Acquisitions - Schedule of Consideration Transferred and the Preliminary Fair Value Assigned to Assets Acquired And Liabilities Assumed (Detail) - USD ($) $ in Thousands		Jun. 02, 2022	Dec. 01, 2021	Jun. 08, 2021	Jan. 29, 2021	May 31, 2023	May 31, 2022	May 31, 2021
Business Acquisition [Line Items]
Goodwill						$ 414,820	$ 401,469	$ 351,056
Level 5 Tools, LLC
Business Acquisition [Line Items]
Cash and cash equivalents		$ 1,515
Accounts receivable		2,860
Inventories		9,161
Prepaid expenses		64
Property, plant, and equipment		273
Intangible assets		33,580
Operating lease assets		377
Total identifiable assets		47,830
Accounts payable		(3,175)
Accrued expenses		(753)
Current operating lease liabilities		(111)
Noncurrent operating lease liabilities		(266)
Net identifiable assets		43,525
Goodwill		15,947
Purchase price		59,472
Less: Fair value of earnout		(2,000)
Plus: Net working capital deficit		131
Cash purchase price		57,603
Level 5 Tools, LLC | Preliminary Valuation
Business Acquisition [Line Items]
Cash and cash equivalents		1,515
Accounts receivable		2,860
Inventories		9,161
Prepaid expenses		64
Property, plant, and equipment		273
Intangible assets		33,580
Operating lease assets		377
Total identifiable assets		47,830
Accounts payable		(3,175)
Accrued expenses		(904)
Current operating lease liabilities		(111)
Noncurrent operating lease liabilities		(266)
Net identifiable assets		43,374
Goodwill		15,947
Purchase price		59,321
Less: Fair value of earnout		(2,000)
Plus: Net working capital deficit		282
Cash purchase price		57,603
Level 5 Tools, LLC | Measurement Period Adjustments
Business Acquisition [Line Items]
Accrued expenses		(151)
Net identifiable assets		151
Purchase price		151
Plus: Net working capital deficit		$ (151)
Shiloh Industries' U.S. BlankLight
Business Acquisition [Line Items]
Accounts receivable				$ 43,695
Inventories				15,970
Property, plant, and equipment				29,357
Intangible assets				36,090
Operating lease assets				59,905
Total identifiable assets				185,017
Accounts payable				(44,894)
Current operating lease liabilities				(1,555)
Noncurrent operating lease liabilities				(58,350)
Net identifiable assets				80,218
Goodwill				24,288
Purchase price				104,506
Shiloh Industries' U.S. BlankLight | Preliminary Valuation
Business Acquisition [Line Items]
Accounts receivable				44,191
Inventories				13,971
Property, plant, and equipment				30,461
Intangible assets				34,280
Operating lease assets				59,905
Total identifiable assets				182,808
Accounts payable				(44,822)
Current operating lease liabilities				(1,555)
Noncurrent operating lease liabilities				(58,350)
Net identifiable assets				78,081
Goodwill				26,669
Purchase price				104,750
Shiloh Industries' U.S. BlankLight | Measurement Period Adjustments
Business Acquisition [Line Items]
Accounts receivable				(496)
Inventories				1,999
Property, plant, and equipment				(1,104)
Intangible assets				1,810
Total identifiable assets				2,209
Accounts payable				(72)
Net identifiable assets				2,137
Goodwill				(2,381)
Purchase price				$ (244)
Tempel Steel Company
Business Acquisition [Line Items]
Cash and cash equivalents			$ 17,098
Accounts receivable			89,473
Inventories			59,927
Other current assets			10,648
Property, plant, and equipment			147,441
Intangible assets			41,000
Operating lease assets			4,098
Total identifiable assets			369,685
Accounts payable			(49,777)
Notes payable			(6,270)
Accrued liabilities			(17,437)
Current operating lease liabilities			(1,614)
Noncurrent operating lease liabilities			2,484
Other long-term liabilities	[1]		(37,823)
Net identifiable assets			254,280
Goodwill			35,026
Purchase price			289,306
Tempel Steel Company | Preliminary Valuation
Business Acquisition [Line Items]
Cash and cash equivalents			17,098
Accounts receivable			88,672
Inventories			59,927
Other current assets			10,666
Property, plant, and equipment			147,441
Intangible assets			41,000
Operating lease assets			4,098
Total identifiable assets			368,902
Accounts payable			(49,777)
Notes payable			(6,270)
Accrued liabilities			(17,501)
Current operating lease liabilities			(1,614)
Noncurrent operating lease liabilities			(2,484)
Other long-term liabilities	[1]		(40,110)
Net identifiable assets			251,146
Goodwill			38,462
Purchase price			289,608
Tempel Steel Company | Measurement Period Adjustments
Business Acquisition [Line Items]
Accounts receivable			801
Other current assets			(18)
Total identifiable assets			(783)
Accrued liabilities			64
Other long-term liabilities	[1]		2,287
Net identifiable assets			3,134
Goodwill			(3,436)
Purchase price			$ (302)
General Tools & Instruments Company LLC
Business Acquisition [Line Items]
Cash and cash equivalents					$ 1,633
Accounts receivable					15,442
Inventories					19,779
Prepaid expenses					751
Property, plant, and equipment					956
Intangible assets					68,400
Operating lease assets					5,502
Other assets					30
Total identifiable assets					112,493
Accounts payable					(2,554)
Accrued liabilities					(5,873)
Current operating lease liabilities					(657)
Other current liabilities					(165)
Noncurrent operating lease liabilities					(4,845)
Deferred tax liabilities					(11,782)
Other long-term liabilities					(230)
Net identifiable assets					86,387
Goodwill					34,001
Purchase price					120,388
Cash purchase price					120,388
General Tools & Instruments Company LLC | Preliminary Valuation
Business Acquisition [Line Items]
Cash and cash equivalents					1,633
Accounts receivable					16,440
Inventories					19,795
Prepaid expenses					924
Other current assets					97
Property, plant, and equipment					956
Intangible assets					68,400
Operating lease assets					5,502
Other assets					30
Total identifiable assets					113,777
Accounts payable					(2,594)
Accrued liabilities					(6,006)
Current operating lease liabilities					(657)
Other current liabilities					(923)
Noncurrent operating lease liabilities					(4,845)
Deferred tax liabilities					(11,635)
Other long-term liabilities					(239)
Net identifiable assets					86,878
Goodwill					33,714
Purchase price					120,592
General Tools & Instruments Company LLC | Measurement Period Adjustments
Business Acquisition [Line Items]
Accounts receivable					(998)
Inventories					(16)
Prepaid expenses					(173)
Other current assets					(97)
Total identifiable assets					(1,284)
Accounts payable					40
Accrued liabilities					133
Other current liabilities					758
Deferred tax liabilities					(147)
Other long-term liabilities					9
Net identifiable assets					(491)
Goodwill					287
Purchase price					$ (204)

[1] Includes $40,160 of net pension and other postretirement benefit obligations assumed as part of the Tempel acquisition. The excess of projected benefit obligations over the fair value of the plans’ assets was recognized as a liability in accordance with ASC 715 using key inputs including, but not limited to, discount rates and expected rates of return on the plans’ assets. See “Note M - Employee Pension Plans” for additional information.