Income Taxes (Income Tax Provision (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current taxes:
Federal	$ (1,332)	$ 1,332	$ 0
Foreign	0	1	0
State	1,235	138	1,043
Deferred taxes:
Federal	19,701	14,155	15,642
Foreign	0	0	(63)
State	(1,209)	(3,677)	2,973
Total deferred tax expense	18,492	10,478	18,552
Total income tax expense from continuing operations	16,314	11,589	19,595
Income tax expense (benefit) from discontinued operations	2,081	360	434
2017 Tax Cuts and Jobs Act [Member]
Deferred taxes:
Federal	$ 0	$ 0	$ 0