Acquisitions - Fair value of assets acquired and liabilities (Details) - USD ($) $ in Millions	Aug. 31, 2025	Aug. 11, 2025	May 31, 2025	Mar. 01, 2024
Acquisitions
Goodwill	$ 543.1		$ 530.8
Aerostrat Corp
Acquisitions
Current assets		$ 0.7
Intangible assets		10.3
Deferred revenue		(0.6)
Deferred tax liabilities		(2.6)
Net assets acquired		7.8
Goodwill		12.3
Purchase price, net of cash acquired		$ 20.1
Product support business
Acquisitions
Accounts receivable				$ 42.3
Contract assets				18.7
Inventory				62.8
Rotable assets				21.9
Property & equipment				44.6
Intangible assets				179.4
Investment in joint venture				17.9
Other assets				4.1
Accounts payable				(21.6)
Other liabilities				(14.9)
Net assets acquired				355.2
Goodwill				364.8
Purchase price, net of cash acquired				$ 720.0