Income Taxes (Provision For Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Income Taxes [Abstract]
Current: Federal									$ 12,260		$ 676		$ 1,211
Current: State									2,326		3,519		1,767
Current provision (benefit), Total									14,586		4,195		2,978
Deferred: Federal									601		22,824		(14,368)
Deferred: State									1,471		4,620		1,688
Deferred income taxes, Total									2,072		27,444		(12,680)
Provision (benefit) for income taxes	$ 1,590	$ 14,682	$ (1,338)	$ 1,724	$ 9,642	$ 6,742	$ 8,655	$ 6,600	$ 16,658	[1]	$ 31,639	[1]	$ (9,702)	[1]

[1] Expected tax is computed based upon income before income taxes.