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Inventories (Schedule Of Inventories) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Jan. 01, 2011
Inventories [Abstract]    
Components and parts $ 37,482 $ 23,292
Work-in-process 4,764 4,176
Inventory purchases in transit 57,474 47,455
Finished goods 389,263 297,012
Inventories $ 488,983 $ 371,935