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Accounts Payable and Accrued Expenses - Schedule of Accounts Payable and Accrued Expenses (Detail) - USD ($) $ in Thousands | Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2014
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Payables And Accruals [Abstract] |  |  |
Accounts payable | $ 5,837 | $ 7,062 |
Accrued inventories in-transit | 1,908 | 1,127 |
Accrued other miscellaneous expenses | 3,003 | 3,254 |
Accrued compensation | 7,526 | 5,960 |
Income taxes payable | 1,281 | 278 |
Accrued warranty | 3,601 | 3,934 | $ 3,207
Total | $ 23,156 | $ 21,615 |

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