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Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands | Mar. 31, 2016 | Mar. 31, 2015
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Accounts Payable And Accrued Liabilities Current [Abstract] |  |
Payroll and Incentive Compensation | $ 19,956 | $ 19,082
Benefits | 10,663 | 9,951
Interest | 3,373 | 4,524
Property Taxes | 4,186 | 3,189
Power and Fuel | 1,390 | 1,619
Legal | 1,486 | 1,673
Sales and Use Tax | 549 | 523
Acquisition Related Expenses |  | 1,355
Other | 4,372 | 4,914
Accrued expenses, total | $ 45,975 | $ 46,830

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