Income Taxes (Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Current federal	$ (58,723)	$ 12,172	$ 7,594
Current state	(132)	6,087	5,538
Total current provision	(58,855)	18,259	13,132
Deferred federal	(17,000)	46,290	41,078
Deferred state	(3,716)	810	4,136
Total deferred provision	(20,716)	47,100	45,214
Total included in net income	$ (79,571)	$ 65,359	$ 58,346

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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