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Commitments and Contingencies - Additional Information (Detail) (USD $)
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3 Months Ended | 9 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
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Mar. 31, 2015
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Mar. 31, 2014
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Mar. 31, 2015
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Mar. 31, 2014
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Jun. 30, 2014
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Jan. 14, 2008
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| Loss Contingencies [Line Items] | ||||||
| Adverse effect on earnings per share resulting from changing sales forecasts | $ 1.00 | |||||
| Costs relating to delayed delivery of product | $ 9,800,000 | $ 0 | $ 24,500,000 | |||
| Gain relating to contingency | 6,100,000 | |||||
| Amount of potential liability including interest | 1,400,000 | 1,400,000 | ||||
| Potential payments remitted during period | 0 | 0 | 12,000,000 | |||
| Cost of Sales [Member] | ||||||
| Loss Contingencies [Line Items] | ||||||
| Reduction in estimated accruals | $ 0 | $ 15,900,000 | ||||