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Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Statement of Comprehensive Income [Abstract]        
Defined benefit pension and other postretirement plans, tax $ 107 $ 46 $ 322 $ 137