Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

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,
	2019		2018		2017
	(in thousands)
Domestic	$	72,124	$	50,010	$	34,914
Foreign	7,859		5,458		4,464
Income before income taxes	$	79,983	$	55,468	$	39,378

Schedule of Provision for (Benefit From) Income Taxes

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

	Year Ended December 31,
	2019			2018			2017
	(in thousands)
Current
Federal	$	(90	)	$	(90	)	$	22
State	646			62			23
Foreign	3,000			1,988			1,471
Total current provision	3,556			1,960			1,516
Deferred
Federal	7,085			(3,449		)	(1,650		)
State	447			21			(996		)
Foreign	(441		)	(368		)	68
Total deferred (benefit) provision	7,091			(3,796		)	(2,578		)
Total provision for (benefit from) provision for income taxes	$	10,647		$	(1,836	)	$	(1,062	)

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,
	2019		2018		2017
Federal statutory rate	21.0	%	21.0	%	35.0	%
State taxes	1.5		(1.9	)	(2.1	)
Stock-based compensation	(7.2	)	(20.4	)	(58.1	)
Foreign source income	0.1		(0.2	)	(0.2	)
Change in valuation allowance	1.1		4.4		2.8
Federal rate adjustment (due to 2017 Tax Act)	—		—		26.4
Federal and state research and development credit	(3.7	)	(6.7	)	(5.3	)
Other	0.4		0.5		(1.2	)
Provision for (benefit from) income taxes	13.2	%	(3.3	)%	(2.7	)%

Schedule of Deferred Tax Assets and Liabilities

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

	December 31,
	2019			2018
	(in thousands)
Deferred tax assets
Net operating loss carryforwards	$	1,325		$	11,250
Research and development credit carryforwards	20,182			16,901
Foreign tax credit carryforwards	2,586			2,209
Accrued liabilities	1,109			4,180
Deferred revenues	4,843			4,200
Lease Liability	13,187			—
Intangible assets	327			—
Stock-based compensation	5,942			6,975
Other	158			174
Gross deferred tax assets	49,659			45,889
Valuation allowance	(10,094		)	(9,100		)
Net deferred tax assets	39,565			36,789
Deferred tax liabilities
Fixed assets	(8,097		)	(8,160		)
ROU Asset	(10,496		)	—
Deferred commissions	(2,142		)	(1,458		)
Intangible assets	—			(784		)
Total deferred tax liabilities	(20,735		)	(10,402		)
Net deferred tax assets	$	18,830		$	26,387

Schedule of Unrecognized Tax Benefits

The following table summarizes the activity related to the Company’s unrecognized tax benefits (in thousands):

	Year Ended December 31,
		2019			2018			2017
Unrecognized tax benefits beginning balance		$	6,406		$	5,112		$	4,071
Gross increase for tax positions of prior years		—			279			66
Gross decrease for tax positions of prior years		(12		)	(227		)	—
Gross increase for tax positions of current year		1,384			1,399			1,101
Lapse of statute of limitations		—			(157		)	(126		)
Total unrecognized tax benefits		$	7,778		$	6,406		$	5,112