Shareholders' Equity (Schedule Of Share Repurchases) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended		9 Months Ended
	May 01, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Stockholders' Equity Note [Abstract]
Stock Repurchase Program, Authorized Amount	$ 500,000
Shares repurchased, shares		654,851	1,282,164	4,616,543	4,103,499
Cost of shares repurchased		$ 24,996	$ 40,574	$ 164,528	$ 123,145
Shares repurchased, average price per share		$ 38.17	$ 31.64	$ 35.64	$ 30.01
Treasury shares held for issuance pursuant to equity-based compensation plans	3,000,000