v3.26.1
Equities - Schedule of Changes in Equities (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Feb. 28, 2026
Feb. 28, 2025
Feb. 28, 2026
Feb. 28, 2025
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning balance $ 11,206,822 $ 10,818,388 $ 11,080,174 $ 10,761,924
Reversal of prior fiscal year patronage and redemption estimates 33,183 236,000 46,942 245,831
Distribution of patronage refunds (19,076) (229,470) (19,076) (229,470)
Redemptions of equities (14,107) (6,496) (27,866) (16,327)
Preferred stock dividends (42,167) (42,167) (126,501) (126,501)
Other, net 78 (6,635) (15,919) (5,148)
Net (loss) income (147,190) (76,003) 113,267 169,590
Other comprehensive income (loss), net of tax 15,719 2,450 31,734 (5,810)
Estimated cash patronage refunds 7,881 36,859 (4,492) (12,152)
Estimated equity redemptions 19,152 (18,798) (17,968) (67,809)
Ending balance 11,060,295 10,714,128 11,060,295 10,714,128
Capital Equity Certificates        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning balance 3,717,911 3,707,020 3,743,060 3,753,343
Reversal of prior fiscal year patronage and redemption estimates (40,926) (70,765) (27,167) (60,934)
Distribution of patronage refunds 54,230 75,884 54,230 75,884
Redemptions of equities (9,977) (5,007) (19,957) (12,145)
Other, net (105) (3) 8,087 (8)
Estimated equity redemptions 19,152 (18,798) (17,968) (67,809)
Ending balance 3,740,285 3,688,331 3,740,285 3,688,331
Nonpatronage Equity Certificates        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning balance 26,316 27,105 26,888 27,261
Redemptions of equities (48) (54) (122) (210)
Other, net   (16) (498) (16)
Ending balance 26,268 27,035 26,268 27,035
Nonqualified Equity Certificates        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning balance 2,322,450 2,199,228 2,333,657 2,201,765
Reversal of prior fiscal year patronage and redemption estimates (144,101) (282,431) (144,101) (282,431)
Distribution of patronage refunds 144,097 283,766 144,097 283,766
Redemptions of equities (4,082) (1,435) (7,787) (3,972)
Other, net (6) (15) (7,508) (15)
Ending balance 2,318,358 2,199,113 2,318,358 2,199,113
Preferred Stock        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning balance 2,264,038 2,264,038 2,264,038 2,264,038
Ending balance 2,264,038 2,264,038 2,264,038 2,264,038
Accumulated Other Comprehensive Loss        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning balance (290,357) (304,802) (306,372) (296,542)
Other comprehensive income (loss), net of tax 15,719 2,450 31,734 (5,810)
Ending balance (274,638) (302,352) (274,638) (302,352)
Capital Reserves        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning balance 3,162,987 2,919,830 3,015,424 2,805,526
Reversal of prior fiscal year patronage and redemption estimates 218,210 589,196 218,210 589,196
Distribution of patronage refunds (217,403) (589,120) (217,403) (589,120)
Preferred stock dividends (42,167) (42,167) (126,501) (126,501)
Other, net 179 (6,086) (16,034) (3,227)
Net (loss) income (147,052) (75,754) 113,431 169,036
Estimated cash patronage refunds 7,881 36,859 (4,492) (12,152)
Ending balance 2,982,635 2,832,758 2,982,635 2,832,758
Noncontrolling Interests        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning balance 3,477 5,969 3,479 6,533
Other, net 10 (515) 34 (1,882)
Net (loss) income (138) (249) (164) 554
Ending balance $ 3,349 $ 5,205 $ 3,349 $ 5,205