CONDENSED 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 Interests
Beginning balance at Mar. 31, 2016	$ 274,672	$ 470,830	$ (145,856)	$ (14,046)	$ (39,802)	$ 0	$ 3,546
Statement of Consolidated Stockholders' Equity
Other comprehensive income (loss), net of tax				(2,274)	461	0
Ending balance at Jun. 30, 2016				(16,320)	(39,341)	0
Beginning balance at Mar. 31, 2016	274,672	470,830	(145,856)	(14,046)	(39,802)	0	3,546
Statement of Consolidated Stockholders' Equity
Net income (loss)	(47,152)		(47,163)				11
Stock-based compensation	845	845
Restricted stock surrendered	(14)	(14)
Other comprehensive income (loss), net of tax	(1,938)			(2,859)	921
Ending balance at Sep. 30, 2016	226,413	471,661	(193,019)	(16,905)	(38,881)	0	3,557
Beginning balance at Jun. 30, 2016				(16,320)	(39,341)	0
Statement of Consolidated Stockholders' Equity
Net income (loss)	(15,613)
Other comprehensive income (loss), net of tax	(125)			(585)	460	0
Ending balance at Sep. 30, 2016	226,413	471,661	(193,019)	(16,905)	(38,881)	0	3,557
Beginning balance at Mar. 31, 2017	206,710	472,349	(208,784)	(22,293)	(36,654)	(1,100)	3,192
Statement of Consolidated Stockholders' Equity
Other comprehensive income (loss), net of tax				3,742	459	(562)
Ending balance at Jun. 30, 2017				(18,551)	(36,195)	(1,662)
Beginning balance at Mar. 31, 2017	206,710	472,349	(208,784)	(22,293)	(36,654)	(1,100)	3,192
Statement of Consolidated Stockholders' Equity
Net income (loss)	(31,679)		(31,520)				(159)
Stock-based compensation	545	545
Restricted stock surrendered	(2)	(2)
Other comprehensive income (loss), net of tax	6,518			6,091	918	(491)
Ending balance at Sep. 30, 2017	182,092	472,892	(240,304)	(16,202)	(35,736)	(1,591)	3,033
Beginning balance at Jun. 30, 2017				(18,551)	(36,195)	(1,662)
Statement of Consolidated Stockholders' Equity
Net income (loss)	956
Other comprehensive income (loss), net of tax	2,879			2,349	459	71
Ending balance at Sep. 30, 2017	$ 182,092	$ 472,892	$ (240,304)	$ (16,202)	$ (35,736)	$ (1,591)	$ 3,033