Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Details 4)

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Employee Benefit Plans (Details 4) (Pension plans, defined benefit [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Pension plans, defined benefit [Member]
     
Summary of amounts recognized in accumulated other comprehensive loss, net of income tax      
Net actuarial losses $ 8,278 $ 8,508  
Prior service cost 5 7  
Total $ 8,283 $ 8,515 $ 5,418