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Pension And Other Postretirement Benefit Plans (Funded Status In Consolidated Balance Sheets) (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Mar. 31, 2015
Defined Benefit Plan Disclosure [Line Items]    
Non-current liability (reported as pensions and other postretirement benefits) $ (92,177) $ (97,048)
Pension Benefits [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Non-current asset (reported in other noncurrent assets) 2,044 1,900
Current liability (included in accounts payable and accrued expenses) (630) (5,458)
Non-current liability (reported as pensions and other postretirement benefits) (59,060) (60,797)
Amounts recognized in the consolidated balance sheets (57,646) (64,355)
Other Postretirement Benefits [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Non-current asset (reported in other noncurrent assets) 0 0
Current liability (included in accounts payable and accrued expenses) (2,543) (2,497)
Non-current liability (reported as pensions and other postretirement benefits) (33,117) (36,251)
Amounts recognized in the consolidated balance sheets $ (35,660) $ (38,748)