Acquisitions (Details) - USD ($) $ in Millions							3 Months Ended				9 Months Ended
	Dec. 17, 2025	Nov. 03, 2025	Sep. 25, 2025	Aug. 11, 2025	Mar. 01, 2024	Mar. 20, 2023	Feb. 28, 2026	May 31, 2025	Feb. 28, 2025	Nov. 30, 2023	Feb. 28, 2026	Feb. 28, 2025
Acquisitions
Bargain purchase gain							$ 35.7				$ 35.7
ART
Acquisitions
Purchase price	$ 35.0
HAECO Americas
Acquisitions
Purchase price		$ 78.0
Acquisition related costs expensed amount		$ 3.2
Bargain purchase gain							35.7
Expenses incurred for integration activities							5.9				6.7
ADI
Acquisitions
Purchase price			$ 137.7
Acquisition related costs expensed amount			4.1
Reduction in purchase price, post-closing adjustment							0.6
Escrow deposit			4.5
Escrow deposit disbursement							1.0
ADI | Trademarks
Acquisitions
Indefinite-Lived Intangible Assets Acquired			16.1
ADI | Customer relationships
Acquisitions
Amortizable intangible assets acquired			$ 43.3
Weighted average useful life			12 years 6 months
ADI | Backlog
Acquisitions
Amortizable intangible assets acquired			$ 16.4
Weighted average useful life			3 years
Aerostrat
Acquisitions
Purchase price				$ 15.0
Escrow deposit				3.1
Contingent consideration				5.0
Business combination, acquisition related costs				0.5
Aerostrat | Successful lunch of certain product offering
Acquisitions
Contingent consideration				1.0
Aerostrat | Achievement of adjusted revenue targets
Acquisitions
Contingent consideration				4.0
Aerostrat | Trade Names
Acquisitions
Amortizable intangible assets acquired				0.7
Aerostrat | Customer relationships
Acquisitions
Amortizable intangible assets acquired				$ 4.7
Weighted average useful life				10 years
Aerostrat | Developed technology
Acquisitions
Amortizable intangible assets acquired				$ 4.9
Weighted average useful life				20 years
Product Support
Acquisitions
Purchase price					$ 725.0
Business combination, acquisition related costs							0.5		$ 1.8		2.4	$ 5.6
Reduction in purchase price					2.9
Product Support | Customer relationships
Acquisitions
Amortizable intangible assets acquired					$ 96.1
Weighted average useful life					12 years 6 months
Product Support | Developed technology
Acquisitions
Amortizable intangible assets acquired					$ 83.3
Weighted average useful life					20 years
Trax
Acquisitions
Purchase price						$ 120.0
Escrow deposit						12.0	5.4				5.4
Escrow deposit disbursement								$ 4.4		$ 3.0
Contingent consideration						$ 20.0
Business combination, acquisition related costs											8.1
Business combination, consideration transferred, liabilities incurred										$ 1.8
Compensation expense							$ 0.0		$ 1.7		$ 0.0	$ 3.8