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Inventories Inventories (Details) - USD ($)
$ in Thousands
Jul. 04, 2015
Jan. 03, 2015
Inventory Disclosure [Abstract]    
Raw materials and parts $ 134,682 $ 126,121
Work-in-process 29,900 17,828
Finished goods 127,354 111,827
Inventory, Gross, Total $ 291,936 $ 255,776