Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Schedule of Geographical Breakdown of Income (Loss) Before Provision for (Benefit From) Income Taxes

The Company’s geographical breakdown of income before income taxes is as follows:

	Year Ended December 31,
	2016		2015		2014
	(in thousands)
Domestic	$	28,982	$	22,540	$	7,384
Foreign	1,447		1,980		1,229
Income before income taxes	$	30,429	$	24,520	$	8,613

Schedule of Provision for (Benefit From) Income Taxes

The provision for (benefit from) income taxes consists of the following:

	Year Ended December 31,
	2016		2015			2014
	(in thousands)
Current
Federal	$	8,334	$	115		$	—
State	1,125		1,041			317
Foreign	963		693			651
Total current provision	10,422		1,849			968
Deferred
Federal	611		7,115			(22,184		)
State	126		(247		)	(433		)
Foreign	46		(62		)	18
Total deferred provision (benefit)	783		6,806			(22,599		)
Total provision for (benefit from) income taxes	$	11,205	$	8,655		$	(21,631	)

Schedule of Effective Income Tax Rate Reconciliation

The reconciliation of the statutory federal income tax rate to the Company’s effective tax rate is as follows:

	Year Ended December 31,
	2016		2015		2014
Federal statutory rate	35.0	%	35.0	%	35.0	%
State taxes	2.1		2.2		1.4
Stock-based compensation	2.4		0.5		1.3
Foreign source income	0.9		0.6		3.9
Change in valuation allowance	1.3		1.3		(270.5	)
Incremental federal rate benefit previously not recognized	—		—		(7.0	)
Federal and state research and development credit	(3.6	)	(3.9	)	(11.3	)
Other	(1.3	)	(0.4	)	(3.9	)
Provision for (benefit from) income taxes	36.8	%	35.3	%	(251.1	)%

Schedule of Deferred Tax Assets and Liabilities

The components of the Company’s deferred tax assets and liabilities are as follows:

	December 31,
	2016			2015
	(in thousands)
Deferred tax assets
Net operating loss carryforwards	$	1,472		$	1,936
Research and development credit carryforwards	3,334			6,508
Accrued liabilities	681			614
Deferred revenues	5,018			3,838
Deferred rent	74			142
Intangible assets	409			246
Stock-based compensation	12,513			8,301
Other	1,225			1,396
Gross deferred tax assets	24,726			22,981
Valuation allowance	(3,688		)	(3,303		)
Net deferred tax assets	21,038			19,678
Deferred tax liabilities
Fixed assets	(4,448		)	(3,599		)
Intangible assets	—			—
Total deferred tax liabilities	(4,448		)	(3,599		)
Net deferred tax assets	$	16,590		$	16,079

Schedule of Unrecognized Tax Benefits

A reconciliation of the Company’s unrecognized tax benefits is as follows:

	Year Ended December 31,
	2016			2015			2014
	(in thousands)
Unrecognized tax benefits beginning balance	$	3,506		$	3,330		$	3,255
Gross increase for tax positions of prior years	2			20			—
Gross decrease for tax positions of prior years	(15		)	(171		)	(127		)
Gross increase for tax positions of current year	659			418			332
Lapse of statute of limitations	(81		)	(91		)	(130		)
Total unrecognized tax benefits	$	4,071		$	3,506		$	3,330