Stock Compensation (Summary Of Stock Option Activity) (Details) (Stock Option [Member], USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Beginning Balance, Shares	2,200,000	2,281,000	1,987,000
Granted, Shares	159,000	599,000	451,000
Exercised, Shares	(48,000)	(260,000)	(4,000)
Forfeited, Shares	(2,000)	(100,000)	(15,000)
Expired, Shares	(249,000)	(320,000)	(138,000)
Outstanding, Ending Balance, Shares	2,060,000	2,200,000	2,281,000	1,987,000
Vested and expected to vest, Shares	2,043,000
Exercisable, Shares	1,412,000
Outstanding, Beginning Balance, Weighted Average Exercise Price	$ 6.83	$ 6.74	$ 6.92
Granted, Weighted Average Exercise Price	$ 5.67	$ 5.13	$ 6.96
Exercised, Weighted Average Exercise Price	$ 5.64	$ 4.53	$ 4.49
Forfeited, Weighted Average Exercise Price	$ 7.01	$ 5.60	$ 6.11
Expired, Weighted Average Exercise Price	$ 7.03	$ 5.30	$ 10.20
Outstanding, Ending Balance, Weighted Average Exercise Price	$ 6.74	$ 6.83	$ 6.74	$ 6.92
Vested and expected to vest, Weighted Average Exercise Price	$ 6.75
Exercisable, Weighted Average Exercise Price	$ 7.25
Outstanding, Weighted Average Remaining Contractual Term in years	3 years 7 months 24 days	4 years	3 years 5 months 16 days	3 years 7 months 2 days
Vested and expected to vest, Weighted Average Remaining Contractual Term in Years	3 years 7 months 21 days
Exercisable, Weighted Average Remaining Contractual Term in years	3 years 11 days
Outstanding, Aggregate Intrinsic Value	$ 1,225,000		$ 603,000	$ 1,731,000
Vested and expected to vest, Aggregate Intrinsic Value	1,211,000
Exercisable, Aggregate Intrinsic Value	$ 743,000