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Inventories (Schedule of Inventories) (Details) (USD $)
In Thousands
Jul. 02, 2011
Jan. 01, 2011
Inventories    
Components and parts $ 42,508 $ 23,292
Work-in-process 5,748 4,176
Inventory purchases in transit 62,837 47,455
Finished goods 339,605 297,012
Inventories $ 450,698 $ 371,935