Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Directors	Common Stock	Treasury Stock	Additional  Paid-in Capital	Additional  Paid-in Capital Directors	Retained Earnings	Accumulated Other  Comprehensive  Loss
Beginning balance at Mar. 31, 2022	$ 772,803		$ 285	$ 0	$ 506,074		$ 316,343	$ (49,899)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	8,391						8,391
Change in foreign currency translation adjustment	(8,701)							(8,701)
Change in derivative qualifying as hedges, net of tax	2,689							2,689
Change in pension liability and postretirement obligations, net of tax	146							146
Stock compensation expense	751				751
Stock options exercised	415				415
Restricted stock units released	(1,313)		1		(1,314)
Ending balance at Jun. 30, 2022	775,181		286	0	505,926		324,734	(55,765)
Beginning balance at Mar. 31, 2022	772,803		285	0	506,074		316,343	(49,899)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	34,534
Change in foreign currency translation adjustment	(7,210)
Change in derivative qualifying as hedges, net of tax	9,337
Change in pension liability and postretirement obligations, net of tax	82
Ending balance at Dec. 31, 2022	810,881		286	(1,001)	512,418		346,868	(47,690)
Beginning balance at Jun. 30, 2022	775,181		286	0	505,926		324,734	(55,765)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	14,114						14,114
Dividends declared	(2,004)						(2,004)
Change in foreign currency translation adjustment	(10,781)							(10,781)
Change in derivative qualifying as hedges, net of tax	4,686							4,686
Change in pension liability and postretirement obligations, net of tax	166							166
Stock compensation expense	2,341	$ 537			2,341	$ 537
Stock options exercised	206				206
Restricted stock units released	(62)				(62)
Ending balance at Sep. 30, 2022	784,384		286	0	508,948		336,844	(61,694)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	12,029						12,029
Dividends declared	(2,005)						(2,005)
Change in foreign currency translation adjustment	12,272							12,272
Change in derivative qualifying as hedges, net of tax	1,962							1,962
Change in pension liability and postretirement obligations, net of tax	(230)							(230)
Stock compensation expense	3,094	316			3,094	316
Stock options exercised	83				83
Treasury stock purchase	(1,001)			(1,001)
Restricted stock units released	(23)				(23)
Ending balance at Dec. 31, 2022	810,881		286	(1,001)	512,418		346,868	(47,690)
Beginning balance at Mar. 31, 2023	833,797		286	(1,001)	515,797		356,758	(38,043)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	9,275						9,275
Change in foreign currency translation adjustment	2,901							2,901
Change in derivative qualifying as hedges, net of tax	541							541
Change in pension liability and postretirement obligations, net of tax	42							42
Stock compensation expense	1,981				1,981
Stock options exercised	225				225
Restricted stock units released	(1,805)		1		(1,806)
Ending balance at Jun. 30, 2023	846,957		287	(1,001)	516,197		366,033	(34,559)
Beginning balance at Mar. 31, 2023	833,797		286	(1,001)	515,797		356,758	(38,043)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	34,816
Change in foreign currency translation adjustment	6,557
Change in derivative qualifying as hedges, net of tax	(3,930)
Change in pension liability and postretirement obligations, net of tax	4,429
Ending balance at Dec. 31, 2023	878,437		288	(1,001)	522,587		387,550	(30,987)
Beginning balance at Jun. 30, 2023	846,957		287	(1,001)	516,197		366,033	(34,559)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	15,813						15,813
Dividends declared	(2,012)						(2,012)
Change in foreign currency translation adjustment	(9,683)							(9,683)
Change in derivative qualifying as hedges, net of tax	(265)							(265)
Change in pension liability and postretirement obligations, net of tax	(208)							(208)
Stock compensation expense	2,696	587			2,696	587
Stock options exercised	265				265
Restricted stock units released	(152)				(152)
Ending balance at Sep. 30, 2023	853,998		287	(1,001)	519,593		379,834	(44,715)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	9,728
Dividends declared	(2,012)						(2,012)
Change in foreign currency translation adjustment	13,339							13,339
Change in derivative qualifying as hedges, net of tax	(4,206)							(4,206)
Change in pension liability and postretirement obligations, net of tax	4,595							4,595
Stock compensation expense	2,916	$ 293			2,916	$ 293
Stock options exercised	66				66
Restricted stock units released	(280)		1		(281)
Ending balance at Dec. 31, 2023	$ 878,437		$ 288	$ (1,001)	$ 522,587		$ 387,550	$ (30,987)