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Inventories - Schedule of Components of Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Jun. 30, 2012
Inventories [Line Items]    
Raw materials $ 56,746 $ 59,105
Work in progress 41,436 39,292
Finished goods 37,079 39,210
Inventories, Total $ 135,261 $ 137,607