Income Taxes - Schedule of Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current income tax provision (benefit):
U.S. federal	$ 2,943	$ (471)	$ (53)
U.S. state	1,396	354	1,774
Deferred income tax provision (benefit):
U.S. federal	9,876	(1,503)	10,624
U.S. state	109	881	62
Total tax provision (benefit)	$ 14,324	(436)	12,344
Ireland
Deferred income tax provision (benefit):
Ireland		$ 303	$ (63)