Acquisitions - Schedule of Consideration Transferred and the Preliminary Fair Value Assigned to Assets Acquired And Liabilities Assumed (Detail) - USD ($) $ in Thousands		Jan. 29, 2021	May 31, 2021	May 31, 2020	May 31, 2019
Business Acquisition [Line Items]
Goodwill			$ 351,056	$ 321,434	$ 334,607
General Tools & Instruments Company LLC [Member]
Business Acquisition [Line Items]
Cash		$ 1,633
Accounts receivable		15,442
Inventories		19,779
Prepaid expenses		751
Intangible assets		68,400
Property, plant, and equipment		956
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		(11,349)
Other long-term liabilities		(230)
Net identifiable assets		86,820
Goodwill		33,568
Purchase price		120,388
General Tools & Instruments Company LLC [Member] | Preliminary Valuation
Business Acquisition [Line Items]
Cash		1,633
Accounts receivable		16,440
Inventories		19,795
Prepaid expenses		924
Other current assets		97
Intangible assets		68,400
Property, plant, and equipment		956
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 [Member] | Measurement Period Adjustments
Business Acquisition [Line Items]
Accounts receivable	[1]	(998)
Inventories	[1]	(16)
Prepaid expenses	[1]	(173)
Other current assets	[1]	(97)
Total identifiable assets	[1]	(1,284)
Accounts payable	[1]	40
Accrued liabilities	[1]	133
Other current liabilities	[1]	758
Deferred tax liabilities	[1]	286
Other long-term liabilities	[1]	9
Net identifiable assets	[1]	(58)
Goodwill	[1]	(146)
Purchase price	[1]	$ (204)

[1] Includes adjustments for final working capital and closing tax balances