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Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands | Mar. 31, 2018 | Mar. 31, 2017
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Accounts Payable And Accrued Liabilities Current [Abstract] |  |
Payroll and Incentive Compensation | $ 25,290 | $ 22,850
Benefits | 13,785 | 11,503
Interest | 3,852 | 5,992
Property Taxes | 5,422 | 4,759
Power and Fuel | 1,545 | 1,536
Litigation Settlements | 45,098 |
Legal | 1,435 | 2,459
Sales and Use Tax | 890 | 944
Acquisition Related Expenses |  | 350
Other | 8,553 | 4,986
Accrued expenses, total | $ 105,870 | $ 55,379

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