Income Taxes (Components Of Benefit (Provision) For Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current:
Federal									$ (4,791)	$ (159)	$ (13,290)
State									(2,946)	(925)	(1,501)
Total Current									(7,737)	(1,084)	(14,791)
Deferred:
Federal									(6,437)	(8,389)	5,175
State									29	(110)	687
Total Deferred									(6,408)	(8,499)	5,862
Total provision for income taxes	$ (1,738)	$ (4,934)	$ (4,621)	$ (2,852)	$ (5,020)	$ (5,236)	$ 6,157	$ (5,484)	$ (14,145)	$ (9,583)	$ (8,929)