Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Domestic and Foreign Components of Loss Before Income Tax

Domestic and foreign components of loss before income tax are as follows (in thousands):

	For the Year Ended December 31,
	2021			2020			2019
Domestic	$	(102,799	)	$	(39,831	)	$	(31,571	)
Foreign		(29,511	)		(23,798	)		(19,425	)
Total	$	(132,310	)	$	(63,629	)	$	(50,996	)

Schedule of Components of the Income Tax (Provision) Benefit

Major components of the income tax (provision) benefit are as follows (in thousands):

	For the Year Ended December 31,
	2021			2020			2019
Current:
Federal	$	—		$	—		$	—
State		—			—			—
Foreign		(2,180	)		(1,110	)		(1,178	)
Total current income tax provision		(2,180	)		(1,110	)		(1,178	)
Deferred:
Federal		(1,746	)		6,790			(90	)
State		(526	)		1,657			(53	)
Foreign		1,144			972			366
Total deferred income tax (provision) benefit		(1,128	)		9,419			223
Total	$	(3,308	)	$	8,309		$	(955	)

Schedule of Major Differences Between U.S Statutory Rate and Effective Tax Rate

Major differences between the U.S. statutory rate of 21% and the effective tax rate are as follows (in thousands):

	For the Year Ended December 31,
	2021			2020			2019
Tax at statutory rate	$	27,785		$	13,362		$	10,709
State taxes		4,847			1,575			1,999
Research and development credits		3,993			2,960			2,285
Stock-based compensation		47,413			56,623			67,609
Impact of foreign operations		2,790			362			(1,363	)
Change in valuation allowance		(88,272	)		(66,877	)		(80,607	)
Other		(1,864	)		304			(1,587	)
Total	$	(3,308	)	$	8,309		$	(955	)

Schedule of Significant Components of Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands):

	December 31,
	2021			2020
Deferred tax assets:
Net operating loss carryforward	$	315,482		$	240,048
Stock-based compensation		22,561			12,201
Deferred revenue		682			—
Research and development credit, net of    uncertain tax position reserve		13,543			9,284
Operating lease liabilities		14,498			16,237
Other		14,191			11,016
Total deferred tax assets		380,957			288,786
Deferred tax liabilities:
Deferred commissions		(17,208	)		(12,288	)
Operating lease right-of-use assets		(11,331	)		(12,243	)
Property and equipment		(6,625	)		(4,458	)
Definite-lived intangibles		(5,073	)		(8,278	)
Indefinite-lived intangibles		(4,433	)		(3,127	)
Deferred revenue		—			(322	)
Other		(86	)		(193	)
Total deferred tax liabilities		(44,756	)		(40,909	)
Net deferred tax assets before valuation    allowance		336,201			247,877
Valuation allowance		(340,113	)		(248,315	)
Net deferred tax liability	$	(3,912	)	$	(438	)

Schedule of Net Operating Loss and Research Credit Carryforwards

The following tables summarizes the Company's net operating loss and research credit carryforwards (dollars in thousands):

	December 31, 2021		Year Expiration Begins (if not utilized)
Federal net operating loss carryforwards generated 2017 and prior	$	288,052	2025
Federal net operating loss carryforwards generated after 2017		857,522	Non-expiring
Total Federal net operating loss carryforwards		1,145,574
State net operating loss carryforwards		790,264	2022
Foreign net operating loss carryforwards		110,463	Non-expiring
Federal research & development credits		21,890	2030
State research & development credits		1,191	2040
Foreign research & development credits		378	2039

Schedule of Reconciliation of Unrecognized Tax Benefits

A reconciliation of the beginning and ending balances for unrecognized tax benefits is as follows (in thousands):

	For the Year Ended December 31,
	2021		2020		2019
Balance at January 1	$	7,029	$	5,210	$	4,118
Additions for tax positions related to the    current year		2,081		1,799		1,435
Additions for tax positions related to prior years		23		20		—
Reductions for tax positions related to prior years		—		—		(343	)
Reductions related to settlements		—		—		—
Reductions related to a lapse of statute		—		—		—
Balance at December 31	$	9,133	$	7,029	$	5,210