Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax

For the years ended December 31, 2019, 2018 and 2017, our loss before income taxes was comprised of the following (in thousands):

	2019		2018		2017
Domestic	$	(32,091)	$	(30,663)	$	(23,093)
Foreign	(17,803)		(18,549)		(7,153)
Total	$	(49,894)	$	(49,212)	$	(30,246)

Schedule of Components of Income Tax Expense (Benefit)

For the years ended December 31, 2019, 2018 and 2017, our income tax expense (benefit) was comprised of the following (in thousands):

	2019		2018		2017
Current:
Federal	$	3	$	—	$	(65)
State	60		25		68
Foreign	1,091		432		1,009
Total current expense	1,154		457		1,012
Deferred:
Federal	—		—		(42)
State	—		—		—
Foreign	(334)		(218)		(209)
Total deferred benefit	(334)		(218)		(251)
Total income tax expense	$	820	$	239	$	761

Schedule of Effective Income Tax Rate Reconciliation

For the years ended December 31, 2019, 2018 and 2017, the provision for income taxes differs from the amount computed by applying the federal statutory income tax rates to our loss before the provision (benefit) for income taxes, as follows:

	2019		2018		2017
U.S. federal statutory tax rate	21.0	%	21.0	%	34.0	%
State tax expense	7.1		7.2		4.9
Foreign rate differential	(5.1)		(5.1)		(6.7)
Nondeductible expenses	(0.7)		(0.7)		(0.9)
Equity compensation	12.0		9.5		—
Tax credits	6.5		3.9		5.8
Unrecognized tax benefits	(1.1)		(0.8)		(0.7)
Other	(0.8)		0.6		(0.3)
Remeasurement of deferred taxes	(1.6)		—		(7.0)
Change in valuation allowance	(38.9)		(36.0)		(31.6)
Total	(1.6)	%	(0.4)	%	(0.4)	%

Schedule of Deferred Tax Assets and Liabilities

As of December 31, 2019 and 2018, significant components of our deferred tax assets and liabilities were as follows (in thousands):

	2019		2018
Deferred tax assets:
Net operating losses	$	34,875	$	21,059
Tax credits	8,648		5,945
Deferred revenue	1,291		4,179
Equity compensation	1,668		3,923
Lease liabilities	13,066		—
Accrued vacation	409		1,170
Deferred rent	—		373
Bad debt	164		164
Depreciation	—		151
Other	260		548
Gross deferred tax assets	60,381		37,512
Less: Valuation allowance	(35,607)		(30,039)
Total deferred tax assets	24,774		7,473
Deferred tax liabilities:
Prepaid expenses	(9,562)		(6,640)
Right-of-use assets	(6,488)		—
Unbilled receivables	(3,849)		(419)
Depreciation	(4,377)		—
Other	(42)		(130)
Total deferred tax liabilities	(24,318)		(7,189)
Net deferred tax asset	$	456	$	284

Summary of Income Tax Contingencies

The following table summarizes the activity related to our unrecognized tax benefit from January 1, 2017 to December 31, 2019 (in thousands):

Balance as of January 1, 2017	$	419
Additions for tax positions in current years	232
Additions for tax positions in prior years	—
Reductions due to lapse in statutes of limitations	—
Settlements	—
Balance as of December 31, 2017	651
Additions for tax positions in current years	388
Additions for tax positions in prior years	—
Reductions due to lapse in statutes of limitations	—
Settlements	—
Balance as of December 31, 2018	1,039
Additions for tax positions in current years	536
Additions for tax positions in prior years	—
Reductions due to lapse in statutes of limitations	—
Settlements	—
Balance as of December 31, 2019	$	1,575