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Discontinued Operations - Additional Information (Detail) (USD $)
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12 Months Ended | 0 Months Ended | |
|---|---|---|---|
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Apr. 30, 2014
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Jun. 04, 2014
Subsequent event
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Jun. 12, 2012
PowerReviews
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| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | |||
| Business acquisition total consideration | $ 150,754,000 | ||
| Definitive agreement to divest PowerReviews, expected cash proceed | 30,000,000 | ||
| Estimated pro forma loss on disposal of discontinued operations, net of taxes | $ (9,192,000) |