Significant Accounting Policies - Narrative (Details) $ in Millions		3 Months Ended	12 Months Ended
	Feb. 15, 2026 USD ($)	Feb. 28, 2026 segment	May 31, 2026 USD ($) segment	May 31, 2025 USD ($)	May 31, 2024 USD ($)
Accounting Policies [Abstract]
Number of reportable segments \| segment		3	2
Impairment expense on long-lived assets	$ 59.7		$ 0.0	$ 0.0	$ 0.5
Current expected credit losses			0.0	9.5	$ 0.0
Restricted cash			$ 10.5	$ 38.3
Letters of credit, term			2 years
Impairment, long-lived asset held for use, statement of income or comprehensive income extensible enumeration not disclosed			59.7 million

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.