Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Detail) (USD $) In Thousands, unless otherwise specified					12 Months Ended				12 Months Ended				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Land And Improvements [Member]	Dec. 31, 2011 Land And Improvements [Member]	Dec. 31, 2012 Land And Improvements [Member] Minimum [Member]	Dec. 31, 2012 Land And Improvements [Member] Maximum [Member]	Dec. 31, 2012 Buildings [Member]	Dec. 31, 2011 Buildings [Member]	Dec. 31, 2012 Buildings [Member] Minimum [Member]	Dec. 31, 2012 Buildings [Member] Maximum [Member]	Dec. 31, 2012 Machinery, Equipment And Other [Member]	Dec. 31, 2011 Machinery, Equipment And Other [Member]	Dec. 31, 2012 Machinery, Equipment And Other [Member] Minimum [Member]	Dec. 31, 2012 Machinery, Equipment And Other [Member] Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)					10 years	25 years			15 years	40 years			3 years	10 years
Property, plant and equipment, gross	$ 501,038	$ 453,701	$ 26,650	$ 26,034			$ 185,559	$ 177,428			$ 288,829	$ 250,239
Less accumulated depreciation	(205,056)	(179,102)
Property, plant and equipment, net	$ 295,982	$ 274,599