Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail) $ in Millions |
12 Months Ended |
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Mar. 31, 2016
USD ($)
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| Statement of Comprehensive Income [Abstract] | |
| Other comprehensive loss before reclassifications | $ 0.3 |
| X | ||||||||||
- Definition Amount after tax of reclassification adjustment from accumulated other comprehensive (income) loss related to net period benefit cost (credit) for pension and other postretirement defined benefit plans. No definition available.
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| X | ||||||||||
- References No definition available.
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