Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Detail)

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Accumulated Other Comprehensive Income (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Jun. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Foreign currency translation adjustments $ (16,818) $ (20,743)
Net unrealized gain on available-for-sale investments, net of tax 28,959 42,518
Accumulated other comprehensive income $ 12,141 $ 21,775