Income Taxes (Schedule Of Components Of The Income Taxes (Benefit)) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
Current tax provision (benefit): Federal									$ 286	$ (3,663)	$ 4,723
Current tax provision (benefit): Foreign									353
Current tax provision (benefit): State									727	2,730	2,244
Current tax provision (benefit)									1,366	(933)	6,967
Deferred tax provision (benefit): Federal									132	(13,705)	(208)
Deferred tax provision (benefit): State									(48)	115	8
Deferred tax provision (benefit)									84	(13,590)	(200)
Income Tax Expense (Benefit), Total	$ 12,267	$ (5,706)	$ (2,684)	$ (2,427)	$ (13,929)	$ (3,560)	$ 1,343	$ 1,623	$ 1,450	$ (14,523)	$ 6,767