Pension And Other Postretirement Benefit Plans (Funded Status In Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Non-current liability (reported as pensions and other postretirement benefits)	$ (97,048)	$ (85,081)
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Non-current asset (reported in other noncurrent assets)	1,900	2,476
Current liability (included in accounts payable and accrued expenses)	(5,458)	(764)
Non-current liability (reported as pensions and other postretirement benefits)	(60,797)	(48,358)
Amounts recognized in the consolidated balance sheets	(64,355)	(46,646)
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)	(2,497)	(2,587)
Non-current liability (reported as pensions and other postretirement benefits)	(36,251)	(36,724)
Amounts recognized in the consolidated balance sheets	$ (38,748)	$ (39,311)