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Other Assets (Tables)
 12 Months Ended
Aug. 31, 2023
Other Assets [Abstract]  
Schedule of Other Assets Other assets as of August 31, 2023 and 2022, are as follows:
20232022
 (Dollars in thousands)
Goodwill$179,976 $179,976 
Customer lists, trademarks and other intangible assets46,980 53,165 
Notes receivable (Note 3)76,919 46,012 
Long-term derivative assets (Note 15)1,119 8,546 
Prepaid pension and other benefits (Note 13)78,819 74,810 
Capitalized major maintenance289,377 147,521 
Cash value life insurance134,126 128,876 
Operating lease right of use assets (Note 19)254,844 242,859 
Other68,364 92,230 
Total other assets$1,130,524 $973,995 
Changes in the Net Carrying Amount of Goodwill
EnergyAgCorporate
and Other		Total
(Dollars in thousands)
Balances, August 31, 2021$552 $160,475 $10,574 $171,601 
Goodwill acquired during the period8,906 — — 8,906 
Goodwill disposed of during the period— (531)— (531)
Balances, August 31, 2022$9,458 $159,944 $10,574 $179,976 
Schedule of Intangible Assets included in Other Assets Information regarding intangible assets is as follows:
August 31, 2023August 31, 2022
Carrying AmountAccumulated AmortizationNetCarrying AmountAccumulated AmortizationNet
(Dollars in thousands)
Customer lists$85,341 $(41,374)$43,967 $84,565 $(35,280)$49,285 
Trademarks and other intangible assets11,332 (8,319)3,013 11,902 (8,022)3,880 
Total intangible assets$96,673 $(49,693)$46,980 $96,467 $(43,302)$53,165 
Estimated Amortization Expense Related to Intangible Assets Subject to Amortization The estimated annual amortization expense related to intangible assets subject to amortization for future years is as follows:
(Dollars in thousands)
2024$6,631 
20256,415 
20266,233 
20276,178 
20286,178 
Thereafter15,345 
Total $46,980 
Activity Related to Capitalized Major Maintenance Costs at Refineries Activity related to capitalized major maintenance costs at our refineries for the years ended August 31, 2023, 2022 and 2021, is summarized below:
Balance at
Beginning
of Year		Cost
Deferred		AmortizationBalance at
End of Year
 (Dollars in thousands)
2023$147,521 $216,762 $(74,906)$289,377 
2022196,641 25,401 (74,521)147,521 
2021228,511 41,899 (73,769)196,641