Income Taxes Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current tax expense:
Federal	$ 38,396	$ 32,610	$ 35,783
State	7,389	5,204	5,352
Total	45,785	37,814	41,135
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	(18,131)	(1,271)	(16,841)
State	(3,460)	1,106	283
Total	(21,591)	(165)	(16,558)
Total income tax expense	$ 24,194	$ 37,649	$ 24,577