STATEMENTS OF CONSOLIDATED STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Retained Deficit [Member]	Currency Translation Adjustment [Member]	Pensions, Net of Tax [Member]	Noncontrolling Interest [Member]
Beginning balance at Mar. 31, 2013	$ 328,142	$ 460,914	$ (80,993)	$ (5,724)	$ (49,693)	$ 3,638
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(102,876)		(102,533)			(343)
Restricted stock surrendered	(337)	(337)
Stock-based compensation	5,105	5,105
Other comprehensive income (loss), net of tax	17,091			4,084	13,007
Ending balance at Mar. 31, 2014	247,125	465,682	(183,526)	(1,640)	(36,686)	3,295
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(28,034)		(27,862)			(172)
Acquisition of noncontrolling interest	151					151
Restricted stock surrendered	(146)	(146)
Stock-based compensation	3,028	3,028
Other comprehensive income (loss), net of tax	(28,060)			(12,514)	(15,546)
Ending balance at Mar. 31, 2015	194,064	468,564	(211,388)	(14,154)	(52,232)	3,274
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	65,445		65,532			(87)
Acquisition of noncontrolling interest	352					352
Restricted stock surrendered	(157)	(157)
Stock-based compensation	2,423	2,423
Other comprehensive income (loss), net of tax	12,545			108	12,430	7
Ending balance at Mar. 31, 2016	$ 274,672	$ 470,830	$ (145,856)	$ (14,046)	$ (39,802)	$ 3,546