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Schedule of Other Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Mar. 31, 2013
Other Assets, Accrued Expenses, Other Current Liabilities, And Other Liabilities And Deferred Credits [Abstract]    
Recoverable insurance losses $ 5,219 $ 10,833
Deferred income tax assets 34,376 73,105
Deferred finance charges - revolver 8,728 5,133
Savings plans and supplemental plan 23,212 23,149
Noncurrent tax receivable 9,106 9,106
Other 15,744 4,951
Total other assets $ 96,385 $ 126,277