Shareholders' Equity (Summary Of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Shareholders' Equity [Abstract]
Options Outstanding, Balance, beginning of period	2,151
Options Outstanding, Exercised	(7)
Options Outstanding, Forfeited/expired	(94)
Options Outstanding, Balance, end of period	2,050
Options exercisable, end of year, Options Outstanding	1,375
Weighted Avg Exercise Price, Balance beginning of period	$ 14.48
Weighted-Avg Exercise Price, Exercised	$ 10.88
Weighted-Avg Exercise Price, Forfeited/expired	$ 13.39
Weighted Avg Exercise Price, Balance, end of period	$ 14.55
Options exercisable, end of year, Weighted Avg. Exercise Price	$ 15.97
Weighted Avg Remaining Contractual Term	5 years 6 months 22 days
Options exercisable, end of period - Weighted-Avg Remaining Contractual Term	4 years 4 months 13 days
Aggregate Intrinsic Value	$ 3,209
Options exercisable, end of period - Aggregate Intrinsic Value	$ 2,118