Income Taxes - Summary of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 15,041	$ 23,407	$ 35,673
State	6,158	5,992	7,179
Total	21,199	29,399	42,852
Deferred:
Federal	(824)	(9,526)	2,924
State	140	(3,487)	(1,037)
Total	(684)	(13,013)	1,887
Tax provision	$ 20,515	$ 16,386	$ 44,739