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Interest Expense, Net (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Interest Income (Expense), Net [Abstract]        
Interest (Income) $ (4) $ (19) $ (10) $ (23)
Interest Expense 6,363 5,982 20,692 15,078
Other Expenses 294 235 910 700
Interest Expense, net $ 6,653 $ 6,198 $ 21,592 $ 15,755