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Common Stock Purchases - Additional Information (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified |
1 Months Ended | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|---|
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Nov. 30, 2012
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Apr. 06, 2013
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Mar. 31, 2012
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Apr. 06, 2013
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Mar. 31, 2012
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| Common stock repurchase program, authorized amount | $ 30 | ||||
| Number of shares repurchased during the period | 3.7 | 0 | 5.5 | 0 | |
| Common stock repurchased, average price per share | $ 3.88 | $ 3.88 | |||
| Common stock repurchased, aggregate purchase price | $ 14.4 | $ 21.2 | |||