Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		8 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	May 31, 2024
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Early retirement of patronage capital, discounted amount	$ 228,284	$ 161,874
Subsequent Event | Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Redemption of subordinated debt			$ 12,000
Subsequent Event | Forecast | Retained earnings, appropriated patronage capital allocated and retired
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Early retirement of patronage capital, discounted amount			$ 52,000