Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 0	$ 0	$ 42,805
State	4	0	1,210
Deferred and Other:
Federal	0	(2,000)	(40,805)
State	0	0	0
Total tax expense (benefit)	$ 4	$ (2,000)	$ 3,210