Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Feb. 28, 2023	Feb. 28, 2022
Cash flows from operating activities:
Net income	$ 514,855	$ 307,362
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of deferred loan fees	(5,720)	(6,233)
Amortization of debt issuance costs and discounts	21,692	20,358
Amortization of guarantee fee	14,144	14,078
Depreciation and amortization	3,815	5,811
Provision (benefit) for credit losses	3,806	(12,146)
Unrealized losses on equity and debt securities	2,638	17,619
Derivative forward value gains	(330,035)	(122,930)
Advances on loans held for sale	(148,142)	(70,186)
Proceeds from sales of loans held for sale	191,942	64,186
Changes in operating assets and liabilities:
Accrued interest receivable	(50,438)	(2,628)
Accrued interest payable	101,740	47,734
Deferred income	1,929	787
Other	(25,648)	(13,890)
Net cash provided by operating activities	296,578	249,922
Cash flows from investing activities:
Advances on loans held for investments, net	(2,384,524)	(1,087,256)
Investments in fixed assets, net	(14,586)	(12,363)
Purchase of trading securities	(118,065)	(122,116)
Proceeds from sales and maturities of trading securities	125,268	114,419
Net cash used in investing activities	(2,391,907)	(1,107,316)
Cash flows from financing activities:
Proceeds from short-term borrowings ≤ 90 days, net	49,287	31,983
Proceeds from short-term borrowings with original maturity > 90 days	2,141,018	1,975,416
Repayments of short-term borrowings with original maturity > 90 days	(2,271,841)	(2,161,438)
Payments for issuance costs for revolving bank lines of credit	(2,108)	(3,563)
Proceeds from issuance of long-term debt, net of discount and issuance costs	4,069,959	3,395,920
Payments for retirement of long-term debt	(1,801,904)	(2,494,922)
Proceeds from issuance of members’ subordinated certificates	6,127	359
Payments for retirement of members’ subordinated certificates	(16,873)	(21,183)
Payments for retirement of patronage capital	(59,189)	(57,761)
Repayments for membership fees, net	(1)	0
Net cash provided by financing activities	2,114,475	664,811
Net increase (decrease) in cash, cash equivalents and restricted cash	19,146	(192,583)
Beginning cash, cash equivalents and restricted cash	161,114	303,361
Ending cash, cash equivalents and restricted cash	180,260	110,778
Supplemental disclosure of cash flow information:
Cash paid for interest	619,052	451,179
Cash paid for income taxes	201	3
Non-cash financing and investing activities:
Equity investment, at cost, obtained in exchange for loan held for investment	$ 7,778	$ 0