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, 2020	$ (781,264)	$ 52	$ 804,830	$ (36,217)	$ (746,448)	$ (803,481)
Balance (in shares) at Mar. 31, 2020		51,858,089
Net loss	(275,786)					(275,786)
Foreign currency translation adjustment	919				919
Pension liability adjustment, net of income taxes	4,265				4,265
Change in fair value of foreign currency hedges, net of income taxes	2,100				2,100
Share-based compensation	2,621		(6,670)	9,291
Share-based compensation, shares		158,274
Repurchase of shares for share-based compensation minimum tax obligation	(474)			(474)
Repurchase of shares for share-based compensation minimum tax obligation, shares		(50,955)
Employee stock purchase plan	238		(1,974)	2,212
Employee stock purchase plan, shares		36,802
Balance at Jun. 30, 2020	(1,047,381)	$ 52	796,186	(25,188)	(739,164)	(1,079,267)
Balance (in shares) at Jun. 30, 2020		52,002,210
Balance at Mar. 31, 2021	(818,853)	$ 64	978,272	(12,606)	(530,192)	(1,254,391)
Balance (in shares) at Mar. 31, 2021		64,185,001
Net loss	(30,351)					(30,351)
Foreign currency translation adjustment	2,749				2,749
Pension liability adjustment, net of income taxes	20,629				20,629
Change in fair value of foreign currency hedges, net of income taxes	(706)				(706)
Share-based compensation	2,470		(11,505)	13,975
Share-based compensation, shares		355,821
Repurchase of shares for share-based compensation minimum tax obligation	(2,336)			(2,336)
Repurchase of shares for share-based compensation minimum tax obligation, shares		(116,796)
Employee stock purchase plan	172		(235)	407
Employee stock purchase plan, shares		9,794
Balance at Jun. 30, 2021	$ (826,226)	$ 64	$ 966,532	$ (560)	$ (507,520)	$ (1,284,742)
Balance (in shares) at Jun. 30, 2021		64,433,820