Fair Value Measurement - Schedule of the Entity's Assets and Liabilities that are Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Feb. 28, 2026	May 31, 2025
Assets:
Equity securities, at fair value	$ 10,228	$ 11,252
Debt securities trading, at fair value	42,620	113,663
Deferred compensation investments	8,485	8,019
Derivative assets	418,984	555,855
Liabilities:
Derivative liabilities	48,156	51,368
Deferred compensation liability	8,485	8,019
Level 1
Assets:
Equity securities, at fair value	10,228	11,252
Debt securities trading, at fair value	0	0
Deferred compensation investments	8,485	8,019
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Deferred compensation liability	8,485	8,019
Level 2
Assets:
Equity securities, at fair value	0	0
Debt securities trading, at fair value	42,620	113,663
Deferred compensation investments	0	0
Derivative assets	418,984	555,855
Liabilities:
Derivative liabilities	48,156	51,368
Deferred compensation liability	0	0
Recurring Basis
Assets:
Equity securities, at fair value	10,228	11,252
Debt securities trading, at fair value	42,620	113,663
Deferred compensation investments	8,485	8,019
Derivative assets	418,984	555,855
Liabilities:
Derivative liabilities	48,156	51,368
Deferred compensation liability	8,485	8,019
Recurring Basis | Level 1
Assets:
Equity securities, at fair value	10,228	11,252
Debt securities trading, at fair value	0	0
Deferred compensation investments	8,485	8,019
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Deferred compensation liability	8,485	8,019
Recurring Basis | Level 2
Assets:
Equity securities, at fair value	0	0
Debt securities trading, at fair value	42,620	113,663
Deferred compensation investments	0	0
Derivative assets	418,984	555,855
Liabilities:
Derivative liabilities	48,156	51,368
Deferred compensation liability	$ 0	$ 0