Employee Benefit Plans (Schedule Of Stock Option Activity) (Details) (Stock Options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares, Beginning Balance (in shares)	4,324
Number of Shares, Granted (in shares)	503
Number of Shares, Exercised (in shares)	(352)
Number of Shares, Cancelled (in shares)	(249)
Number of shares, expired (in shares)	(61)
Number of Shares, Ending Balance (in shares)	4,165
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, Beginning Balance (in dollars per share)	$ 29.29
Grants in Period, Weighted Average Exercise Price (in dollars per share)	$ 33.45
Exercises in Period, Weighted Average Exercise Price (in dollars per share)	$ 21.28
Cancelled, Weighted Average Exercise Price (in dollars per share)	$ 34.27
Expired, Weighted Average Exercise Price (in dollars per share)	$ 33.78
Weighted Average Exercise Price, Ending Balance (in dollars per share)	$ 30.11
Outstanding, Weighted Average Remaining Contractual Term	6 years 6 months 10 days
Outstanding, Intrinsic Value	$ 16,376
Vested and Expected to Vest, Number	4,008
Vested and Expected to Vest, Weighted Average Exercise Price	$ 29.98
Vested and Expected to Vest, Weighted Average Remaining Contractual Term	6 years 4 months 24 days
Vested and Expected to Vest, Aggregate Intrinsic Value	16,282
Exercisable, Number	2,695
Exercisable, Weighted Average Exercise Price	$ 28.29
Exercisable, Weighted Average Remaining Contractual Term	5 years 6 months
Exercisable, Intrinsic Value	$ 15,245