Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Change in Fair Value of Plan Assets (Detail)

v2.4.0.8
Employee Benefit Plans - Change in Fair Value of Plan Assets (Detail) (Other Postretirement Benefit Plans [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Other Postretirement Benefit Plans [Member]
   
Change in fair value of plan assets    
Fair value of plan assets at beginning of year      
Employer contribution 96 103
Benefit payments (96) (103)
Fair value of plan assets at end of year      
Funded status    
Funded status at end of year (951) (1,030)
Amount recognized in the Consolidated Balance Sheets $ (951) $ (1,030)