Ellie Mae (ELLI) 10-Q 7 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 31, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'ELLIE MAE INC	'
Entity Central Index Key	'0001122388	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-13	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	27,496,655

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$21,651	$44,114
Available-for-sale Securities, Current	43,480	16,243
Accounts receivable, net of allowances for doubtful accounts of $133 and $74 as of September 30, 2013 and December 31, 2012, respectively	11,277	9,753
Prepaid expenses and other	7,635	2,956
Deferred tax assets	652	645
Note receivable	1,000	1,000
Total current assets	85,695	74,711
Property and equipment, net	12,621	9,494
Long-term investments	61,598	43,728
Other intangible assets, net	5,450	6,531
Goodwill	51,051	51,051
Deposits and other assets	2,019	100
Total assets	218,434	185,615
Current liabilities	'	'
Accounts payable	1,664	2,039
Accrued and other current liabilities	9,461	6,044
Acquisition holdback, net of discounts	1,952	2,948
Deferred revenue	4,157	4,896
Total current liabilities	17,234	15,927
Acquisition holdback, net of current portion and discount	0	1,911
Other long-term liabilities	955	915
Total liabilities	18,189	18,753
Commitments and contingencies (Note 7)	'	'
Stockholders' equity :	'	'
Common stock, $0.0001 par value per share; 140,000,000 authorized shares, 27,463,969 and 26,058,533 shares issued and outstanding as of September 30, 2013 and December 31, 2012, respectively	3	3
Additional paid-in capital	207,028	184,616
Accumulated Other Comprehensive Income (Loss), Net of Tax	-52	-65
Accumulated deficit	-6,734	-17,692
Total stockholders' equity	200,245	166,862
Total liabilities and stockholders' equity	$218,434	$185,615

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Accounts receivable, allowances for doubtful accounts	$133	$74
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	140,000,000	140,000,000
Common stock, shares issued	27,463,969	26,058,533
Common stock, shares outstanding	27,463,969	26,058,533

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]	'	'	'	'
Revenues	$33,006	$27,456	$98,131	$71,931
Cost of revenues	8,332	6,049	24,550	16,589
Gross profit	24,674	21,407	73,581	55,342
Operating expenses:	'	'	'	'
Sales and marketing	5,163	4,347	15,233	12,579
Research and development	6,573	4,756	18,651	13,188
General and administrative	7,547	6,023	23,108	14,195
Total operating expenses	19,283	15,126	56,992	39,962
Income (loss) from operations	5,391	6,281	16,589	15,380
Other income (expense), net	83	23	355	-15
Income (loss) before income taxes	5,474	6,304	16,944	15,365
Income tax benefit	2,114	-525	5,986	-105
Net income	3,360	6,829	10,958	15,470
Net income per share of common stock:	'	'	'	'
Basic	$0.13	$0.27	$0.41	$0.68
Diluted	$0.12	$0.25	$0.39	$0.63
Weighted average common shares used in computing net income per share of common stock:	'	'	'	'
Basic	26,681,974	25,201,404	26,407,572	22,747,911
Diluted	28,623,092	27,408,711	28,330,521	24,483,578
Net income	3,360	6,829	10,958	15,470
Unrealized Gain (Loss) on Investments	137	0	13	0
Comprehensive income	$3,497	$6,829	$10,971	$15,470

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'
Net income	$10,958	$15,470
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	3,515	2,257
Provision for uncollectible accounts receivable	81	52
Amortization of other intangible assets	1,081	1,226
Amortization of discount related to holdback	93	152
Stock-based compensation	10,894	3,643
Gain (Loss) on Sale of Property Plant Equipment	0	-20
Excess tax benefit from exercise of stock options	-6,187	-1,191
Deferred Income Tax Expense (Benefit)	-679	-654
Amortization of Debt Discount (Premium)	1,232	0
Changes in operating assets and liabilities:	'	'
Accounts receivable	-1,605	-3,731
Prepaid expenses and other	1,800	-2,933
Deposits and other assets	-1,195	0
Accounts payable	-849	-805
Accrued and other liabilities	2,564	3,364
Deferred revenue	-725	-49
Net cash provided by operating activities	20,978	16,821
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Acquisition of property and equipment	-5,034	-5,744
Proceeds from Sale of Other Property, Plant, and Equipment	0	10
Purchase of short-term investments	-91,297	-5,406
Maturities of short-term investments	44,971	3,781
Payment of holdback from acquisition	-3,000	-2,907
Payments for (Proceeds from) Other Investing Activities	0	-3
Net cash used in investing activities	-54,360	-10,263
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'
Proceeds from Issuance Initial Public Offering	0	55,821
Payment of capital lease obligations	-509	-5
Proceeds from Issuance of Common Stock	5,342	3,009
Payments Related to Tax Withholding for Share-based Compensation	-101	0
Excess tax benefits from exercise of stock options	-6,187	-1,191
Net cash provided by financing activities	10,919	60,016
NET INCREASE IN CASH AND CASH EQUIVALENTS	-22,463	66,574
CASH AND CASH EQUIVALENTS, Beginning of period	44,114	23,732
CASH AND CASH EQUIVALENTS, End of period	21,651	90,306
Supplemental disclosure of non-cash investing and financing activities:	'	'
Property and equipment purchases not yet paid	-522	-151
Noncash or Part Noncash Acquisition, Fixed Assets Acquired	1,336	0
Deferred Offering Costs Not Yet Paid	0	290
Supplemental Cash Flow Information [Abstract]	'	'
Interest Paid	241	53
Income Taxes Paid	$3,324	$175

Description_of_Business

Description of Business	9 Months Ended
	Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Description of Business	'
	Description of Business
	Ellie Mae, Inc. (“Ellie Mae,” “the Company,” “we,” “our” or “us”) is a leading provider of on-demand automation solutions for the residential mortgage industry in the United States. Our on-demand, technology-enabled software solutions help streamline and automate the process of originating and funding new mortgage loans, thereby increasing efficiency, facilitating regulatory compliance and reducing documentation errors.

Basis_of_Presentation_and_Sign

Basis of Presentation and Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Presentation and Significant Accounting Policies	'
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2012, which was filed with the SEC on March 1, 2013 (“2012 Form 10-K”).
	The condensed consolidated balance sheet as of December 31, 2012, included herein, was derived from the audited financial statements as of that date but does not include all disclosures, including notes required by GAAP.
	In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial positions, results of operations and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year 2013 or any future period.
	Principles of Consolidation
	The condensed consolidated financial statements include the accounts of Ellie Mae and our wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated.
	Use of Estimates
	The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
	Significant Accounting Policies
	Our significant accounting policies are described in Note 2 of the Notes to Consolidated Financial Statements in our 2012 Form 10-K. There have been no significant changes to these policies except as noted below.
	Deferred Commission Expense
	Deferred commission expenses are the incremental costs that are directly associated with non-cancelable subscription contracts with customers and consist of sales commissions paid to our direct sales force. Commissions are calculated based on a percentage of the revenues for the non-cancelable term of subscription contracts, which are typically one to five years.
	Prior to 2013, commissions were paid and recognized as sales expense when customer payments for contracted services were received on a monthly basis because commissions were earned based on receipt of customer payments. In 2013, we amended our commission plans to provide for payment after the customer's contract is signed. As a result of the change in commission plans, beginning in 2013, commission expense is deferred and amortized to sales expense over the non-cancelable terms of the related subscription contracts. The deferred commission expense amounts are recoverable through the future revenue streams under the non-cancelable customer contracts. The new plans also include claw back provisions, which require repayment of a proportionate amount of commissions, should customers cancel their contracts prior to the end of the initial contractual term.
	During nine months ended September 30, 2013, we deferred $1.4 million of commission expense, of which $1.2 million remained on our condensed consolidated balance sheets at September 30, 2013. No amounts were deferred as of December 31, 2012.
	Comprehensive Income
	Comprehensive income consists of net income and other comprehensive gain (loss). Other comprehensive gain (loss) includes certain changes in equity that are excluded from net income, specifically unrealized gains and losses on available-for-sale investments. There were no reclassifications out of accumulated other comprehensive income (“AOCI”) that affected net income during the three and nine months ended September 30, 2013 and 2012.
	Recent Accounting Pronouncements
	In February 2013, the Financial Accounting Standards Board (“FASB”) issued an amendment to Accounting Standards Codification Topic 220, Comprehensive Income, in Accounting Standards Update (“ASU”) 2013-02. Under ASU 2013-02, an entity must make new disclosures for changes in AOCI balances by component as well as significant items reclassified out of AOCI. We adopted ASU 2013-02 on January 1, 2013 and this adoption did not have a material impact on our consolidated financial statements.
	In July 2013, the FASB issued ASU No. 2013-11, Topic 740 - Income Taxes (“ASU 2013-11”) which provides guidance to improve the presentation of an unrecognized benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. ASU 2013-11 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. We intend to adopt this standard in the first fiscal quarter of 2014 and do not expect the adoption will have a material impact on our consolidated financial statements.

Net_Income_Loss_Per_Share_of_C

Net Income (Loss) Per Share of Common Stock	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Net Income (Loss) Per Share of Common Stock	'
	Net income per share of common stock is calculated by dividing net income by the weighted average shares of common stock outstanding during the period. Diluted net income per share of common stock is calculated by dividing net income by the weighted average shares of common stock outstanding and potential shares of common stock during the period. Potential shares of common stock include shares attributable to the assumed exercise of stock options, restricted stock unit awards (“RSUs”), performance share awards (“Performance Awards”) and Employee Stock Purchase Plan (“ESPP”) shares using the treasury stock method, if dilutive.
	The components of net income per share of common stock were as follows:
		Three months ended September 30,						Nine months ended September 30,
		2013			2012			2013		2012
		(in thousands, except share and per share amounts)
	Net income	$	3,360		$	6,829		$	10,958	$	15,470
	Basic shares:
	Weighted average common shares outstanding	26,681,974			25,201,404			26,407,572		22,747,911
	Diluted shares:
	Weighted average shares used to compute basic net income per share	26,681,974			25,201,404			26,407,572		22,747,911
	Effect of potentially dilutive securities:
	Employee stock options, RSUs, Performance Awards and ESPP shares	1,941,118			2,207,307			1,922,949		1,735,667
	Weighted average shares used to compute diluted net income per share	28,623,092			27,408,711			28,330,521		24,483,578
	Net income per share:
	Basic	$	0.13		$	0.27		$	0.41	$	0.68
	Diluted	$	0.12		$	0.25		$	0.39	$	0.63
	The following potential common shares were excluded from the computation of diluted net income per share, as their effect would have been anti-dilutive:
		Three months ended September 30,					Nine months ended September 30,
		2013		2012			2013		2012
	Employee stock options and awards	826,879		158,266			681,394		175,104
	Performance Awards are included in the diluted shares outstanding for each period if the established performance criteria have been met at the end of the respective periods. However, if none of the required performance criteria have been met for such awards, we include the number of shares that would be issuable if the end of the reporting period were the end of the contingency period. Accordingly, in addition to the employee stock options and awards noted above, 124,300 and 721,333 shares underlying Performance Awards have been excluded from the dilutive shares outstanding for each of the three and nine months ended September 30, 2013 and 2012, respectively.

Financial_Instruments_and_Fair

Financial Instruments and Fair Value Measurements	9 Months Ended
	Sep. 30, 2013
Financial Instruments and Fair Value Measurements [Abstract]	'
Financial Instruments and Fair Value Measurements	'
	Fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements are classified and disclosed in one of the following three categories:
	Level 1— Valuations based on quoted prices in active markets for identical assets or liabilities.
	Level 2— Valuations based on other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
	Level 3— Valuations based on inputs that are generally unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the assets or liabilities.
	The following tables set forth by level within the fair value hierarchy our financial assets that were accounted for at fair value on a recurring basis, according to the valuation techniques we used to determine their values:
		Fair value at		Fair value measurements
				using inputs considered as
		September 30, 2013		Level 1			Level 2		Level 3
		(in thousands)
	Money market funds	$	13,917	$	13,917		$	—	$	—
	Certificates of deposit	13,677		—			13,677		—
	Corporate notes and obligations	29,713		—			29,713		—
	Municipal obligations	4,483		—			4,483		—
	U.S. government and government agency obligations	60,092		13,211			46,881		—
		$	121,882	$	27,128		$	94,754	$	—
		Fair value at		Fair value measurements
				using inputs considered as
		December 31, 2012		Level 1			Level 2		Level 3
		(in thousands)
	Money market funds	$	36,453	$	36,453		$	—	$	—
	Corporate notes and obligations	39,148		—			39,148		—
	Municipal obligations	6,230		—			6,230		—
	U.S. government and government agency obligations	15,048		4,711			10,337		—
		$	96,879	$	41,164		$	55,715	$	—
	Financial instruments include cash, cash equivalents and investments including investment-grade interest-bearing securities such as money market accounts, certificates of deposit, commercial paper, corporate bonds, municipal and government agency obligations and guaranteed obligations of the U.S. government. We classify our money market funds and U.S. government obligations as Level 1 instruments due to the use of observable market prices for identical securities that are traded in active markets.
	When we use observable market prices for identical securities that are traded in less active markets, we classify our marketable financial instruments as Level 2. When observable market prices for identical securities are not available, we price our marketable financial instruments using non-binding market consensus prices that are corroborated with observable market data; quoted market prices for similar instruments; or pricing models with all significant inputs derived from or corroborated with observable market data. Non-binding market consensus prices are based on the proprietary valuation models of pricing providers. These valuation models incorporate a number of inputs, including non-binding and binding broker quotes; observable market prices for identical or similar securities; and the internal assumptions of pricing providers or brokers that use observable market inputs and, to a lesser degree, unobservable market inputs. We corroborate non-binding market consensus prices with observable market data as such data exists.
	As of September 30, 2013 and December 31, 2012, we did not have any assets or liabilities that were valued using Level 3 inputs. For the three and nine months ended September 30, 2013 and 2012, there were no transfers of financial instruments among Level 1, Level 2 or Level 3 classifications.
	The carrying amounts and estimated fair value of cash and cash equivalents and both short and long-term investments consisted of the following:
		September 30, 2013
		Amortized		Unrealized			Carrying or
		cost		gains (losses)			fair value
		(in thousands)
	Cash and cash equivalents:
	Cash	$	4,848	$	—		$	4,848
	Money market funds	13,917		—			13,917
	U.S. government notes	2,000		—			2,000
	U.S. government agency securities	886		—			886
		$	21,651	$	—		$	21,651
	Short-term investments:
	Certificates of deposit	$	3,675	$	(4	)	$	3,671
	Corporate notes and obligations	13,675		4			13,679
	Municipal obligations	1,982		1			1,983
	U.S. government notes	4,055		3			4,058
	U.S. government agency securities	20,082		7			20,089
		$	43,469	$	11		$	43,480
	Long-term investments:
	Certificates of deposit	$	10,045	$	(39	)	$	10,006
	Corporate notes and obligations	16,046		(12		)	16,034
	Municipal obligations	2,499		1			2,500
	U.S. government notes	7,154		(1		)	7,153
	U.S. government agency securities	25,916		(11		)	25,905
		$	61,660	$	(62	)	$	61,598
		December 31, 2012
		Amortized		Unrealized			Carrying or
		cost		gains (losses)			fair value
		(in thousands)
	Cash and cash equivalents:
	Cash	$	7,206	$	—		$	7,206
	Money market funds	36,453		—			36,453
	Corporate notes and obligations	455		—			455
		$	44,114	$	—		$	44,114
	Short-term investments:
	Corporate notes and obligations	$	10,292	$	(5	)	$	10,287
Municipal obligations	2,829		(6		)	2,823
U.S. government agency securities	3,132		1			3,133
	$	16,253	$	(10	)	$	16,243
Long-term investments:
Corporate notes and obligations	$	28,462	$	(56	)	$	28,406
Municipal obligations	3,412		(5		)	3,407
U.S. government notes	4,710		1			4,711
U.S. government agency securities	7,199		5			7,204
	$	43,783	$	(55	)	$	43,728
The following table summarizes the maturities of our investments at September 30, 2013:
			Carrying or
			fair value
			(in thousands)
Remainder of 2013			$	7,170
2014			47,354
2015			40,656
2016			9,898
Total			$	105,078
Actual maturities may differ from the contractual maturities because borrowers may have the right to call or prepay certain obligations.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Other Intangible Assets	'
	There were no changes in the carrying value of goodwill during the three and nine months ended September 30, 2013.
	Other intangible assets, net, consisted of the following:
		September 30, 2013
		Gross carrying		Accumulated			Net intangibles		Weighted Average Remaining Useful Life
		amount		amortization
		(in thousands)							(in years)
	Developed technology	$	1,874	$	(1,417	)	$	457	1.5
	Trade names	260		(175		)	85		1.3
	Customer lists and contracts	7,300		(2,392		)	4,908		5.3
		$	9,434	$	(3,984	)	$	5,450	5
		December 31, 2012
		Gross carrying		Accumulated			Net intangibles		Weighted Average Remaining Useful Life
		amount		amortization
		(in thousands)							(in years)
	Developed technology	$	1,874	$	(1,170	)	$	704	2.2
	Trade names	260		(124		)	136		2
	Customer lists and contracts	7,300		(1,609		)	5,691		6
		$	9,434	$	(2,903	)	$	6,531	5.5
	Amortization expense associated with other intangible assets was $0.4 million and $1.1 million for the three and nine months ended September 30, 2013, respectively, and $0.4 million and $1.2 million for the three and nine months ended September 30, 2012, respectively. There was no impairment of intangible assets during the three and nine months ended September 30, 2013 and 2012.
	Minimum future amortization expense for other intangible assets at September 30, 2013 was as follows:
		Amortization
		(in thousands)
	Remainder of fiscal 2013	$	360
	2014	1,405
	2015	1,032
	2016	928
	2017	928
	2018	266
	Thereafter	531
		$	5,450

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	We compute our interim provision for income taxes by applying the estimated annual effective tax rate to the year-to-date income from recurring operations and adjust the provision for discrete tax items recorded in the period. We evaluate our effective income tax rate on a quarterly basis and update our estimated annual effective income tax rate as necessary. The estimated annual effective tax rate for the nine months ended September 30, 2013 and 2012 was 35.3% and (0.7)%, respectively.
	The difference between the federal statutory rate of 35% and our estimated annual effective tax rate for the nine months ended September 30, 2013 was primarily due to our blended state income tax rate, disqualifying dispositions of stock acquired through the exercise of incentive stock options or through our ESPP and the Section 162(m) limitation on the tax deduction for the annual compensation paid to our chief executive officer and the three other most highly paid executive officers, not including the chief financial officer (collectively the “Covered Employees”). The tax provision for the nine months ended September 30, 2013 included a discrete benefit item of $0.5 million related to 2012 federal research and development tax credit (net of uncertain tax benefit) that were retroactively reinstated by Congress in 2013.
	Our tax positions are subject to income tax audits by multiple tax jurisdictions. We account for uncertain tax positions and have a policy to classify accrued interest and penalties associated with uncertain tax positions together with the related liability in the balance sheet, and to include the expenses incurred related to such accruals in the provision for income taxes. We believe that we have provided adequate reserves for our unrecognized tax benefits and associated penalties and interest, if applicable, for all tax years still open for assessment.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Leases
	In January 2013, we entered into an agreement to lease additional office space at our corporate headquarters. The lease expires in April 2015 with payments of $20,000 per month over the term of the lease agreement. In April 2013, we entered into an agreement to finance the purchase of computer equipment with payments of $59,000 per month over the 23 month term of the agreement. In August 2013, we entered into an agreement to lease office space in Omaha, Nebraska that we are using as a product support center. The lease expires in December 2018 with payments ranging from $13,000 per month to $15,000 per month over the term of the lease agreement.
	Legal Proceedings
	On March 25, 2011, Industry Access Incorporated (“Industry Access”) filed a patent infringement lawsuit against us and another defendant in the U.S. District Court for the Central District of California. The complaint alleges, among other things, that certain aspects of our Encompass loan management software system and related operations infringe a single patent, and seeks declaratory relief and unspecified damages from the defendants, including enhanced damages for willful infringement and reasonable attorneys’ fees. On June 24, 2011, the Court issued an order requiring plaintiff to serve the complaint on all defendants within three days of the order. On June 28, 2011, plaintiff served us with the complaint and we filed its answer on August 5, 2011 denying all material allegations of the complaint. On November 18, 2011 the other defendant filed with the United States Patent and Trademark Office (the “PTO”) a request for ex parte reexamination of Industry Access’ US Patent No 7,769,681, which the PTO granted on February 14, 2012. On December 15, 2011, we filed a motion to stay the litigation pending the reexamination, which the Court granted on February 28, 2012. On October 9, 2012, the PTO issued the reexamination certificate. The Court granted a motion to dismiss the other defendant from this action on April 7, 2013 and lifted the stay on April 11, 2013.  The parties are in the claims construction phase of the litigation with a claim construction hearing scheduled for December 2, 2013. Discovery is ongoing and the trial has been rescheduled for December 2014 as further discussed below.
	On March 19, 2013, Industry Access filed a second patent infringement lawsuit against us in the U.S. District Court for the Central District of California.  The complaint alleges, among other things, that our Encompass loan management software system, including the Encompass software, the Ellie Mae Network, Encompass Originator, Encompass Compliance Service, Encompass CenterWise, Encompass Electronic Document Management, Encompass Docs Solution and Encompass Product and Pricing Service, infringes U.S. Patent Nos.  8,117,120 and 8,145,563, which are continuations of U.S. Patent No. 7,769,681, asserted in the lawsuit described above.  Plaintiff is seeking unspecified damages.  On June 12, 2013, we filed a motion to dismiss or, in the alternative, to transfer this case to the Northern District of California, which the Court denied on September 18, 2013. Trial is set for December 2014.
	On September 12, 2013, we filed a motion to relate and consolidate the two Industry Access lawsuits so that all of Industry Access’ related patent infringement claims would be heard before the same judge on the same schedule. Industry Access responded to this motion on October 11, 2013. The Court granted our motion to consolidate on October 31, 2013. Trial is set for December 2014.
	We believe that we have substantial and meritorious defenses in the newly consolidated case and, if similar claims are pursued, we intend to defend these and similar claims vigorously.
	We are also subject to various other legal proceedings and claims arising in the ordinary course of business. With respect to these matters and the litigations described above, we cannot predict the ultimate outcome of these legal proceedings and the amounts and ranges of potential damages associated with such proceedings cannot be estimated or assessed. An unfavorable outcome of these or the litigation could materially adversely affect our business, financial condition and results of operations.

Stock_Incentive_Plans

Stock Incentive Plans	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock Incentive Plans	'
	We recognize stock-based compensation related to awards granted under our 2009 Stock Option and Incentive Plan (the “2009 Plan”), 2011 Equity Incentive Award Plan (the “2011 Plan”) and ESPP.
	Total stock-based compensation expense recognized consisted of:
		Three months ended September 30,							Nine months ended September 30,
		2013			2012				2013				2012
		(in thousands)
	Cost of revenues	$	215		$	80			$	485			$	170
	Sales and marketing	322			85				709				256
	Research and development	948			532				2,575				915
	General and administrative	1,902			1,551				7,125				2,302
		$	3,387		$	2,248			$	10,894			$	3,643
	Capitalized stock-based compensation for the three and nine months ended September 30, 2013 and 2012 was not significant.
	2009 Stock Option and Incentive Plan and 2011 Equity Incentive Award Plan
	Stock Options
	The following table summarizes our stock option activity under the 2009 Plan and 2011 Plan:
		Number of		Weighted				Weighted		Aggregate
		Shares		Average				Average		Intrinsic
				Exercise				Remaining		Value
				Price				Contractual
								Term
								(in years)		(in thousands)
	Outstanding at January 1, 2013	3,461,255		$	7.19
	Granted	790,330		$	23.34
	Exercised	(698,800	)	$	4.89
	Forfeited or expired	(92,046	)	$	17.1
	Outstanding at September 30, 2013	3,460,739		$	11.08			7.46		$	72,442
	Ending vested and expected to vest at September 30, 2013	3,363,041		$	10.89			7.42		$	71,013
	Exercisable at September 30, 2013	1,709,944		$	6.39			6.15		$	43,804
	Stock options granted during the nine months ended September 30, 2013 were made under the 2011 Plan. There were no grants under the 2009 Plan during the nine months ended September 30, 2013.
	Intrinsic value of an option is the difference between the fair value of our common stock at the time of exercise and the exercise price to be paid. The aggregate intrinsic value for options outstanding at September 30, 2013 in the table above represents the total intrinsic value, based on our closing stock price of $32.01 as of September 30, 2013, which would have been received by option holders had all option holders exercised their in-the-money options as of that date. Options outstanding that are expected to vest are net of estimated future option forfeitures.
	Following is additional information pertaining to our stock option activity:
		Three months ended September 30,							Nine months ended September 30,
		2013			2012				2013				2012
		(in thousands, except
		per option amounts)
	Weighted average fair value per option granted	$	14.15		$	12.18			$	11.5			$	7.29
	Grant-date fair value of options vested	$	1,290		$	1,155			$	3,328			$	1,851
	Intrinsic value of options exercised	$	8,471		$	7,458			$	14,867			$	10,016
	Proceeds received from options exercised	$	2,378		$	927			$	3,420			$	2,266
	As of September 30, 2013, total unrecognized stock-based compensation expense related to unvested stock options, adjusted for estimated forfeitures, was $12.2 million and is expected to be recognized over a weighted average period of 2.6 years.
	Restricted Stock Units and Performance Awards
	In August 2012, we granted 147,000 Performance Awards (“2012 Performance Awards”) to designated participants under the 2011 Plan. The 2012 Performance Awards represented the right to receive up to 4 shares of our common stock per award upon achievement of certain performance goals during the performance period of July 1, 2012 through June 30, 2013. 588,000 shares of common stock earned under the 2012 Performance Awards were issued during the quarter ended September 30, 2013 after the Compensation Committee of the Board of Directors (“Compensation Committee”) determined our level of achievement of the performance goals (the “Determination Date”). Of the issued shares, 25% were vested upon issuance and the remaining shares will vest 25% on each of the first three anniversaries of the Determination Date, subject to the continuous employment of the participant through such dates.
	In February 2013, we granted 113,000 Performance Awards (“2013 Performance Awards”) to designated participants under the 2011 Plan. The 2013 Performance Awards represent the right to receive up to 2.5 shares of our common stock per award upon achievement of certain performance goals during the performance period of January 1, 2013 through December 31, 2013. Shares of common stock earned, if any, under the 2013 Performance Awards will be issued during the first quarter of 2014 after the Compensation Committee determines the level of achievement of the performance goals (the “2013 Award Determination Date”), with 25% of the shares to vest upon issuance and the remaining shares to vest 25% on each of the first three anniversaries of the 2013 Award Determination Date, subject to the continuous employment of each participant through such dates. As of September 30, 2013, we expect the performance goals will be achieved so that each award will convert to 1.1 shares of our common stock on the 2013 Award Determination Date. No forfeitures are expected.
	The following table summarizes our RSU and Performance Award activity:
		RSUs						Performance Awards
		Number of		Weighted				Number of			Weighted
		Shares		Average				Shares			Average
				Grant Date							Grant Date
				Fair Value							Fair Value
				Per Share							Per Share
	Outstanding at January 1, 2013	40,625		$	8.9			588,000			$	25.79
	Granted	273,669		24.9				124,300			19.6
	Released	(13,125	)	13.33				(147,000	)		25.79
	Forfeited or expired	(5,697	)	24.87				—			—
	Outstanding at September 30, 2013	295,472		$	23.22			565,300			$	24.43
	Ending vested and expected to vest at September 30, 2013	269,939						565,300
	RSUs and Performance Awards that are expected to vest are net of estimated future forfeitures. RSUs released during the nine months ended September 30, 2013 had an aggregate intrinsic value of $0.3 million and an aggregate grant-date fair value of $0.2 million. Performance Awards released during the nine months ended September 30, 2013 had an aggregate intrinsic value of $4.5 million and an aggregate grant-date fair value of $3.8 million. There were no RSUs or Performance Awards released during the nine months ended September 30, 2012. The number of RSUs released includes shares that we withheld on behalf of employees to satisfy the minimum statutory tax withholding requirements.
	As of September 30, 2013, total unrecognized compensation expense related to unvested RSUs and Performance Awards was $14.0 million and is expected to be recognized over a weighted average period of 2.5 years.
	Employee Stock Purchase Plan
	For the nine months ended September 30, 2013 and 2012, employees purchased 109,270 shares and 126,242 shares, respectively, under the ESPP for a total of $1.9 million and $0.7 million, respectively. As of September 30, 2013, unrecognized compensation expense related to the current ESPP period which ends on February 28, 2014 was $0.3 million and is expected to be recognized over five months.
	Valuation Information
	The fair value of stock options and stock purchase rights granted under the 2009 Plan, the 2011 Plan and the ESPP were estimated at the date of grant using the Black-Scholes option valuation model with the following weighted average assumptions:
		Three months ended September 30,					Nine months ended September 30,
		2013		2012			2013			2012
Stock option plans:
Risk-free interest rate	1.72	%	0.87	%		1.08	%		0.87	%
Expected life of options (in years)	6.08		6.08			6.08			6.08
Expected dividend yield	—	%	—	%		—	%		—	%
Volatility	52	%	52	%		52	%		55	%
Employee Stock Purchase Plan:
Risk-free interest rate	0.13	%	0.14	%		0.13	%		0.15	%
Expected life of options (in years)	0.5		0.5			0.5			0.5
Expected dividend yield	—	%	—	%		—	%		—	%
Volatility	36	%	37	%		37	%		43	%
Stock-based compensation expense during the three and nine months ended September 30, 2013 and 2012 was recorded net of estimated forfeiture rates of 4.4% and 4.1%, respectively.
Common Stock
The following numbers of shares of common stock were reserved and available for future issuance at September 30, 2013:
	Reserved
	Shares
Options and awards outstanding under stock incentive plans	4,321,511
Shares available for future grant under the stock incentive plan	2,080,132
Shares available under the Employee Stock Purchase Plan	852,392
Total	7,254,035
In January 2013, 260,585 additional shares were reserved under the ESPP and 1,302,926 additional shares were reserved under the 2011 Plan, pursuant to the automatic increase provisions in each plan.

Segment_Information

Segment Information	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Segment Information	'
	We operate in one industry—mortgage-related software and services. Our chief operating decision makers are our chief executive officer and president and chief operating officer, who make decisions about resource allocation and review financial information presented on a consolidated basis. Accordingly, we have determined that we have a single reporting segment and operating unit structure, specifically technology-enabled solutions to help streamline and automate the residential mortgage origination process for our network participants.
	We are organized primarily on the basis of service lines. Supplemental disclosure of revenues by type is as follows:
		Three months ended September 30,				Nine months ended September 30,
		2013		2012		2013		2012
		(in thousands)
	On-demand revenues	$	30,186	$	24,040	$	88,907	$	62,195
	On-premise revenues	2,820		3,416		9,224		9,736
		$	33,006	$	27,456	$	98,131	$	71,931

Subsequent_Events_Notes

Subsequent Events (Notes)	9 Months Ended
	Sep. 30, 2013
Subsequent Events [Abstract]	'
Subsequent Events [Text Block]	'
	In October 2013, we entered into an agreement to acquire substantially all the assets of ARG Interactive, LLC (dba MortgageCEO), a SaaS company specializing in customer relationship management and marketing solutions for the residential mortgage industry. The acquisition is expected to close by the end of 2013 and is subject to customary closing conditions.

Basis_of_Presentation_and_Sign1

Basis of Presentation and Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Principles of Consolidation [Policy Text Block]	'
	Principles of Consolidation
	The condensed consolidated financial statements include the accounts of Ellie Mae and our wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated.
Use of Estimates, Policy [Policy Text Block]	'
	Use of Estimates
	The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Deferred Commission Expense, Policy [Policy Text Block]	'
	Deferred Commission Expense
	Deferred commission expenses are the incremental costs that are directly associated with non-cancelable subscription contracts with customers and consist of sales commissions paid to our direct sales force. Commissions are calculated based on a percentage of the revenues for the non-cancelable term of subscription contracts, which are typically one to five years.
	Prior to 2013, commissions were paid and recognized as sales expense when customer payments for contracted services were received on a monthly basis because commissions were earned based on receipt of customer payments. In 2013, we amended our commission plans to provide for payment after the customer's contract is signed. As a result of the change in commission plans, beginning in 2013, commission expense is deferred and amortized to sales expense over the non-cancelable terms of the related subscription contracts. The deferred commission expense amounts are recoverable through the future revenue streams under the non-cancelable customer contracts. The new plans also include claw back provisions, which require repayment of a proportionate amount of commissions, should customers cancel their contracts prior to the end of the initial contractual term.
	During nine months ended September 30, 2013, we deferred $1.4 million of commission expense, of which $1.2 million remained on our condensed consolidated balance sheets at September 30, 2013.
Comprehensive Income [Policy Text Block]	'
	Comprehensive Income
	Comprehensive income consists of net income and other comprehensive gain (loss). Other comprehensive gain (loss) includes certain changes in equity that are excluded from net income, specifically unrealized gains and losses on available-for-sale investments. There were no reclassifications out of accumulated other comprehensive income (“AOCI”) that affected net income during the three and nine months ended September 30, 2013 and 2012.
New Accounting Pronouncements, Policy [Policy Text Block]	'
	Recent Accounting Pronouncements
	In February 2013, the Financial Accounting Standards Board (“FASB”) issued an amendment to Accounting Standards Codification Topic 220, Comprehensive Income, in Accounting Standards Update (“ASU”) 2013-02. Under ASU 2013-02, an entity must make new disclosures for changes in AOCI balances by component as well as significant items reclassified out of AOCI. We adopted ASU 2013-02 on January 1, 2013 and this adoption did not have a material impact on our consolidated financial statements.
	In July 2013, the FASB issued ASU No. 2013-11, Topic 740 - Income Taxes (“ASU 2013-11”) which provides guidance to improve the presentation of an unrecognized benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. ASU 2013-11 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. We intend to adopt this standard in the first fiscal quarter of 2014 and do not expect the adoption will have a material impact on our consolidated financial statements.

Net_Income_Loss_Per_Share_of_C1

Net Income (Loss) Per Share of Common Stock (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Components of net income (loss) per share of common stock	'
	The components of net income per share of common stock were as follows:
		Three months ended September 30,						Nine months ended September 30,
		2013			2012			2013		2012
		(in thousands, except share and per share amounts)
	Net income	$	3,360		$	6,829		$	10,958	$	15,470
	Basic shares:
	Weighted average common shares outstanding	26,681,974			25,201,404			26,407,572		22,747,911
	Diluted shares:
	Weighted average shares used to compute basic net income per share	26,681,974			25,201,404			26,407,572		22,747,911
	Effect of potentially dilutive securities:
	Employee stock options, RSUs, Performance Awards and ESPP shares	1,941,118			2,207,307			1,922,949		1,735,667
	Weighted average shares used to compute diluted net income per share	28,623,092			27,408,711			28,330,521		24,483,578
	Net income per share:
	Basic	$	0.13		$	0.27		$	0.41	$	0.68
	Diluted	$	0.12		$	0.25		$	0.39	$	0.63
Common shares excluded from computation of diluted net income (loss) per share	'
	The following potential common shares were excluded from the computation of diluted net income per share, as their effect would have been anti-dilutive:
		Three months ended September 30,					Nine months ended September 30,
		2013		2012			2013		2012
	Employee stock options and awards	826,879		158,266			681,394		175,104

Financial_Instruments_and_Fair1

Financial Instruments and Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2013
Financial Instruments and Fair Value Measurements [Abstract]	'
Fair value hierarchy of Company's financial assets on recurring basis	'
	The following tables set forth by level within the fair value hierarchy our financial assets that were accounted for at fair value on a recurring basis, according to the valuation techniques we used to determine their values:
		Fair value at		Fair value measurements
				using inputs considered as
		September 30, 2013		Level 1			Level 2		Level 3
		(in thousands)
	Money market funds	$	13,917	$	13,917		$	—	$	—
	Certificates of deposit	13,677		—			13,677		—
	Corporate notes and obligations	29,713		—			29,713		—
	Municipal obligations	4,483		—			4,483		—
	U.S. government and government agency obligations	60,092		13,211			46,881		—
		$	121,882	$	27,128		$	94,754	$	—
		Fair value at		Fair value measurements
				using inputs considered as
		December 31, 2012		Level 1			Level 2		Level 3
		(in thousands)
	Money market funds	$	36,453	$	36,453		$	—	$	—
	Corporate notes and obligations	39,148		—			39,148		—
	Municipal obligations	6,230		—			6,230		—
	U.S. government and government agency obligations	15,048		4,711			10,337		—
		$	96,879	$	41,164		$	55,715	$	—
Carrying amounts and estimated fair value of cash and cash equivalents and short-term investments	'
	The carrying amounts and estimated fair value of cash and cash equivalents and both short and long-term investments consisted of the following:
		September 30, 2013
		Amortized		Unrealized			Carrying or
		cost		gains (losses)			fair value
		(in thousands)
	Cash and cash equivalents:
	Cash	$	4,848	$	—		$	4,848
	Money market funds	13,917		—			13,917
	U.S. government notes	2,000		—			2,000
	U.S. government agency securities	886		—			886
		$	21,651	$	—		$	21,651
	Short-term investments:
	Certificates of deposit	$	3,675	$	(4	)	$	3,671
	Corporate notes and obligations	13,675		4			13,679
	Municipal obligations	1,982		1			1,983
	U.S. government notes	4,055		3			4,058
	U.S. government agency securities	20,082		7			20,089
		$	43,469	$	11		$	43,480
	Long-term investments:
	Certificates of deposit	$	10,045	$	(39	)	$	10,006
	Corporate notes and obligations	16,046		(12		)	16,034
	Municipal obligations	2,499		1			2,500
	U.S. government notes	7,154		(1		)	7,153
	U.S. government agency securities	25,916		(11		)	25,905
		$	61,660	$	(62	)	$	61,598
		December 31, 2012
		Amortized		Unrealized			Carrying or
		cost		gains (losses)			fair value
		(in thousands)
	Cash and cash equivalents:
	Cash	$	7,206	$	—		$	7,206
	Money market funds	36,453		—			36,453
	Corporate notes and obligations	455		—			455
		$	44,114	$	—		$	44,114
	Short-term investments:
	Corporate notes and obligations	$	10,292	$	(5	)	$	10,287
	Municipal obligations	2,829		(6		)	2,823
	U.S. government agency securities	3,132		1			3,133
		$	16,253	$	(10	)	$	16,243
	Long-term investments:
	Corporate notes and obligations	$	28,462	$	(56	)	$	28,406
	Municipal obligations	3,412		(5		)	3,407
	U.S. government notes	4,710		1			4,711
	U.S. government agency securities	7,199		5			7,204
		$	43,783	$	(55	)	$	43,728
Summary of the maturities of the Company's investments	'
	The following table summarizes the maturities of our investments at September 30, 2013:
				Carrying or
				fair value
				(in thousands)
	Remainder of 2013			$	7,170
	2014			47,354
	2015			40,656
	2016			9,898
	Total			$	105,078
	Actual maturities may differ from the contractual maturities because borrowers may have the right to call or prepay certain obligations.

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Other intangible assets, net	'
	Other intangible assets, net, consisted of the following:
		September 30, 2013
		Gross carrying		Accumulated			Net intangibles		Weighted Average Remaining Useful Life
		amount		amortization
		(in thousands)							(in years)
	Developed technology	$	1,874	$	(1,417	)	$	457	1.5
	Trade names	260		(175		)	85		1.3
	Customer lists and contracts	7,300		(2,392		)	4,908		5.3
		$	9,434	$	(3,984	)	$	5,450	5
		December 31, 2012
		Gross carrying		Accumulated			Net intangibles		Weighted Average Remaining Useful Life
		amount		amortization
		(in thousands)							(in years)
	Developed technology	$	1,874	$	(1,170	)	$	704	2.2
	Trade names	260		(124		)	136		2
	Customer lists and contracts	7,300		(1,609		)	5,691		6
		$	9,434	$	(2,903	)	$	6,531	5.5
Minimum future amortization expense for intangible assets	'
	Minimum future amortization expense for other intangible assets at September 30, 2013 was as follows:
		Amortization
		(in thousands)
	Remainder of fiscal 2013	$	360
	2014	1,405
	2015	1,032
	2016	928
	2017	928
	2018	266
	Thereafter	531
		$	5,450

Stock_Incentive_Plans_Tables

Stock Incentive Plans (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-based compensation expense	'
	Total stock-based compensation expense recognized consisted of:
		Three months ended September 30,							Nine months ended September 30,
		2013			2012				2013				2012
		(in thousands)
	Cost of revenues	$	215		$	80			$	485			$	170
	Sales and marketing	322			85				709				256
	Research and development	948			532				2,575				915
	General and administrative	1,902			1,551				7,125				2,302
		$	3,387		$	2,248			$	10,894			$	3,643
Summary of Company's stock option activities	'
	The following table summarizes our stock option activity under the 2009 Plan and 2011 Plan:
		Number of		Weighted				Weighted		Aggregate
		Shares		Average				Average		Intrinsic
				Exercise				Remaining		Value
				Price				Contractual
								Term
								(in years)		(in thousands)
	Outstanding at January 1, 2013	3,461,255		$	7.19
	Granted	790,330		$	23.34
	Exercised	(698,800	)	$	4.89
	Forfeited or expired	(92,046	)	$	17.1
	Outstanding at September 30, 2013	3,460,739		$	11.08			7.46		$	72,442
	Ending vested and expected to vest at September 30, 2013	3,363,041		$	10.89			7.42		$	71,013
	Exercisable at September 30, 2013	1,709,944		$	6.39			6.15		$	43,804
	Stock options granted during the nine months ended September 30, 2013 were made under the 2011 Plan. There were no grants under the 2009 Plan during the nine months ended September 30, 2013.
Stock options activity, additional information	'
	Following is additional information pertaining to our stock option activity:
		Three months ended September 30,							Nine months ended September 30,
		2013			2012				2013				2012
		(in thousands, except
		per option amounts)
	Weighted average fair value per option granted	$	14.15		$	12.18			$	11.5			$	7.29
	Grant-date fair value of options vested	$	1,290		$	1,155			$	3,328			$	1,851
	Intrinsic value of options exercised	$	8,471		$	7,458			$	14,867			$	10,016
	Proceeds received from options exercised	$	2,378		$	927			$	3,420			$	2,266
Summary of RSU activities	'
		RSUs						Performance Awards
		Number of		Weighted				Number of			Weighted
		Shares		Average				Shares			Average
				Grant Date							Grant Date
				Fair Value							Fair Value
				Per Share							Per Share
	Outstanding at January 1, 2013	40,625		$	8.9			588,000			$	25.79
	Granted	273,669		24.9				124,300			19.6
	Released	(13,125	)	13.33				(147,000	)		25.79
	Forfeited or expired	(5,697	)	24.87				—			—
	Outstanding at September 30, 2013	295,472		$	23.22			565,300			$	24.43
	Ending vested and expected to vest at September 30, 2013	269,939						565,300
Schedule of Stock Options and Employee Stock Purchase Plan Valuation Assumptions	'
	The fair value of stock options and stock purchase rights granted under the 2009 Plan, the 2011 Plan and the ESPP were estimated at the date of grant using the Black-Scholes option valuation model with the following weighted average assumptions:
		Three months ended September 30,					Nine months ended September 30,
		2013		2012			2013			2012
	Stock option plans:
	Risk-free interest rate	1.72	%	0.87	%		1.08	%		0.87	%
	Expected life of options (in years)	6.08		6.08			6.08			6.08
	Expected dividend yield	—	%	—	%		—	%		—	%
	Volatility	52	%	52	%		52	%		55	%
	Employee Stock Purchase Plan:
	Risk-free interest rate	0.13	%	0.14	%		0.13	%		0.15	%
	Expected life of options (in years)	0.5		0.5			0.5			0.5
	Expected dividend yield	—	%	—	%		—	%		—	%
	Volatility	36	%	37	%		37	%		43	%
ScheduleOfSharesOfCommonStockAvailableForFutureIssuanceUnderStockOptionPlansTextBlock [Table Text Block]	'
	The following numbers of shares of common stock were reserved and available for future issuance at September 30, 2013:
		Reserved
		Shares
	Options and awards outstanding under stock incentive plans	4,321,511
	Shares available for future grant under the stock incentive plan	2,080,132
	Shares available under the Employee Stock Purchase Plan	852,392
	Total	7,254,035

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Supplemental disclosure of revenue by service type	'
	Supplemental disclosure of revenues by type is as follows:
		Three months ended September 30,				Nine months ended September 30,
		2013		2012		2013		2012
		(in thousands)
	On-demand revenues	$	30,186	$	24,040	$	88,907	$	62,195
	On-premise revenues	2,820		3,416		9,224		9,736
		$	33,006	$	27,456	$	98,131	$	71,931

Basis_of_Presentation_and_Sign2

Basis of Presentation and Significant Accounting Policies (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Basis of Presentation and Significant Accounting Policies [Line Items]	'	'	'	'	'
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$0	$0	$0	$0	'
Increase (Decrease) in Deferred Charges	'	'	1,400,000	'	'
Deferred Commission Balance	$1,200,000	'	$1,200,000	'	$0
Minimum [Member]	'	'	'	'	'
Basis of Presentation and Significant Accounting Policies [Line Items]	'	'	'	'	'
Contract agreements maturity period	'	'	'1 year	'	'
Maximum [Member]	'	'	'	'	'
Basis of Presentation and Significant Accounting Policies [Line Items]	'	'	'	'	'
Contract agreements maturity period	'	'	'5 years	'	'

Net_Income_Loss_Per_Share_of_C2

Net Income (Loss) Per Share of Common Stock (Details Table) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Components of net income (loss) per share	'	'	'	'
Net income	$3,360	$6,829	$10,958	$15,470
Basic shares:	'	'	'	'
Weighted average common shares outstanding	26,681,974	25,201,404	26,407,572	22,747,911
Diluted shares:	'	'	'	'
Weighted average common shares outstanding	26,681,974	25,201,404	26,407,572	22,747,911
Effect of potentially dilutive securities:	'	'	'	'
Weighted Average Number Diluted Shares Outstanding Adjustment	1,941,118	2,207,307	1,922,949	1,735,667
Weighted average shares used to compute diluted net loss per share	28,623,092	27,408,711	28,330,521	24,483,578
Net income (loss) per share:	'	'	'	'
Basic	$0.13	$0.27	$0.41	$0.68
Diluted	$0.12	$0.25	$0.39	$0.63

Net_Income_Loss_Per_Share_of_C3

Net Income (Loss) Per Share of Common Stock (Details Table 1) (Employee Stock Options and Awards [Member])	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Stock Options and Awards [Member]	'	'	'	'
Antidilutive securities excluded from computation of earning per share	'	'	'	'
Anti-dilutive securities excluded from computation of earnings per share amount	826,879	158,266	681,394	175,104

Net_Income_Loss_Per_Share_of_C4

Net Income (Loss) Per Share of Common Stock (Details Textual) (Performance-Based Awards [Member])	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Performance-Based Awards [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Anti-dilutive securities excluded from computation of earnings per share amount	124,300	721,333	121,541	721,333

Financial_Instruments_and_Fair2

Financial Instruments and Fair Value Measurements (Fair Value Hierarchy) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Estimate of Fair Value [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	$121,882	$96,879
Level 1 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	27,128	41,164
Level 2 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	94,754	55,715
Level 3 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	0	0
Money market funds [Member] | Estimate of Fair Value [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	13,917	36,453
Money market funds [Member] | Level 1 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	13,917	36,453
Money market funds [Member] | Level 2 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	0	0
Money market funds [Member] | Level 3 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	0	0
Certificates of Deposit [Member] | Estimate of Fair Value [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	13,677	'
Certificates of Deposit [Member] | Level 1 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	0	'
Certificates of Deposit [Member] | Level 2 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	13,677	'
Certificates of Deposit [Member] | Level 3 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	0	'
Corporate Debt Securities [Member] | Estimate of Fair Value [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	29,713	39,148
Corporate Debt Securities [Member] | Level 1 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	0	0
Corporate Debt Securities [Member] | Level 2 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	29,713	39,148
Corporate Debt Securities [Member] | Level 3 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	0	0
Municipal Bonds [Member] | Estimate of Fair Value [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	4,483	6,230
Municipal Bonds [Member] | Level 1 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	0	0
Municipal Bonds [Member] | Level 2 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	4,483	6,230
Municipal Bonds [Member] | Level 3 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	0	0
US Government and Governmental agency obligations [Member] | Estimate of Fair Value [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	60,092	15,048
US Government and Governmental agency obligations [Member] | Level 1 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	13,211	4,711
US Government and Governmental agency obligations [Member] | Level 2 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	46,881	10,337
US Government and Governmental agency obligations [Member] | Level 3 [Member]	'	'
Fair value hierarchy of Company's financial assets on recurring basis	'	'
Assets, Fair Value	$0	$0

Financial_Instruments_and_Fair3

Financial Instruments and Fair Value Measurements (Carrying Amounts and Fair Value) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Cash	$4,848	$7,206	'	'
Money market funds	13,917	36,453	'	'
US Government Securities, at Carrying Value	2,000	'	'	'
US Government Agencies Securities, at Carrying Value	886	'	'	'
Corporate notes and obligations	'	455	'	'
Cash and cash equivalents	21,651	44,114	90,306	23,732
Short-term investments, Amortized cost	43,469	16,253	'	'
Short-term investments, Unrealized gains (losses)	11	-10	'	'
Available-for-sale Securities, Current	43,480	16,243	'	'
Long-term investments, Amortized cost	61,660	43,783	'	'
Long-term investments, Unrealized gains (losses)	-62	-55	'	'
Long-term investments, Carrying or fair value	61,598	43,728	'	'
Certificates of Deposit [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Short-term investments, Amortized cost	3,675	'	'	'
Short-term investments, Unrealized gains (losses)	-4	'	'	'
Available-for-sale Securities, Current	3,671	'	'	'
Long-term investments, Amortized cost	10,045	'	'	'
Long-term investments, Unrealized gains (losses)	-39	'	'	'
Long-term investments, Carrying or fair value	10,006	'	'	'
Corporate Note Securities	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Short-term investments, Amortized cost	13,675	10,292	'	'
Short-term investments, Unrealized gains (losses)	4	-5	'	'
Available-for-sale Securities, Current	13,679	10,287	'	'
Long-term investments, Amortized cost	16,046	28,462	'	'
Long-term investments, Unrealized gains (losses)	-12	-56	'	'
Long-term investments, Carrying or fair value	16,034	28,406	'	'
Municipal Bonds [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Short-term investments, Amortized cost	1,982	2,829	'	'
Short-term investments, Unrealized gains (losses)	1	-6	'	'
Available-for-sale Securities, Current	1,983	2,823	'	'
Long-term investments, Amortized cost	2,499	3,412	'	'
Long-term investments, Unrealized gains (losses)	1	-5	'	'
Long-term investments, Carrying or fair value	2,500	3,407	'	'
US government notes [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Short-term investments, Amortized cost	4,055	'	'	'
Short-term investments, Unrealized gains (losses)	3	'	'	'
Available-for-sale Securities, Current	4,058	'	'	'
Long-term investments, Amortized cost	7,154	4,710	'	'
Long-term investments, Unrealized gains (losses)	-1	1	'	'
Long-term investments, Carrying or fair value	7,153	4,711	'	'
US Government Agencies Debt Securities [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Short-term investments, Amortized cost	20,082	3,132	'	'
Short-term investments, Unrealized gains (losses)	7	1	'	'
Available-for-sale Securities, Current	20,089	3,133	'	'
Long-term investments, Amortized cost	25,916	7,199	'	'
Long-term investments, Unrealized gains (losses)	-11	5	'	'
Long-term investments, Carrying or fair value	$25,905	$7,204	'	'

Financial_Instruments_and_Fair4

Financial Instruments and Fair Value Measurements (Summary of Investment Maturities) (Details) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Maturities of the Company's investments	'
Available-for-sale Securities, Debt Maturities, Remainder of Fiscal Year, Fair Value	$7,170
Available For Sale Securities, Debt Maturities, Next Fiscal Year, Fair Value	47,354
Available For Sale Securities, Debt Maturities, In Two Years, Fair Value	40,656
Available For Sale Securities, Debt Maturities, In Three Years, Fair Value	9,898
Total	$105,078

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets (Details Table) (Gross and Net Balances) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Other Intangible Net	'	'
Gross Carrying Amount	$9,434	$9,434
Accumulated Amortization	-3,984	-2,903
Net Intangibles	5,450	6,531
Finite-Lived Intangible Assets, Remaining Amortization Period	'59 months 16 days	'5 years 6 months 10 days
Developed technology [Member]	'	'
Other Intangible Net	'	'
Gross Carrying Amount	1,874	1,874
Accumulated Amortization	-1,417	-1,170
Net Intangibles	457	704
Finite-Lived Intangible Assets, Remaining Amortization Period	'17 months 20 days	'2 years 2 months 10 days
Trade Names [Member]	'	'
Other Intangible Net	'	'
Gross Carrying Amount	260	260
Accumulated Amortization	-175	-124
Net Intangibles	85	136
Finite-Lived Intangible Assets, Remaining Amortization Period	'15 months	'2 years
Customer Relationships and Contracts [Member]	'	'
Other Intangible Net	'	'
Gross Carrying Amount	7,300	7,300
Accumulated Amortization	-2,392	-1,609
Net Intangibles	$4,908	$5,691
Finite-Lived Intangible Assets, Remaining Amortization Period	'64 months 6 days	'6 years

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets (Details Table 1) (Future Amortization) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Minimum future amortization expense for intangible assets	'
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$360
Finite-Lived Intangible Assets, Amortization Expense, Next Fiscal Year	1,405
Finite-Lived Intangible Assets, Amortization Expense, in Two Years	1,032
Finite-Lived Intangible Assets, Amortization Expense, in Three Years	928
Finite-Lived Intangible Assets, Amortization Expense, in Four Years	928
Finite-Lived Intangible Assets, Amortization Expense, in Five Years	266
Thereafter	531
Minimum future amortization expense of other intangible assets	$5,450

Goodwill_and_Other_Intangible_4

Goodwill and Other Intangible Assets (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]	'	'	'	'
Goodwill, Period Increase (Decrease)	$0	'	$0	'
Impairment of Intangible Assets, Finite-lived	0	0	0	0
Goodwill and Other Intangible Assets (Textual) [Abstract]	'	'	'	'
Amortization of other intangible assets	$400,000	$400,000	$1,081,000	$1,226,000

Income_Taxes_Details_Textual

Income Taxes (Details Textual) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012
Income Tax Disclosure [Abstract]	'	'	'
Annual effective tax rate	'	35.30%	-0.70%
Federal statutory tax rate	'	35.00%	'
Research and development tax credits	$0.50	'	'

Commitments_and_Contingencies_

Commitments and Contingencies (Details Textual1) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Operating Leased Assets [Line Items]	'	'
Lease Expiration Date	'	29-Apr-15
Operating Leases, Rent Expense, Minimum Rentals	$20,000	'
Minimum [Member]	'	'
Operating Leased Assets [Line Items]	'	'
Operating Leases, Future Minimum Payments Due	13,000	13,000
Maximum [Member]	'	'
Operating Leased Assets [Line Items]	'	'
Operating Leases, Future Minimum Payments Due	$15,000	15,000

Commitments_and_Contingencies_1

Commitments and Contingencies Commitments and Contingencies (Details Textual2) (Computer Equipment [Member], USD $)	Sep. 30, 2013
Computer Equipment [Member]	'
Capital Leased Assets [Line Items]	'
Capital Leases, Future Minimum Monthly Payments Due	$59,000
Capital Lease Term in Months	'23 months

Stock_Incentive_Plans_Details_

Stock Incentive Plans (Details Table 3) (Stock-based compensation allocation) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock-based compensation expense	'	'	'	'
Stock-based compensation by financial statement line item	$3,387	$2,248	$10,894	$3,643
Cost of Sales [Member]	'	'	'	'
Stock-based compensation expense	'	'	'	'
Stock-based compensation by financial statement line item	215	80	485	170
Selling and Marketing Expense [Member]	'	'	'	'
Stock-based compensation expense	'	'	'	'
Stock-based compensation by financial statement line item	322	85	709	256
Research and Development Expense [Member]	'	'	'	'
Stock-based compensation expense	'	'	'	'
Stock-based compensation by financial statement line item	948	532	2,575	915
General and Administrative Expense [Member]	'	'	'	'
Stock-based compensation expense	'	'	'	'
Stock-based compensation by financial statement line item	$1,902	$1,551	$7,125	$2,302

Stock_Incentive_Plans_Details_1

Stock Incentive Plans (Details Table) (Stock Option Activity) (USD $)	9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'
Outstanding at December 31, 2012, Shares	3,461,255
Options granted, Shares	790,330
Options exercised, Shares	-698,800
Options forfeited or expired, Shares	-92,046
Outstanding at March 31, 2013, Shares	3,460,739
Ending vested and expected to vest, Number of Shares at End of Period	3,363,041
Stock option exercisable at End of Period, Shares, Ending Balance	1,709,944
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]	'
Outstanding at December 31, 2012, weighted average exercise price, Beginning Balance	$7.19
Options granted, weighted average exercise price	$23.34
Options exercised, weighted average exercise price	$4.89
Options forfeited or expired, weighted average exercise price	$17.10
Outstanding at End of Period, weighted average exercise price, Ending Balance	$11.08
Ending vested and expected to vest, Weighted Average Exercise Price at End of Period	$10.89
Stock option exercisable at End of Period, weighted average exercise price, Ending Balance	$6.39
Weighted average remaining contractual term at End of Period	'7 years 5 months 17 days
Ending vested and expected to vest, Weighted Average Remaining Contractual Term at End of Period	'7 years 5 months 2 days
Stock option exercisable, weighted average remaining Contractual term, Ending balance	'6 years 1 month 24 days
Aggregate Intrinsic value at End of Period	$72,442
Ending vested and expected to vest, Aggregate Intrinsic Value at End of Period	71,013
Exercisable aggregate Intrinsic Value	$43,804

Stock_Incentive_Plans_Details_2

Stock Incentive Plans (Details Table 1) (Stock Option Additional Information) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock options activity, additional information	'	'	'	'
Weighted average fair value per option granted	$14.15	$12.18	$11.50	$7.29
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	$1,290	$1,155	$3,328	$1,851
Intrinsic value of options exercised	8,471	7,458	14,867	10,016
Proceeds received from options exercised	$2,378	$927	$3,420	$2,266

Stock_Incentive_Plans_Details_3

Stock Incentive Plans (Details Table 2) (RSU and Performance Award activity) (USD $)	9 Months Ended
	Sep. 30, 2013
RSUs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]	'
Outstanding at December 31, 2012	40,625
Granted	273,669
Released	-13,125
Forfeited or expired	5,697
Outstanding at March 31, 2013	295,472
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments other than Options, Vested and Expected to Vest, Outstanding, Number	269,939
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$8.90
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$24.90
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$13.33
Weighted Average Grant Date Fair Value Forfeited	$24.87
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$23.22
Performance Shares [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]	'
Outstanding at December 31, 2012	588,000
Granted	124,300
Released	-147,000
Forfeited or expired	0
Outstanding at March 31, 2013	565,300
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments other than Options, Vested and Expected to Vest, Outstanding, Number	565,300
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$25.79
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$19.60
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$25.79
Weighted Average Grant Date Fair Value Forfeited	$0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$24.43

Stock_Incentive_Plans_Details_4

Stock Incentive Plans (Details Table 4) (Fair Value Assumptions)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock Option [Member]	'	'	'	'
Schedule of Stock Options and Employee Stock Purchase Plan Valuation Assumptions	'	'	'	'
Risk-free interest rate	1.72%	0.87%	1.08%	0.87%
Expected Life of options (in years)	'6 years 0 months 29 days	'6 years 0 months 29 days	'6 years 0 months 29 days	'6 years 0 months 29 days
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Volatility	52.00%	52.00%	52.00%	55.00%
Employee Stock Purchase Plan [Member]	'	'	'	'
Schedule of Stock Options and Employee Stock Purchase Plan Valuation Assumptions	'	'	'	'
Risk-free interest rate	0.13%	0.14%	0.13%	0.15%
Expected Life of options (in years)	'6 months	'6 months	'6 months	'6 months
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Volatility	36.00%	37.00%	37.00%	43.00%

Stock_Incentive_Plans_Details_5

Stock Incentive Plans (Details Table 5) (Reserved Shares)	Sep. 30, 2013
Class of Stock [Line Items]	'
Reserved Shares	7,254,035
Options and Awards Outstanding [Member]	'
Class of Stock [Line Items]	'
Reserved Shares	4,321,511
Shares Available for Future Grant [Member]	'
Class of Stock [Line Items]	'
Reserved Shares	2,080,132
Shares Available Under Employee Stock Purchase Plan [Member]	'
Class of Stock [Line Items]	'
Reserved Shares	852,392

Stock_Incentive_Plans_Details_6

Stock Incentive Plans (Details Textual) (USD $)

3 Months Ended

9 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

9 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

1 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Jan. 31, 2013

Sep. 30, 2013

Jan. 31, 2013

Sep. 30, 2013

Aug. 09, 2012

Feb. 28, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Aug. 09, 2012

Feb. 28, 2013

Sep. 30, 2013

Sep. 30, 2012

Aug. 09, 2012

Feb. 28, 2013

Aug. 09, 2012

Feb. 28, 2013

Aug. 09, 2012

Feb. 28, 2013

Aug. 09, 2012

Feb. 28, 2013

Employee Stock Purchase Plan [Member]

Stock Option Plans [Member]

Stock Option Plans [Member]

RSUs [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Restricted Stock [Member]

Restricted Stock Units and Performance Awards [Member]

2009 Plan [Member]

2011 Equity Incentive Award Plan [Member]

2011 Equity Incentive Award Plan [Member]

Employee Stock Purchase Plan [Member]

Employee Stock Purchase Plan [Member]

Upon Issuance [Domain]

Upon Issuance [Domain]

First Anniversary [Member]

First Anniversary [Member]

Second Anniversary [Member]

Second Anniversary [Member]

Third Anniversary [Member]

Third Anniversary [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested

'

'

'

'

'

'

'

$300,000

'

'

$4,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

'

'

790,330

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount

0

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share Price

'

'

'

'

'

$32.01

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Forfeiture Rate

4.40%

4.10%

4.40%

4.10%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized Compensation Cost Related to unvested Stock option

'

'

'

'

'

12,200,000

'

'

'

'

'

'

14,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Expected to be recognized over a weighted average period

'

'

'

'

'

'2 years 7 months 4 days

'

'

'

'

'

'

'2 years 6 months 13 days

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value

'

'

'

'

'

'

'

200,000

'

'

3,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

'

'

'

'

'

'

'

'

147,000

113,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Shares of Common Stock Issuable Per Award

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4

2.5

'

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'

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'

'

'

Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures

'

'

'

'

'

'

'

'

'

'

'

588,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period

'

'

'

'

'

'

'

13,125

'

'

147,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares purchased under ESPP

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

109,270

126,242

'

'

'

'

'

'

'

'

Purchase price of ESPP shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,900,000

700,000

'

'

'

'

'

'

'

'

Unrecognized compensation cost related to employee stock purchase plan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$300,000

'

'

'

'

'

'

'

'

'

Expected recognized period under employee stock purchase plan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 months

'

'

'

'

'

'

'

'

'

Maximum Performance Share Conversion Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'0.25

'0.25

'0.25

'0.25

'0.25

'0.25

'0.25

'0.25

Estimated Performance Share Conversion Rate

'

'

'

'

'

'

'

'

'

'

1.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual Automatic Increase in Shares Reserved for Issuance, Shares

'

'

'

'

260,585

'

1,302,926

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Segment_Information_Details_Ta

Segment Information (Details Table) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information Revenue	'	'	'	'
Revenues	$33,006	$27,456	$98,131	$71,931
On-demand revenues [Member]	'	'	'	'
Segment Reporting Information Revenue	'	'	'	'
Revenues	30,186	24,040	88,907	62,195
On-premise revenues [Member]	'	'	'	'
Segment Reporting Information Revenue	'	'	'	'
Revenues	$2,820	$3,416	$9,224	$9,736