Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning Balance at May. 31, 2021	$ 840,377	$ 17,195	$ 294,953	$ (11,375)	$ 539,604
Beginning Balance (in shares) at May. 31, 2021		107,468,000
Exercise of options and share-based compensation expense	1,839	$ 1	1,838
Exercise of options and share-based compensation expense (in shares)		6,000
Issuance of shares under employee stock purchase plan	899	$ 3	896
Issuance of shares under employee stock purchase plan (in shares)		19,000
Net income	17,077				17,077
Other comprehensive loss	(4,829)			(4,829)
Ending Balance at Aug. 31, 2021	855,363	$ 17,199	297,687	(16,204)	556,681
Ending Balance (in shares) at Aug. 31, 2021		107,493,000
Beginning Balance at May. 31, 2021	840,377	$ 17,195	294,953	(11,375)	539,604
Beginning Balance (in shares) at May. 31, 2021		107,468,000
Net income	27,905
Ending Balance at Nov. 30, 2021	865,476	$ 17,243	304,959	(24,235)	567,509
Ending Balance (in shares) at Nov. 30, 2021		107,768,000
Beginning Balance at Aug. 31, 2021	855,363	$ 17,199	297,687	(16,204)	556,681
Beginning Balance (in shares) at Aug. 31, 2021		107,493,000
Exercise of options and share-based compensation expense	7,316	$ 44	7,272
Exercise of options and share-based compensation expense (in shares)		275,000
Net income	10,828				10,828
Other comprehensive loss	(8,031)			(8,031)
Ending Balance at Nov. 30, 2021	865,476	$ 17,243	304,959	(24,235)	567,509
Ending Balance (in shares) at Nov. 30, 2021		107,768,000
Beginning Balance at May. 31, 2022	$ 887,374	$ 17,248	309,984	(27,769)	587,911
Beginning Balance (in shares) at May. 31, 2022	107,801,094	107,801,000
Exercise of options and share-based compensation expense	$ 1,905	$ 1	1,904
Exercise of options and share-based compensation expense (in shares)		4,000
Issuance of shares under employee stock purchase plan	867	$ 5	862
Issuance of shares under employee stock purchase plan (in shares)		33,000
Net income	5,209				5,209
Other comprehensive loss	(11,557)			(11,557)
Ending Balance at Aug. 31, 2022	883,798	$ 17,254	312,750	(39,326)	593,120
Ending Balance (in shares) at Aug. 31, 2022		107,838,000
Beginning Balance at May. 31, 2022	$ 887,374	$ 17,248	309,984	(27,769)	587,911
Beginning Balance (in shares) at May. 31, 2022	107,801,094	107,801,000
Net income	$ (36,632)
Ending Balance at Nov. 30, 2022	$ 3,106,263	$ 34,584	2,560,898	(40,498)	551,279
Ending Balance (in shares) at Nov. 30, 2022	216,154,283	216,154,000
Beginning Balance at Aug. 31, 2022	$ 883,798	$ 17,254	312,750	(39,326)	593,120
Beginning Balance (in shares) at Aug. 31, 2022		107,838,000
Exercise of options and share-based compensation expense	2,637	$ 7	2,630
Exercise of options and share-based compensation expense (in shares)		46,000
Issuance of shares for 3M transaction (Value)	2,262,841	$ 17,323	2,245,518
Issuance of shares for 3M transaction (shares)		108,270
Net income	(41,841)				(41,841)
Other comprehensive loss	(1,172)			(1,172)
Ending Balance at Nov. 30, 2022	$ 3,106,263	$ 34,584	$ 2,560,898	$ (40,498)	$ 551,279
Ending Balance (in shares) at Nov. 30, 2022	216,154,283	216,154,000