 and 2013, respectively.
	We capitalized $3.2 million and $1.3 million in internal-use software during the three months ended June 30, 2014 and 2013, respectively, and $5.0 million and $2.4 million during the six months ended June 30, 2014 and 2013, respectively. Included in the capitalized development costs are $1.1 million and $0.1 million in share-based compensation costs for the three months ended June 30, 2014 and 2013, respectively, and $1.1 and $0.1 million for the six months ended June 30, 2014 and 2013, respectively. Amortization expense of capitalized internal-use software totaled $1.0 million and $0.5 million for the three months ended June 30, 2014 and 2013, respectively, and $1.7 million and $1.0 million for the six months ended June 30, 2014 and 2013, respectively. The carrying value of capitalized internal-use software at June 30, 2014 and December 31, 2013 was $10.2 million and $6.8 million, respectively, including $3.4 million and $0.3 million in construction in progress, respectively.

Goodwill_and_Purchased_Intangi

Goodwill and Purchased Intangible Assets	6 Months Ended
	Jun. 30, 2014
Goodwill and Purchased Intangible Assets	'
	Note 5. Goodwill and Purchased Intangible Assets
	Goodwill as of June 30, 2014 was $9.8 million. No goodwill was recorded as of December 31, 2013.
	Purchased intangible assets subject to amortization as of June 30, 2014 consisted of the following (in thousands). No purchased intangible assets were recorded as of December 31, 2013.
		Cost		Accumulated			Net		Remaining Useful Life
				Amortization
									(In years)
	Developed technology	$	5,308	$	(420	)	$	4,888		3.2
	Customer relationship		1,327		(92	)		1,235		3.7
	Trade name		61		(17	)		44		0.7
		$	6,696	$	(529	)	$	6,167
	Amortization expense of purchased intangible assets for the three and six months ended June 30, 2014 was $0.5 million. No amortization expense was recorded for the three and six months ended June 30, 2013.
	Estimated future amortization expense as of June 30, 2014 is as follows (in thousands):
	Remainder of 2014	$	963
	2015		1,862
	2016		1,854
	2017		1,418
	2018		70
	2019 and thereafter		—
		$	6,167

Credit_Facility

Credit Facility	6 Months Ended
	Jun. 30, 2014
Credit Facility	'
	Note 6. Credit Facility
	We have a credit facility with Silicon Valley Bank consisting of a $20.0 million revolving line of credit and a $10.0 million equipment line of credit. As of December 31, 2013, outstanding balance under the revolving line of credit was $20.0 million. In June 2014 we repaid all outstanding principal and accrued interest under the revolving line of credit and as of June 30, 2014 there was no balance outstanding.  As of June 30, 2014 and December 31, 2013, outstanding balance under the equipment line of credit was $7.7 million and $3.8 million, respectively.
	Prior to our IPO, borrowings on the revolving line of credit bore interest at the Prime Rate plus 2.0% per annum. Upon the consummation of the IPO, the interest rate was reduced to the Prime Rate. Borrowings on the revolving line of credit are subject to a borrowing base limit determined monthly based on our recurring revenue metrics from previous months and the ratio of certain current assets to current liabilities as of the previous month end. To the extent we borrow funds pursuant to the revolving line of credit, we are entitled to make interest-only payments until January 1, 2016, when the outstanding balance is due in full.
	Borrowings on the equipment line of credit bear interest of 2.5% per annum. For each equipment advance, we are entitled to make interest-only payments until September 14, 2014, when the last draw against the equipment line of credit can be made. The outstanding balance as of September 14, 2014 will be payable in equal monthly installments for 30 months thereafter, with the last payment due on March 14, 2017. We are also required to make a final payment fee of 4.0% of the aggregate principal amount of all historical advances made under the equipment line of credit on March 14, 2017.
	The credit facility is collateralized by substantially all of our assets, excluding our intellectual property. Our domestic subsidiary is a guarantor of the credit facility and we have pledged up to 65% of the equity in our international subsidiaries as collateral. The credit facility also imposes various covenants on us, including the delivery of financial and other information, the maintenance of our primary operating and securities accounts with the lender, the maintenance of minimum revenue targets and an agreed ratio of certain current assets to current liabilities, as well as limitations on dispositions, changes in business or management, certain mergers or consolidations, dividends and other corporate activities. As of June 30, 2014 and December 31, 2013, we were in compliance with all of the covenants contained in the credit facility.
	Contractual future principal repayments in relation to the credit facility are as follows for the year ending December 31 (in thousands):
	2014 (remaining 6 months)	$	749
	2015		3,041
	2016		3,118
	2017		792
	2018 and thereafter		—
		$	7,700

Commitments_and_Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies	'
	Note 7. Commitments and Contingencies
	Leases
	We lease office space under noncancelable operating leases with various expiration dates. Certain of the office space lease agreements contain rent holidays or rent escalation provisions. Rent holiday and rent escalation provisions are considered in determining the straight-line expense to be recorded over the lease term. The lease term begins on the date of initial possession of the leased property for purposes of recognizing lease expense on a straight-line basis over the term of the lease. Rent expense was $1.8 million and $0.5 million for the three months ended June 30, 2014 and 2013, respectively, and $3.5 million and $0.9 million for the six months ended June 30, 2014 and 2013, respectively. Deferred rent was $6.6 million and $1.0 million as of June 30, 2014 and December 31, 2013, respectively, which is included in other liabilities.
	We lease computer equipment from various parties under capital lease agreements that expire through March 2015. The total outstanding balance financed under capital leases was $0.2 million and $0.4 million as of June 30, 2014 and December 31, 2013, respectively. Accumulated depreciation on the leased assets was $0.8 million and $0.7 million as of June 30, 2014 and December 31, 2013, respectively. Depreciation of assets recorded under the capital leases is included in depreciation expense.
	Litigation and Loss Contingencies
	We accrue estimates for resolution of legal and other contingencies when losses are probable and estimable. From time to time, we may become a party to litigation and subject to claims incident to the ordinary course of business, including intellectual property claims, labor and employment claims, and threatened claims, breach of contract claims, tax, and other matters. We currently have no material pending litigation.
	We are not currently aware of any litigation matters or loss contingencies that would be expected to have a material adverse effect on our business, consolidated financial position, results of operations, comprehensive loss, or cash flows.

Common_Stock_and_Stockholders_

Common Stock and Stockholders' Equity (Deficit)	6 Months Ended
	Jun. 30, 2014
Common Stock and Stockholders' Equity (Deficit)	'
	Note 8. Common Stock and Stockholders’ Equity (Deficit)
	Convertible Preferred Stock
	Upon the completion of the IPO, all outstanding convertible preferred stock was converted into 34.3 million shares of common stock.
	Reverse Stock Split
	In April 2014, our board of directors and stockholders approved an amendment of our sixth amended and restated certificate of incorporation, as amended to effect a one-for-two reverse stock split of our common stock and a corresponding adjustment to the conversion prices of our redeemable convertible preferred stock. All share and per share information and the conversion prices of each outstanding series of our redeemable convertible preferred stock referenced throughout the condensed consolidated financial statements and notes to the condensed consolidated financial statements have been retroactively adjusted to reflect this stock split.
	Common Stock Authorized
	Upon the completion of the IPO, we increased the amount of common stock authorized for issuance from 125.0 million to 400.0 million common shares with a par value of $0.01 per share.
	Employee Equity Plans
	Employee Stock Purchase Plan
	Our board of directors adopted the Employee Stock Purchase Plan, or ESPP, in February 2014, which became effective on May 14, 2014. The ESPP initially reserved and authorized the issuance of up to 3.6 million shares of common stock. The ESPP provides that the number of shares reserved and available for issuance under the plan will automatically increase each January, beginning on January 1, 2015, by the lesser of 1.5 million shares, 1% of the number of shares issued and outstanding on the immediately preceding December 31, or such lesser number of shares as determined by our compensation committee.
	2009 Stock Option and Grant Plan
	Our board of directors adopted the 2009 Stock Option and Grant Plan, or the 2009 Plan, in July 2009. The 2009 Plan was terminated in connection with our IPO, and accordingly, no shares are available for issuance under this plan. The 2009 Plan continues to govern outstanding awards granted thereunder.
	2014 Stock Option and Grant Plan
	Our board of directors adopted the 2014 Stock Option and Incentive Plan, or the 2014 Plan, in February 2014, which became effective in May 2014 upon the effectiveness of the registration statement related to our IPO. The 2014 Plan serves as the successor to our 2009 Plan. The 2014 Plan initially reserved and authorized the issuance of 7.5 million shares of our common stock. Additionally, shares not issued or subject to outstanding grants under the 2009 Plan rolled into the 2014 Plan, resulting in a total of 8.3 million available shares under the 2014 Plan as of the effective date. The 2014 Plan provides that the number of shares reserved and available for issuance under the plan will automatically increase each January 1, beginning on January 1, 2015, by 5% of the outstanding number of shares of our common stock on the immediately preceding December 31, or such lesser number of shares as determined by our compensation committee.
	The following table summarizes our stock option and RSU award activities for the six months ended June 30, 2014 (in thousands, except per share information):
					Options Outstanding									RSUs Outstanding
										Weighted
										Average							Weighted
		Shares						Weighted		Remaining		Aggregate					Average
		Available			Number of			Average		Contractual		Intrinsic		Outstanding			Grant Date
		for Grant			Shares			Exercise Price		Term		Value		RSUs			Fair Value
										(In years)
	Outstanding — January 1, 2014		1,854			10,134		$	2.82						811		$	6.76
	Increase in authorized shares		13,750
	Stock options granted		(5,468	)		5,468			9.64
	RSUs granted		(1,897	)											1,897			11.45
	Stock options exercised		—			(893	)		2.94
	RSUs vested		—												(150	)		7.77
	Stock options forfeited or canceled		354			(354	)		4.4
	RSUs forfeited or cancelled		182			—			—						(182	)		7.64
	Outstanding — June 30, 2014		8,775			14,355		$	5.38		8.41	$	172,283		2,376		$	10.37
	Aggregate intrinsic value represents the difference between the Company's closing stock price of its common stock and the exercise price of outstanding, in-the-money options. The Company’s closing stock price as reported on the New York Stock Exchange as of June 30, 2014 was $17.38.
	Early Exercise of Stock Options and Purchase of Unvested Stock Awards
	Certain stock options awarded under the 2009 Plan permit early exercise. Common stock purchased pursuant to an early exercise of stock options or unvested stock awards is not deemed to be outstanding for financial reporting purposes until those shares vest. Therefore, cash received in exchange for unvested shares is recorded as a liability and is transferred into common stock and additional paid-in capital as the shares vest. Upon termination of service, we may, at our discretion, repurchase unvested shares acquired through early exercise of stock options or purchase of unvested stock awards at a price equal to the price per share paid upon the exercise of such options or the purchase of such unvested stock awards. As of June 30, 2014 and December 31, 2013, there were 0.8 million shares outstanding as a result of the early exercise of stock options and purchase of unvested stock awards that were classified as accrued liabilities for an aggregated amount of $2.8 million and $1.4 million, respectively.   There were no repurchases during the six months ended June 30, 2014.

Net_Loss_per_Share

Net Loss per Share	6 Months Ended
	Jun. 30, 2014
Net Loss per Share	'
	Note 9. Net Loss Per Share
	We compute net loss per share of common stock in conformity with the two-class method required for participating securities. We considered all series of the redeemable convertible preferred stock to be participating securities as the holders of the preferred stock were entitled to receive a non-cumulative dividend on a pari passu basis in the event that a dividend is paid on common stock. We also consider shares of common stock issued upon the early exercise of stock options subject to repurchase to be participating securities, because holders of such shares have non-forfeitable dividend rights in the event a dividend is paid on common stock. The holders of all series of the redeemable convertible preferred stock and the holders of shares of common stock acquired upon early exercise of stock options do not have a contractual obligation to share in our losses. As such, our net losses for the three and six months ended June 30, 2014 and 2013 were not allocated to these participating securities.
	Basic net loss per share attributable to common stockholders is computed by dividing the net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period, less the weighted-average unvested common stock subject to repurchase. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including common stock issuable upon conversion of the redeemable convertible preferred stock, outstanding share-based awards, and outstanding warrants, to the extent dilutive. Basic and diluted net loss per share was the same for each period presented as the inclusion of all potential common stock outstanding would have been anti-dilutive.
	The following table presents the calculation of basic and diluted net loss per share for the periods presented (in thousands, except per share data):
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
	Net loss	$	(21,743	)	$	(6,352	)	$	(32,003	)	$	(11,710	)
	Less: Accretion of redeemable convertible preferred stock		(6	)		(12	)		(18	)		(24	)
	Net loss attributable to common stockholders	$	(21,749	)	$	(6,364	)	$	(32,021	)	$	(11,734	)
	Basic shares:
	Weighted-average shares used to compute basic net loss per share		45,760			21,568			33,817			21,213
	Diluted shares:
	Weighted-average shares used to compute diluted net loss per share		45,760			21,568			33,817			21,213
	Net loss per share attributable to common stockholders:
	Basic and diluted	$	(0.48	)	$	(0.30	)	$	(0.95	)	$	(0.55	)
	The anti-dilutive securities excluded from the shares used to calculate the diluted net loss per share were as follows (in thousands):
		As of June 30,
		2014			2013
	Redeemable convertible preferred stock		—			34,323
	Shares subject to outstanding common stock options		14,355			9,375
	Shares subject to common stock warrants		—			125
	Restricted stock units		2,376			498
			16,731			44,321

Income_Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2014
Income Taxes	'
	Note 10. Income Taxes
	The effective tax rates for the three and six months ended June 30, 2014 were less than one percent primarily as a result of the estimated tax loss for the fiscal year. Our current tax expense relates to state minimum taxes and foreign income taxes associated with our non-U.S. operations. There were no material changes to the unrecognized tax benefits in the three and six months ended June 30, 2014.

Geographic_Information

Geographic Information	6 Months Ended
	Jun. 30, 2014
Geographic Information	'
	Note 11. Geographic Information
	Our chief operating decision maker reviews the financial information presented on a consolidated basis for purposes of allocating resources and evaluating our financial performance. Accordingly, we have determined that we operate in a single reporting segment.
	Revenue
	The following table presents our revenue by geographic areas, as determined based on the billing address of our customers (in thousands):
		Three Month Ended June 30,				Six Months Ended June 30,
		2014		2013		2014		2013
	United States	$	16,858	$	9,512	$	31,743	$	17,568
	EMEA		8,241		4,443		14,861		8,243
	Other		4,407		2,441		7,994		4,496
	Total	$	29,506	$	16,396	$	54,598	$	30,307
	Long-Lived Assets
	The following table presents our long-lived assets by geographic areas (in thousands):
		June 30,		December 31,
		2014		2013
	United States	$	23,079	$	6,466
	EMEA		4,574		2,054
	Other		396		135
	Total	$	28,049	$	8,655
	The carrying value of capitalized internal-use software and intangible assets is excluded from the balance of long-lived assets presented in the table above.

Overview_and_Basis_of_Presenta1

Overview and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2014
Use of Estimates	'
	Use of Estimates
	The preparation of consolidated financial statements in conformity with GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reported periods. Significant items subject to such estimates and assumptions include the fair value of share-based awards, fair value of acquired intangible assets, goodwill, unrecognized tax benefits, useful lives of intangible assets and property and equipment, and the capitalization and estimated useful life of our capitalized internal-use software.
	These estimates are based on information available as of the date of the financial statements; therefore, actual results could differ from those estimates.
Recently Issued and Adopted Accounting Pronouncements	'
	Recently Issued and Adopted Accounting Pronouncements
	On May 28, 2014, the FASB issued ASU 2014-09 regarding ASC Topic 606 “Revenue from Contracts with Customers.” This ASU provides principles for recognizing revenue to which an entity expects to be entitled for the transfer of promised goods or services to customers. This ASU will be effective for our fiscal year beginning January 1, 2017. Early adoption is not permitted.  We are currently evaluating the accounting, transition and disclosure requirements of the standard and cannot currently estimate the financial statement impact of adoption.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2014
Assets Measured at Fair Value on Recurring Basis	'
	The following tables present information about our financial assets measured at fair value on a recurring basis as of June 30, 2014 and December 31, 2013 based on the three-tier fair value hierarchy (in thousands):
		Fair Value Measurement at
		30-Jun-14
		Level 1		Level 2		Total
	Description
	U.S. corporate securities	$	—	$	12,194	$	12,194
	Money market funds		10,799		—		10,799
	Total	$	10,799	$	12,194	$	22,993
	Included in cash and cash equivalents					$	10,799
	Included in marketable securities					$	12,194
		Fair Value Measurement at
		31-Dec-13
		Level 1		Level 2		Total
	Description
	U.S. corporate securities	$	—	$	12,114	$	12,114
	Money market funds		10,836		—		10,836
	Total	$	10,836	$	12,114	$	22,950
	Included in cash and cash equivalents					$	10,836
	Included in marketable securities					$	12,114
Schedule of Available for Sale Marketable Securities Classified by Contractual Maturities	'
	The following table classifies our available-for-sale marketable securities by contractual maturities as of June 30, 2014 and December 31, 2013 (in thousands):
		June 30,		December 31,
		2014		2013
	Due in one year	$	9,430	$	9,889
	Due in one to five years		2,764		2,225
	Total	$	12,194	$	12,114

Property_and_Equipment_Tables

Property and Equipment (Tables)	6 Months Ended
	Jun. 30, 2014
Components of Property and Equipment	'
	Property and equipment, net consists of the following (in thousands):
		June 30,			December 31,
		2014			2013
	Capitalized internal-use software	$	13,119		$	11,104
	Furniture and fixtures		4,156			1,383
	Hosting equipment		11,630			7,931
	Computer equipment and software		3,583			1,680
	Leasehold improvements		12,438			1,717
	Construction in progress		6,014			341
	Total		50,940			24,156
	Less accumulated depreciation and amortization		(12,780	)		(8,725	)
	Property and equipment, net	$	38,160		$	15,431

Goodwill_and_Purchased_Intangi1

Goodwill and Purchased Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2014
Summary of Intangible Assets Acquired	'
	Purchased intangible assets subject to amortization as of June 30, 2014 consisted of the following (in thousands). No purchased intangible assets were recorded as of December 31, 2013.
		Cost		Accumulated			Net		Remaining Useful Life
				Amortization
									(In years)
	Developed technology	$	5,308	$	(420	)	$	4,888		3.2
	Customer relationship		1,327		(92	)		1,235		3.7
	Trade name		61		(17	)		44		0.7
		$	6,696	$	(529	)	$	6,167
Summary of Estimated Future Amortization Expense	'
	Estimated future amortization expense as of June 30, 2014 is as follows (in thousands):
	Remainder of 2014	$	963
	2015		1,862
	2016		1,854
	2017		1,418
	2018		70
	2019 and thereafter		—
		$	6,167

Credit_Facility_Tables

Credit Facility (Tables)	6 Months Ended
	Jun. 30, 2014
Schedule of Contractual Future Principal Repayments in Relation to Credit Facility	'
	Contractual future principal repayments in relation to the credit facility are as follows for the year ending December 31 (in thousands):
	2014 (remaining 6 months)	$	749
	2015		3,041
	2016		3,118
	2017		792
	2018 and thereafter		—
		$	7,700

Common_Stock_and_Stockholders_1

Common Stock and Stockholders' Equity (Deficit) (Tables)	6 Months Ended
	Jun. 30, 2014
Summary of Stock Option and RSU Award Activity	'
	The following table summarizes our stock option and RSU award activities for the six months ended June 30, 2014 (in thousands, except per share information):
					Options Outstanding									RSUs Outstanding
										Weighted
										Average							Weighted
		Shares						Weighted		Remaining		Aggregate					Average
		Available			Number of			Average		Contractual		Intrinsic		Outstanding			Grant Date
		for Grant			Shares			Exercise Price		Term		Value		RSUs			Fair Value
										(In years)
	Outstanding — January 1, 2014		1,854			10,134		$	2.82						811		$	6.76
	Increase in authorized shares		13,750
	Stock options granted		(5,468	)		5,468			9.64
	RSUs granted		(1,897	)											1,897			11.45
	Stock options exercised		—			(893	)		2.94
	RSUs vested		—												(150	)		7.77
	Stock options forfeited or canceled		354			(354	)		4.4
	RSUs forfeited or cancelled		182			—			—						(182	)		7.64
	Outstanding — June 30, 2014		8,775			14,355		$	5.38		8.41	$	172,283		2,376		$	10.37

Net_Loss_per_Share_Tables

Net Loss per Share (Tables)	6 Months Ended
	Jun. 30, 2014
Schedule of Computation of Basic and Diluted Net Loss per Share	'
	The following table presents the calculation of basic and diluted net loss per share for the periods presented (in thousands, except per share data):
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
	Net loss	$	(21,743	)	$	(6,352	)	$	(32,003	)	$	(11,710	)
	Less: Accretion of redeemable convertible preferred stock		(6	)		(12	)		(18	)		(24	)
	Net loss attributable to common stockholders	$	(21,749	)	$	(6,364	)	$	(32,021	)	$	(11,734	)
	Basic shares:
	Weighted-average shares used to compute basic net loss per share		45,760			21,568			33,817			21,213
	Diluted shares:
	Weighted-average shares used to compute diluted net loss per share		45,760			21,568			33,817			21,213
	Net loss per share attributable to common stockholders:
	Basic and diluted	$	(0.48	)	$	(0.30	)	$	(0.95	)	$	(0.55	)
Schedule of Anti-Dilutive Securities Excluded from the Diluted per Share Calculation	'
	The anti-dilutive securities excluded from the shares used to calculate the diluted net loss per share were as follows (in thousands):
		As of June 30,
		2014			2013
	Redeemable convertible preferred stock		—			34,323
	Shares subject to outstanding common stock options		14,355			9,375
	Shares subject to common stock warrants		—			125
	Restricted stock units		2,376			498
			16,731			44,321

Geographic_Information_Tables

Geographic Information (Tables)	6 Months Ended
	Jun. 30, 2014
Schedule of Revenue by Geographic Areas	'
	The following table presents our revenue by geographic areas, as determined based on the billing address of our customers (in thousands):
		Three Month Ended June 30,				Six Months Ended June 30,
		2014		2013		2014		2013
	United States	$	16,858	$	9,512	$	31,743	$	17,568
	EMEA		8,241		4,443		14,861		8,243
	Other		4,407		2,441		7,994		4,496
	Total	$	29,506	$	16,396	$	54,598	$	30,307
Schedule of Long-Lived Assets by Geographic Areas	'
	The following table presents our long-lived assets by geographic areas (in thousands):
		June 30,		December 31,
		2014		2013
	United States	$	23,079	$	6,466
	EMEA		4,574		2,054
	Other		396		135
	Total	$	28,049	$	8,655

Overview_and_Basis_of_Presenta2

Overview and Basis of Presentation - Additional Information (Details) (USD $)	1 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended			1 Months Ended
Share data in Millions, except Per Share data, unless otherwise specified	31-May-14	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	31-May-14
			Performance Awards	Performance Awards	Performance Awards	Performance Awards	IPO
					Minimum	Maximum
Overview And Basis Of Presentation [Line Items]	'	'	'	'	'	'	'
Year founded	'	'2007	'	'	'	'	'
Reincorporated date	'	'2009-04	'	'	'	'	'
Shares of common stock sold in initial public offering	'	'	'	'	'	'	12.8
Initial public offering share price	'	$17.38	'	'	'	'	$9
Proceeds from initial public offering, net of underwriting discounts and commissions and other offering expenses	$103,100,000	$104,377,000	'	'	'	'	'
Underwriting discounts and commission on IPO	8,100,000	'	'	'	'	'	'
Offering expenses	3,800,000	'	'	'	'	'	'
Number of shares of common stock issued upon automatic conversion of convertible preferred stock	34.3	34.3	'	'	'	'	'
Future period share-based compensation expense	'	63,800,000	'	'	'	'	'
Future period share-based compensation expense, period to recognized	'	'3 years 8 months 12 days	'	'	'	'	'
Service condition for performance awards	'	'	'	'	'3 years	'4 years	'
Share-based compensation expense	'	'	$6,100,000	$6,100,000	'	'	'

Acquisition_Additional_Informa

Acquisition - Additional Information (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Mar. 21, 2014	Mar. 21, 2014	Mar. 21, 2014	Mar. 21, 2014	Mar. 21, 2014
In Millions, unless otherwise specified			Zopim	Zopim	Zopim	Zopim	Zopim
				Common Stock Consideration	Cash	Minimum	Maximum
Business Acquisition [Line Items]	'	'	'	'	'	'	'
Adjustments to the preliminary purchase price allocation	'	'	$0.20	'	'	'	'
Business acquisition, fair value of consideration transferred	'	'	15.8	'	'	'	'
Business acquisition, fair value of consideration transferred, cash	'	'	4.9	'	'	'	'
Business acquisition, fair value of consideration transferred, common stock	'	'	10.9	'	'	'	'
Cash portion of fair value consideration transferred	'	'	'	2.4	1.1	'	'
Number of months that cash and shares were held back	'	'	'	'	'	'12 months	'18 months
Business acquisition, goodwill	9.8	0	9.6	'	'	'	'
Business acquisition, identifiable intangible assets	'	'	6.6	'	'	'	'
Business acquisition liabilities assumed, net	'	'	0.4	'	'	'	'
RSUs issued pursuant to retention plan, in connection with the acquisition	'	'	0.9	'	'	'	'
Cash to be pay pursuant to retention plan, in connection with the acquisition	'	'	$3	'	'	'	'

Fair_Value_Measurements_Financ

Fair Value Measurements - Financial Assets Measured at Fair Value on Recurring Basis (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Total fair value of financial assets	$22,993	$22,950
Included in cash and cash equivalents	10,799	10,836
Included in marketable securities	12,194	12,114
Level 1	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Total fair value of financial assets	10,799	10,836
Level 2	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Total fair value of financial assets	12,194	12,114
U.S. corporate debt securities	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Total fair value of financial assets	12,194	12,114
U.S. corporate debt securities | Level 2	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Total fair value of financial assets	12,194	12,114
Money market funds	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Total fair value of financial assets	10,799	10,836
Money market funds | Level 1	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Total fair value of financial assets	$10,799	$10,836

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Details) (USD $)	6 Months Ended
	Jun. 30, 2014
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'
Gross unrealized gains or losses for cash equivalent and available for sale marketable securities	'
Securities that were in an unrealized loss position for more than 12 months.	$0

Fair_Value_Measurements_Market

Fair Value Measurements - Marketable Securities Available for Sale by Contractual Maturities (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'	'
Due in one year	$9,430	$9,889
Due in one to five years	2,764	2,225
Total	$12,194	$12,114

Property_and_Equipment_Compone

Property and Equipment - Components of Property and Equipment (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property Plant And Equipment [Line Items]	'	'
Property and equipment, gross	$50,940	$24,156
Less accumulated depreciation and amortization	-12,780	-8,725
Property and equipment, net	38,160	15,431
Capitalized Internal-Use Software	'	'
Property Plant And Equipment [Line Items]	'	'
Property and equipment, gross	13,119	11,104
Furniture and Fixtures	'	'
Property Plant And Equipment [Line Items]	'	'
Property and equipment, gross	4,156	1,383
Hosting Equipment	'	'
Property Plant And Equipment [Line Items]	'	'
Property and equipment, gross	11,630	7,931
Computer Equipment and Software	'	'
Property Plant And Equipment [Line Items]	'	'
Property and equipment, gross	3,583	1,680
Leasehold Improvements	'	'
Property Plant And Equipment [Line Items]	'	'
Property and equipment, gross	12,438	1,717
Construction in Progress	'	'
Property Plant And Equipment [Line Items]	'	'
Property and equipment, gross	$6,014	$341

Property_and_Equipment_Additio

Property and Equipment - Additional Information (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Property Plant And Equipment [Line Items]	'	'	'	'	'
Depreciation expense	$1,200,000	$700,000	$2,300,000	$1,100,000	'
Capitalized internal-use software	3,200,000	1,300,000	5,000,000	2,400,000	'
Share-based compensation capitalized in internal-use software development costs	1,100,000	100,000	1,125,000	85,000	'
Amortization expense of capitalized internal-use software	1,000,000	500,000	1,700,000	1,000,000	'
Carrying value of capitalized internal-use software	10,200,000	'	10,200,000	'	6,800,000
Construction in progress	$3,400,000	'	$3,400,000	'	$300,000

Goodwill_and_Purchased_Intangi2

Goodwill and Purchased Intangible Assets - Additional Information (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Finite Lived Intangible Assets [Line Items]	'	'	'	'	'
Goodwill	$9,800,000	'	$9,800,000	'	$0
Cost	6,696,000	'	6,696,000	'	0
Amortization expense	$500,000	$0	$500,000	$0	'

Goodwill_and_Purchased_Intangi3

Goodwill and Purchased Intangible Assets - Summary of Intangible Assets Acquired (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014
In Thousands, unless otherwise specified			Developed Technology	Customer Relationships	Trade Name
Finite Lived Intangible Assets [Line Items]	'	'	'	'	'
Cost	$6,696	$0	$5,308	$1,327	$61
Accumulated Amortization	-529	'	-420	-92	-17
Net	$6,167	'	$4,888	$1,235	$44
Remaining Useful Life	'	'	'3 years 2 months 12 days	'3 years 8 months 12 days	'8 months 12 days

Goodwill_and_Purchased_Intangi4

Goodwill and Purchased Intangible Assets - Summary of Estimated Future Amortization Expense (Details) (USD $)	Jun. 30, 2014
In Thousands, unless otherwise specified
Finite Lived Intangible Assets [Line Items]	'
Remainder of 2014	$963
2015	1,862
2016	1,854
2017	1,418
2018	70
2019 and thereafter	'
Net	$6,167

Credit_Facility_Additional_Inf

Credit Facility - Additional Information (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Line Of Credit Facility [Line Items]	'	'
Percentage of equity pledged in international subsidiaries as collateral	65.00%	'
Silicon Valley Bank | Revolving Line of Credit	'	'
Line Of Credit Facility [Line Items]	'	'
Credit facility	$20	'
Line of credit outstanding amount	0	20
Percentage of interest rate above the prime rate	2.00%	'
Silicon Valley Bank | Equipment Line of Credit	'	'
Line Of Credit Facility [Line Items]	'	'
Credit facility	10	'
Line of credit outstanding amount	$7.70	$3.80
Credit facility interest rate	2.50%	'
Credit facility, outstanding balance payable period	'30 months	'
Credit facility, frequency of payment and payment terms	'The outstanding balance as of September 14, 2014 will be payable in equal monthly installments for 30 months thereafter, with the last payment due on March 14, 2017.	'
Percentage of final payment on principal amount	4.00%	'

Credit_Facility_Schedule_of_Co

Credit Facility - Schedule of Contractual Future Principal Repayments in Relation to Credit Facility (Details) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Line Of Credit Facility [Line Items]	'
2014 (remaining 6 months)	$749
2015	3,041
2016	3,118
2017	792
2018 and thereafter	'
Contractual future principal repayments, Total	$7,700

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Loss Contingencies [Line Items]	'	'	'	'	'
Rent expense	$1,800,000	$500,000	$3,500,000	$900,000	'
Deferred rent	6,600,000	'	6,600,000	'	1,000,000
Capital lease expiration date	'	'	31-Mar-15	'	'
Current portion of capital leases	195,000	'	195,000	'	364,000
Accumulated depreciation on leased assets	$800,000	'	$800,000	'	$700,000

Common_Stock_and_Stockholders_2

Common Stock and Stockholders' Equity (Deficit) - Additional Information (Details) (USD $)	1 Months Ended		6 Months Ended		0 Months Ended	6 Months Ended
In Millions, except Share data, unless otherwise specified	31-May-14	Apr. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	14-May-14	Jun. 30, 2014
					Employee Stock Purchase Plan	2014 Stock Option and Grant Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'	'	'
Number of shares of common stock issued upon conversion of convertible preferred stock	34,300,000	'	34,300,000	'	'	'
Reverse stock split of common stock	'	0.5	'	'	'	'
Common stock, shares authorized	'	'	400,000,000	125,000,000	'	'
Common stock, par value	'	'	$0.01	$0.01	'	'
Share-based compensation, initial reserves and authorized shares of common stock	'	'	'	'	3,600,000	7,500,000
Shares reserved and available for issuance under the plan, automatically increase each January	'	'	'	'	1,500,000	'
Share-based compensation, increase in number of shares reserved and available for issuance as percentage of shares issued and outstanding	'	'	'	'	1.00%	5.00%
Share-based compensation, number of shares available for grant	'	'	8,775,000	1,854,000	'	8,300,000
Closing stock price of aggregate intrinsic value	'	'	$17.38	'	'	'
Shares outstanding as a result of early exercise of stock options and purchase of unvested stock awards	'	'	800,000	800,000	'	'
Accrued liability for shares outstanding as a result of early exercise of stock options and purchase of unvested stock awards	'	'	$2.80	$1.40	'	'
Payments for repurchase of common stock	'	'	$0	'	'	'

Common_Stock_and_Stockholders_3

Common Stock and Stockholders' Equity (Deficit) - Summary of Stock Option and RSU Award Activity (Details) (USD $)	6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014
Shares Available for Grant	'
Balance at the beginning of the period	1,854
Increase in authorized shares	13,750
Stock options granted	-5,468
RSUs granted	-1,897
Stock options forfeited or canceled	354
RSUs forfeited or cancelled	182
Balance at the end of the period	8,775
Number of Shares	'
Balance at the beginning of the period	10,134
Stock options granted	5,468
Stock options exercised	-893
Stock options forfeited or canceled	-354
Balance at the end of the period	14,355
Weighted-Average Exercise Price	'
Balance at the beginning of the period	$2.82
Stock options granted	$9.64
Stock options exercised	$2.94
Stock options forfeited or canceled	$4.40
Balance at the end of the period	$5.38
Weighted Average Remaining Contractual Term	'
Options Outstanding, Weighted-average remaining contractual term	'8 years 4 months 28 days
Aggregate Intrinsic Value	'
Options Outstanding, Aggregate Intrinsic Value, Balance at end of period	$172,283
Outstanding RSUs	'
Balance at the beginning of the period	811
RSUs granted	1,897
RSUs vested	-150
RSUs forfeited or cancelled	-182
Balance at the end of the period	2,376
Weighted-Average Grant Date Fair Value	'
Balance at the beginning of the period	$6.76
RSUs granted	$11.45
RSUs vested	$7.77
RSUs forfeited or cancelled	$7.64
Balance at the end of the period	$10.37

Net_Loss_per_Share_Computation

Net Loss per Share - Computation of Basic and Diluted Net Loss per Share of Common Stock (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share Basic [Line Items]	'	'	'	'
Net loss	($21,743)	($6,352)	($32,003)	($11,710)
Accretion of redeemable convertible preferred stock	-6	-12	-18	-24
Net loss attributable to common stockholders	($21,749)	($6,364)	($32,021)	($11,734)
Basic shares:	'	'	'	'
Weighted-average shares used to compute basic net loss per share	45,760	21,568	33,817	21,213
Diluted shares:	'	'	'	'
Weighted-average shares used to compute diluted net loss per share	45,760	21,568	33,817	21,213
Net loss per share attributable to common stockholders:	'	'	'	'
Net loss per share attributable to common stockholders, basic and diluted	($0.48)	($0.30)	($0.95)	($0.55)

Net_Loss_per_Share_Schedule_of

Net Loss per Share - Schedule of Anti-Dilutive Securities Excluded from the Diluted per Share Calculation (Details)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share amount	16,731	44,321
Redeemable Convertible Preferred Stock	'	'
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share amount	'	34,323
Shares Subject to Outstanding Common Stock Options	'	'
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share amount	14,355	9,375
Shares subject to common stock warrants	'	'
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share amount	'	125
Restricted Stock Units	'	'
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share amount	2,376	498

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Details) (Maximum)	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014
Maximum	'	'
Schedule Of Effective Tax Rates [Line Items]	'	'
Effective income tax rate, percent	1.00%	1.00%

Geographic_Information_Schedul

Geographic Information - Schedule of Revenue by Geographic Areas (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues From External Customers And Long Lived Assets [Line Items]	'	'	'	'
Revenue	$29,506	$16,396	$54,598	$30,307
United States	'	'	'	'
Revenues From External Customers And Long Lived Assets [Line Items]	'	'	'	'
Revenue	16,858	9,512	31,743	17,568
EMEA	'	'	'	'
Revenues From External Customers And Long Lived Assets [Line Items]	'	'	'	'
Revenue	8,241	4,443	14,861	8,243
Other	'	'	'	'
Revenues From External Customers And Long Lived Assets [Line Items]	'	'	'	'
Revenue	$4,407	$2,441	$7,994	$4,496

Geographic_Information_Schedul1

Geographic Information - Schedule of Long-Lived Assets by Geographic Areas (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Revenues From External Customers And Long Lived Assets [Line Items]	'	'
Long-lived assets	$28,049	$8,655
United States	'	'
Revenues From External Customers And Long Lived Assets [Line Items]	'	'
Long-lived assets	23,079	6,466
EMEA	'	'
Revenues From External Customers And Long Lived Assets [Line Items]	'	'
Long-lived assets	4,574	2,054
Other	'	'
Revenues From External Customers And Long Lived Assets [Line Items]	'	'
Long-lived assets	$396	$135