Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Weighted Average Actuarial Assumptions Used to Determine Benefit Obligation (Detail)

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Employee Benefit Plans - Weighted Average Actuarial Assumptions Used to Determine Benefit Obligation (Detail) (Pension Plans, Defined Benefit [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Pension Plans, Defined Benefit [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 4.46% 4.28%
Rate of increase in compensation levels 3.00% 3.00%
Change in fair value of plan assets    
Fair value of plan assets at beginning of year $ 34,627 $ 32,668
Actual return on plan assets 5,015 3,538
Benefit and administrative expense payments (1,094) (1,579)
Fair value of plan assets at end of year 38,548 34,627
Funded status    
Funded status at end of year 5,759 2,349
Amount recognized in the Consolidated Balance Sheets $ 5,759 $ 2,349