Consolidated Statements of Stockholders' Equity (USD $) In Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Defined Benefit Plans	Derivatives Qualifying as Hedges	Cumulative Translation Adjustment	Non- controlling Interest
Beginning Balance at Mar. 31, 2010		$ 756	$ 1,119,959	$ (799,095)	$ (38,398)	$ (3,485)	$ 52,597	$ 15,704
Net income	26,443			26,443				369
Defined benefit plans	11,505				11,505			0
Translation adjustment	24,629						23,846	783
Net recognition of unrealized loss on derivatives						3,475		0
Increase in ownership of sub.			917					(15,754)
Common stock issuance/other		19	(319)					0
Stock compensation			6,567					0
Ending Balance at Mar. 31, 2011		775	1,127,124	(772,652)	(26,893)	(10)	76,443	1,102
Net income	56,739			56,739				(785)
Defined benefit plans	(43,050)				(43,050)			0
Translation adjustment	(22,420)						(22,866)	446
Net recognition of unrealized loss on derivatives						(117)		0
Common stock issuance/other		8	1,141					(205)
Stock compensation			5,152					0
Ending Balance at Mar. 31, 2012	402,352	783	1,133,417	(715,913)	(69,943)	(127)	53,577	558
Net income	(223,399)			(223,399)				308
Defined benefit plans	(13,719)				(13,719)			0
Translation adjustment	(17,359)						(17,354)	(5)
Net recognition of unrealized loss on derivatives						127		0
Common stock issuance/other		10	(11)					(1)
Stock compensation			5,624					0
Ending Balance at Mar. 31, 2013	$ 153,932	$ 793	$ 1,139,030	$ (939,312)	$ (83,662)	$ 0	$ 36,223	$ 860