CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Aug. 31, 2013	Aug. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 158,266	$ 12,646
Adjustments to reconcile net income to net cash provided by operating activities
Amortization of deferred income	(2,830)	(3,925)
Amortization of debt issuance costs and deferred charges	1,865	1,978
Amortization of discount on long-term debt	1,333
Amortization of issuance costs for revolving bank lines of credit	611
Depreciation	1,457	1,310
Provision for loan losses	1,278	9,122
Recovery of guarantee liability	(31)	(9)
Results of operations of foreclosed assets	4,049	4,765
Derivative forward value	(123,069)	10,729
Changes in operating assets and liabilities:
Accrued interest and other receivables	2,568	14,047
Accrued interest payable	66,018	65,987
Other	25,537	17,162
Net cash provided by operating activities	137,052	133,812
CASH FLOWS FROM INVESTING ACTIVITIES
Advances made on loans	(2,183,485)	(2,082,939)
Principal collected on loans	2,074,710	1,526,701
Net investment in fixed assets	(1,173)	(1,381)
Proceeds from foreclosed assets	6,442	18,986
Investments in foreclosed assets	(10,019)	(35,284)
Change in restricted cash	(478)	(477)
Net cash used in investing activities	(114,003)	(574,394)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from issuances of short-term debt, net	316,571	102,074
Proceeds from issuances of short term debt with original maturity greater than 90 days	273,568	128,515
Repayments of short term debt with original maturity greater than 90 days	(189,956)	(100,288)
Proceeds from issuance of long-term debt	815,066	973,425
Payments for retirement of long-term debt	(1,048,931)	(320,772)
Proceeds from issuance of members' subordinated certificates	518	46,304
Payments for retirement of members' subordinated certificates	(3,892)	(4,021)
Net cash provided by financing activities	162,425	824,534
NET INCREASE IN CASH AND CASH EQUIVALENTS	185,474	383,952
BEGINNING CASH AND CASH EQUIVALENTS	177,062	191,167
ENDING CASH AND CASH EQUIVALENTS	362,536	575,119
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest	97,758	108,631
Cash paid for income taxes	3	81
Non-cash financing and investing activities:
Increase to patronage capital retirement payable	39,630	35,345
Net decrease in debt service reserve funds/debt service reserve certificates	(450)
Revolving bank lines of credit
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance costs for debt	(369)	(703)
Subordinated deferrable debt
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance costs for debt	$ (150)