Quarterly report pursuant to sections 13 or 15(d)

Contingent Liabilities (Parenthetical) (Detail)

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Contingent Liabilities (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Mar. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Contingent liability, discount $ 762 $ 159