Earnings Per Share (Schedule Of Computation Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Earnings Per Share [Abstract]
Income (loss) from continuing operations	$ (3,736)	$ 7,022	$ 7,915	$ 1,449	$ (6,854)	$ 7,383	$ 7,246	$ 1,441	$ 12,650	$ 9,216	$ (75,356)
(Loss) income from discontinued operations	(188)	279	(9)	(87)	249	(469)	559	6,968	(5)	7,307	(15,712)
Net income (loss)	$ (3,924)	$ 7,301	$ 7,906	$ 1,362	$ (6,605)	$ 6,914	$ 7,805	$ 8,409	$ 12,645	$ 16,523	$ (91,068)
Weighted average shares outstanding									30,752	30,507	30,303
Common stock options and restricted stock									105	143
Weighted average shares and conversions									30,857	30,650	30,303