Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Net loss	$ (5,822)	$ (14,257)	$ (54,056)	$ (56,931)
Other comprehensive income (loss):
Other comprehensive income before reclassifications	4,992	3,456	12,448	(603)
Amounts reclassified out of AOCI	25	206	190	(1,097)
Other comprehensive income (loss)	5,017	3,662	12,638	(1,700)
Total comprehensive loss	(805)	(10,595)	(41,418)	(58,631)
Foreign currency translation gains (losses)
Other comprehensive income (loss):
Other comprehensive income before reclassifications	3,879	3,456	12,510	(603)
Other comprehensive income (loss)	3,879	3,456	12,510	(603)
Defined benefit pension plans, net of tax impact
Other comprehensive income (loss):
Amounts reclassified out of AOCI	106	288	402	(854)
Other comprehensive income (loss)	106	288	402	(854)
Post-retirement plan adjustments
Other comprehensive income (loss):
Amounts reclassified out of AOCI	(81)	(82)	(212)	(243)
Other comprehensive income (loss)	(81)	(82)	(212)	(243)
Equity interest in investee’s other comprehensive income (loss)
Other comprehensive income (loss):
Other comprehensive income before reclassifications	1,113		(62)
Other comprehensive income (loss)	$ 1,113		$ (62)