Income Taxes - Components of Income Tax Benefit or Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 6,271	$ 5,204	$ 11,269
State	8,637	8,558	10,218
Total current	14,908	13,762	21,487
Deferred:
Federal	(7,691)	(8,575)	(29,243)
State	(2,694)	(4,882)	(5,590)
Revaluation of deferred taxes due to change in tax rate	90,914	0	0
Total deferred	80,529	(13,457)	(34,833)
Total expense (benefit)	$ 95,437	$ 305	$ (13,346)