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		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Total revenues	$ 53,438	$ 25,284	$ 106,297	$ 45,367
Americas [Member]
Segment Reporting Information [Line Items]
Total revenues	32,112	18,550	64,419	33,867
Asia/ Pacific [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 21,326	$ 6,734	$ 41,878	$ 11,500