Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Worthington Taylor, LLC	Worthington Samuel Coil Processing Llc	Common Shares	Additional Paid-in Capital	Additional Paid-in Capital Worthington Taylor, LLC	Accumulated Other Comprehensive Income (Loss), Net of Tax	Retained Earnings	Total	Total Worthington Taylor, LLC	Noncontrolling Interests	Noncontrolling Interests Worthington Taylor, LLC	Noncontrolling Interests Worthington Samuel Coil Processing Llc
Balance at May. 31, 2019	$ 948,394				$ 283,177		$ (43,464)	$ 591,533	$ 831,246		$ 117,148
Balance (in shares) at May. 31, 2019				55,467,525
Net earnings	84,444							78,796	78,796		5,648
Other comprehensive income (loss)	8,247						8,247		8,247
Common shares issued, net of withholding tax	(6,513)				(6,513)				(6,513)
Common shares issued, net of withholding tax (in shares)				448,960
Theoretical common shares in NQ plans	547				547				547
Stock-based compensation	13,191				13,191				13,191
Consolidation of Worthington Samuel Coil Processing LLC			$ 24,269										$ 24,269
Repurchases and retirement of common shares	$ (50,972)				(6,626)			(44,346)	(50,972)
Repurchases and retirement of common shares (in shares)	1,300,000			1,300,000
Dividends to noncontrolling interests	$ (1,453)										(1,453)
Cash dividends declared ($0.96 per share in 2020, $1.03 per share in 2021 and $1.03 per share in 2022)	(53,721)							(53,721)	(53,721)
Balance at May. 31, 2020	966,433				283,776		(35,217)	572,262	820,821		145,612
Balance (in shares) at May. 31, 2020				54,616,485
Net earnings	741,450							723,795	723,795		17,655
Other comprehensive income (loss)	80,604						80,604		80,604
Common shares issued, net of withholding tax	6,581				6,581				6,581
Common shares issued, net of withholding tax (in shares)				732,326
Theoretical common shares in NQ plans	556				556				556
Stock-based compensation	13,005				13,005				13,005
Partner contribution to Worthington Samuel Coil Processing, LLC			$ 925										$ 925
Repurchases and retirement of common shares	$ (192,054)				(21,128)			(170,926)	(192,054)
Repurchases and retirement of common shares (in shares)	4,018,464			4,018,464
Dividends to noncontrolling interests	$ (10,690)										(10,690)
Cash dividends declared ($0.96 per share in 2020, $1.03 per share in 2021 and $1.03 per share in 2022)	(55,115)							(55,115)	(55,115)
Balance at May. 31, 2021	1,551,695				282,790		45,387	1,070,016	1,398,193		153,502
Balance (in shares) at May. 31, 2021				51,330,347
Net earnings	399,264							379,386	379,386		19,878
Other comprehensive income (loss)	(68,237)						(68,237)		(68,237)
Common shares issued, net of withholding tax	(6,280)				(6,280)				(6,280)
Common shares issued, net of withholding tax (in shares)				284,765
Theoretical common shares in NQ plans	592				592				592
Stock-based compensation	15,672				15,672				15,672
Repurchases and retirement of common shares	$ (180,248)				(17,962)			(162,286)	(180,248)
Repurchases and retirement of common shares (in shares)	3,235,000			3,235,000
Purchase of noncontrolling interest in Worthington Taylor, LLC		$ 6,383				$ 1,373				$ 1,373		$ 5,010
Dividends to noncontrolling interests	$ (35,160)										35,160
Cash dividends declared ($0.96 per share in 2020, $1.03 per share in 2021 and $1.03 per share in 2022)	(56,953)							(56,953)	(56,953)
Balance at May. 31, 2022	$ 1,613,962				$ 273,439		$ (22,850)	$ 1,230,163	$ 1,480,752		$ 133,210
Balance (in shares) at May. 31, 2022				48,380,112