Income Taxes Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of Components of Loss Before Income Taxes

U.S. and international components of loss before income taxes were as follows:

	Year Ended December 31,
(in thousands)	2019			2018			2017
U.S. (loss) income	$	(21,644	)	$	1,429		$	(29,357	)
Foreign loss	(64,005		)	(72,586		)	(11,494		)
Total loss before income taxes	$	(85,649	)	$	(71,157	)	$	(40,851	)

Schedule of Components of the Provision for Income Taxes

The components of the provision for income taxes were as follows: 

	Year Ended December 31,
(in thousands)	2019			2018		2017
Current
Federal	$	(224	)	$	—	$	140
State	100			58		6
Foreign	9,245			2,306		898
Total current tax expense	9,121			2,364		1,044
Deferred
Foreign	4,243			—		(873		)
Total deferred tax expense (benefit)	4,243			—		(873		)
Total provision for income taxes	$	13,364		$	2,364	$	171

Schedule of Effective Income Tax Rate Reconciliation

The items accounting for the difference between income taxes computed at the federal statutory rate and our effective tax rate were as follows:

	Year Ended December 31,
	2019		2018		2017
U.S. federal statutory tax rate	21.0	%	21.0	%	34.0	%
State and local taxes	4.8		(1.5	)	2.4
Research and development tax credit	3.1		1.9		3.0
Stock-based compensation	19.0		0.5		—
Uncertain tax positions	(0.5	)	(1.0	)	(0.2	)
Foreign tax rate differential	(7.9	)	(9.4	)	(4.0	)
Change in valuation allowance	(40.8	)	(12.6	)	2.7
Gain on sale of intellectual property	(12.3	)	—		—
Transition tax	—		—		(2.7	)
Revaluation of U.S. deferred income taxes	—		—		(34.5	)
Other	(2.0	)	(2.2	)	(1.1	)
Effective tax rate	(15.6	)%	(3.3	)%	(0.4	)%

Components of Deferred Tax Assets and Liabilities

The components of the deferred tax assets and liabilities were as follows: 

	December 31,
(in thousands)	2019			2018
Deferred tax assets:
Net operating losses	$	65,494		$	32,745
Deferred revenue	13,891			16,488
Stock-based compensation	10,032			5,581
Tax credits	7,585			5,320
Leases	10,451			2,436
Accrued compensation	918			697
Other	263			68
Total deferred tax assets	108,634			63,335
Valuation allowance	(82,237		)	(47,266		)
Net deferred tax assets	26,397			16,069
Deferred tax liabilities:
Deferred commissions	(15,003		)	(13,273		)
Property and equipment	(10,086		)	(2,166		)
Intangible assets	(919		)	(353		)
Other	(389		)	(277		)
Total deferred tax liabilities	(26,397		)	(16,069		)
Net deferred tax liabilities	$	—		$	—

Schedule Change of Gross Unrealized Tax Benefits

The change in gross unrecognized tax benefits, excluding accrued interest, were as follows: 

	Year Ended December 31,
(in thousands)	2019			2018			2017
Unrecognized tax benefits at the beginning of the period	$	4,814		$	1,199		$	736
Additions for tax positions in the current year	2,306			3,571			446
Increase in prior year positions	90			102			30
Decrease in prior year positions	(89		)	(58		)	(13		)
Acquisitions	42			—			—
Unrecognized tax benefits at the end of the period	$	7,163		$	4,814		$	1,199