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Acquired Intangibles - Additional Information (Detail) (USD $)
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3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
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Mar. 31, 2014
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Mar. 31, 2013
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Mar. 31, 2014
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Mar. 31, 2013
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| Goodwill And Intangible Assets Disclosure [Abstract] | ||||
| Total amortization expense for intangible assets | $ 2,600,000 | $ 262,000 | $ 4,759,000 | $ 763,000 |