Common Shares And Stock-Based Awards Plans (Summary Of Stock Options) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Common Shares And Stock-Based Awards Plans [Abstract]
Number of Options, Outstanding, Beginning balance	4,240	4,525	4,825
Number of Options, Granted	348	432	399
Number of Options, Exercised	(713)	(375)	(257)
Number of Options, Forfeited or expired	791	342	442
Number of Options, Outstanding, Ending balance	3,084	4,240	4,525
Number of Options, Exercisable at December 31, 2013	2,360
Weighted-Average Exercise Price, Outstanding, Beginning balance	$ 19.88	$ 19.69	$ 19.18
Weighted-Average Exercise Price, Granted	$ 17.37	$ 15.77	$ 18.56
Weighted-Average Exercise Price, Exercised	$ (15.72)	$ (12.42)	$ (9.98)
Weighted-Average Exercise Price, Forfeited or expired	$ 22.88	$ 20.42	$ 18.74
Weighted-Average Exercise Price, Outstanding, Ending balance	$ 19.79	$ 19.88	$ 19.69
Weighted-Average Exercise Price, Exercisable at December 31, 2013	$ 20.63
Weighted-Average Remaining Contractual Term (Years), Outstanding	4 years 9 months 11 days
Weighted-Average Remaining Contractual Term (Years), Exercisable at December 31, 2012	3 years 8 months 1 day
Aggregate Intrinsic Value, Outstanding at December 31, 2013	$ 11,875
Aggregate Intrinsic Value, Exercisable at December 31, 2013	$ 7,494