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Schedule of Accrued Expenses (Detail) - USD ($)
$ in Thousands
Jun. 30, 2020
Mar. 31, 2020
Accounts Payable And Accrued Liabilities Current [Abstract]    
Payroll and Incentive Compensation $ 16,376 $ 25,584
Benefits 14,281 12,521
Interest 7,353 4,080
Property Taxes 9,002 6,676
Power and Fuel 1,365 1,353
Legal and Professional 16,110 16,096
Sales and use Tax 1,442 1,085
Other 9,553 5,898
Accrued Expenses, Total $ 75,482 $ 73,293