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Summary of Significant Accounting Policies - Schedule of Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Mar. 31, 2014
Inventories    
Raw material $ 9,612us-gaap_InventoryRawMaterialsNetOfReserves $ 9,366us-gaap_InventoryRawMaterialsNetOfReserves
Work-in-process 15,376us-gaap_InventoryWorkInProcessNetOfReserves 14,418us-gaap_InventoryWorkInProcessNetOfReserves
Finished goods 40,503us-gaap_InventoryFinishedGoodsNetOfReserves 35,468us-gaap_InventoryFinishedGoodsNetOfReserves
Inventory, net $ 65,491us-gaap_InventoryNet $ 59,252us-gaap_InventoryNet