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Summary of Significant Accounting Policies - Revenue from Unaffiliated Customers by Geographic Regions and Significant Geographic Area (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Mar. 31, 2012
Segment Reporting Information        
Total revenues $ 50,370 $ 36,212 $ 156,667 $ 81,579
Americas
       
Segment Reporting Information        
Total revenues 33,098 25,746 97,720 59,612
Asia/ Pacific
       
Segment Reporting Information        
Total revenues $ 17,272 $ 10,466 $ 58,947 $ 21,967