Share-Based Compensation (Schedule Of Compensation Cost For Stock Options And Unvested Shares) (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Stock-based compensation expense			$ 10,082	$ 9,330
Stock Options [Member] | Cost of Goods Sold [Member]
Stock-based compensation expense	208	271	443	529
Unvested Shares [Member] | Cost of Goods Sold [Member]
Stock-based compensation expense	150	138	298	265
Stock Options [Member] | Selling, General and Administrative Expenses [Member]
Stock-based compensation expense	1,930	1,906	3,983	3,863
Unvested Shares [Member] | Selling, General and Administrative Expenses [Member]
Stock-based compensation expense	2,945	2,267	5,358	4,673
Stock Options [Member]
Stock-based compensation expense	2,138	2,177	4,426	4,392
Income tax benefit	(716)	(713)	(1,452)	(1,413)
Total expense after income taxes	1,422	1,464	2,974	2,979
Unvested Shares [Member]
Stock-based compensation expense	3,095	2,405	5,656	4,938
Income tax benefit	(582)	(483)	(1,086)	(1,050)
Total expense after income taxes	$ 2,513	$ 1,922	$ 4,570	$ 3,888