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Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Schedule of Inventory [Line Items]    
Raw materials $ 191,590 $ 133,594
Work-in-process 116,790 83,375
Finished goods 327,810 276,578
Other 13,781 13,938
Inventory, Gross, Total 649,971 507,485
Adjustment to value inventory at cost on the LIFO method (95,823) (68,949)
Inventory, Net, Total $ 554,148 $ 438,536