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Fair Value (table) (detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Mar. 31, 2014
Fair Value Disclosures [Abstract]    
Long-term Debt, Gross $ 274,164us-gaap_DebtInstrumentCarryingAmount $ 218,516us-gaap_DebtInstrumentCarryingAmount
Long-term Debt, Fair Value $ 274,999us-gaap_LongTermDebtFairValue $ 219,981us-gaap_LongTermDebtFairValue