Income Taxes (Tables)

6 Months Ended

Jun. 30, 2021

Income Tax Disclosure [Abstract]

Schedule of effective income tax rate reconciliation

A reconciliation of the U.S. federal statutory tax rate to the Company’s effective income tax rate is as follows:

	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
U.S. federal statutory tax rate	21.0	%	21.0	%	21.0	%	21.0	%
State income taxes, net of federal benefit	(0.3)		0.4		(0.2)		—
Non-U.S. income taxed at different rates	(0.1)		0.9		0.3		0.2
Increase (reduction) in tax benefit related to stock-based awards	2.2		0.9		1.2		(0.1)
Non-deductible expenses	3.6		0.7		1.1		—
Research and development credit	—		0.1		—		—
Increase in valuation allowance	(26.5)		(23.7)		(23.6)		(16.0)
Effect of tax rate differences of NOL carryback	—		—		—		2.6
Effective income tax rate	(0.1)	%	0.3	%	(0.2)	%	7.7	%