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Inventories (Schedule of Inventory, Current by major category) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Sep. 30, 2013
Inventory Disclosure [Abstract]    
Purchased components $ 21,677 $ 14,039
Work-in-process 27,058 20,960
Finished goods 36,358 33,470
Inventories $ 85,093 $ 68,469