STATEMENTS OF CONSOLIDATED STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Retained Deficit	Currency Translation Adjustment	Pensions, Net of Tax	Loss on Derivatives, Net of Tax	Noncontrolling Interest
Beginning balance at Mar. 31, 2014	$ 247,125	$ 465,682	$ (183,526)	$ (1,640)	$ (36,686)	$ 0	$ 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)	0
Ending balance at Mar. 31, 2015	194,064	468,564	(211,388)	(14,154)	(52,232)	0	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	0	7
Ending balance at Mar. 31, 2016	274,672	470,830	(145,856)	(14,046)	(39,802)	0	3,546
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(63,271)		(62,928)				(343)
Restricted stock surrendered	(32)	(32)
Stock-based compensation	1,551	1,551
Other comprehensive income (loss), net of tax	(6,210)			(8,247)	3,148	(1,100)	(11)
Ending balance at Mar. 31, 2017	$ 206,710	$ 472,349	$ (208,784)	$ (22,293)	$ (36,654)	$ (1,100)	$ 3,192