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Inventories (Schedule Of Inventories) (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Inventory [Line Items]    
Components and parts $ 46,827 $ 37,482
Work-in-process 4,663 4,764
Inventory purchases in transit 56,955 57,474
Finished goods 416,001 389,263
Inventories $ 524,446 $ 488,983