Income Taxes - Schedule of Income Tax Expense (Benefit) from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ (106,487)	$ (513,293)	$ (89,149)
State	5,774	(46,218)	(5,184)
Subtotal	(100,713)	(559,511)	(94,333)
Deferred:
Federal	(213,397)	20,496	(1,039,769)
State	(61,666)	(157,496)	(54,314)
Subtotal	(275,063)	(137,000)	(1,094,083)
Total income tax benefit	$ (375,776)	$ (696,511)	$ (1,188,416)