Income Taxes - Effective Income Tax (Benefit) Expense Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income tax expense	$ 1,001	$ 303	$ 341	$ 1,660
Effective income tax rate	(10.90%)	2.50%	(6.30%)	9.10%
Federal statutory tax rate	21.00%		21.00%