Condensed Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]		Accumulated Deficit [Member]
Balance at Mar. 31, 2023	$ (797,396)	$ 65	$ 964,741		$ (554,646)	[1]	$ (1,207,556)
Balance (in shares) at Mar. 31, 2023		65,432,589
Net loss	(18,163)						(18,163)
Foreign currency translation adjustment	3,704				3,704
Pension liability adjustment, net of income taxes	5,173				5,173
Change in fair value of foreign currency hedges, net of income taxes	(337)				(337)
Share-based compensation	3,622		3,622
Share-based compensation, shares		300,102
Repurchase of restricted shares for minimum tax obligation	(1,235)			$ (1,235)
Repurchase of restricted shares for minimum tax obligation, shares		(103,996)
Retirement of treasury shares			(414)	414
Employee stock purchase plan	150		150
Employee stock purchase plan, shares		12,907
Warrant exercises, net of income taxes	13,482	$ 1	13,481
Warrant exercises, net of income taxes, shares		1,122,438
Issuance of shares on pension contribution	39,136	$ 4	38,311	821
Issuance of shares on pension contribution, shares		3,200,000
Balance at Jun. 30, 2023	(751,864)	$ 70	1,019,891		(546,106)	[1]	(1,225,719)
Balance (in shares) at Jun. 30, 2023		69,964,040
Balance at Mar. 31, 2024	(104,414)	$ 77	1,107,750		(517,069)	[1]	(695,172)
Balance (in shares) at Mar. 31, 2024		76,923,691
Net loss	(14,091)						(14,091)
Foreign currency translation adjustment	(6,376)				(6,376)
Pension liability adjustment, net of income taxes	5,923				5,923
Change in fair value of foreign currency hedges, net of income taxes	(1,614)				(1,614)
Share-based compensation	3,015		3,015
Share-based compensation, shares		473,076
Repurchase of restricted shares for minimum tax obligation	(2,132)			(2,132)
Repurchase of restricted shares for minimum tax obligation, shares		(158,885)
Retirement of treasury shares			(2,132)	$ 2,132
Employee stock purchase plan	128		128
Employee stock purchase plan, shares		8,920
Balance at Jun. 30, 2024	$ (119,561)	$ 77	$ 1,108,761		$ (519,136)	[1]	$ (709,263)
Balance (in shares) at Jun. 30, 2024		77,246,802

[1] Net of tax