Property And Equipment, Net (Schedule Of Property And Equipment, Net) (Detail) (USD $)											12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Land [Member]	Dec. 31, 2011 Land [Member]	Dec. 31, 2012 Building and Leasehold Improvements [Member]	Dec. 31, 2011 Building and Leasehold Improvements [Member]	Dec. 31, 2012 Machinery and Equipment [Member]	Dec. 31, 2011 Machinery and Equipment [Member]	Dec. 31, 2012 Office Furniture and Equipment [Member]	Dec. 31, 2011 Office Furniture and Equipment [Member]	Dec. 31, 2012 Minimum [Member] Building and Leasehold Improvements [Member]	Dec. 31, 2012 Minimum [Member] Machinery and Equipment [Member]	Dec. 31, 2012 Minimum [Member] Office Furniture and Equipment [Member]	Dec. 31, 2012 Maximum [Member] Building and Leasehold Improvements [Member]	Dec. 31, 2012 Maximum [Member] Machinery and Equipment [Member]	Dec. 31, 2012 Maximum [Member] Office Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment gross	$ 631,300,000	$ 475,700,000	$ 4,800,000	$ 4,700,000	$ 15,400,000	$ 12,500,000	$ 518,300,000	$ 381,600,000	$ 92,800,000	$ 76,900,000
Less accumulated depreciation	(280,900,000)	(212,700,000)
Property and equipment, net	$ 350,355,000	$ 263,007,000
Estimated useful lives											5 years	2 years	3 years	40 years	15 years	7 years