Summary of Significant Accounting Policies - Basis of Presentation (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) segment	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Accounting Policies [Abstract]
Foreign currency translation adjustment	$ (400)		$ 7,000
Number of business segments | segment	1
Income tax expense	$ 3,017	$ 0