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Other Assets (Tables) | 12 Months Ended
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Aug. 31, 2020
Other Assets [Abstract] |
Schedule of Other Assets | Other assets as of August 31, 2020 and 2019, are as follows:
| 2020 |  | 2019
| (Dollars in thousands)
Goodwill | $ | 172,404 |  |  | $ | 172,404 |
Customer lists, trademarks and other intangible assets | 65,025 |  |  | 71,206 |
Notes receivable | 109,145 |  |  | 189,045 |
Long-term derivative assets | 21,157 |  |  | 36,408 |
Prepaid pension and other benefits | 106,209 |  |  | 73,100 |
Capitalized major maintenance | 228,511 |  |  | 286,890 |
Cash value life insurance | 130,673 |  |  | 122,792 |
Operating lease right of use assets | 257,834 |  |  | — |
Other | 48,471 |  |  | 60,350 |
Total other assets | $ | 1,139,429 |  |  | $ | 1,012,195 |
Changes in the Net Carrying Amount of Goodwill | Changes in the net carrying amount of goodwill for the year ended August 31, 2019, by segment, are as follows:
| Energy |  | Ag |  | Corporate and Other |  | Total
| (Dollars in thousands)
Balances, August 31, 2018 | $ | 552 |  |  | $ | 127,338 |  |  | $ | 10,574 |  |  | $ | 138,464 |
Goodwill acquired during the period | — |  |  | 61,358 |  |  | — |  |  | 61,358 |
Impairment | — |  |  | (27,418) |  |  | — |  |  | (27,418) |
Balances, August 31, 2019 | 552 |  |  | 161,278 |  |  | 10,574 |  |  | 172,404 |
Schedule of Intangible Assets included in Other Assets | Information regarding intangible assets is as follows:
| August 31, 2020 |  | August 31, 2019
| Carrying Amount |  | Accumulated Amortization |  | Net |  | Carrying Amount |  | Accumulated Amortization |  | Net
| (Dollars in thousands)
Customer lists | $ | 84,895 |  |  | $ | (23,770) |  |  | $ | 61,125 |  |  | $ | 84,815 |  |  | $ | (17,609) |  |  | $ | 67,206 |
Trademarks and other intangible assets | 10,735 |  |  | (6,835) |  |  | 3,900 |  |  | 9,736 |  |  | (5,736) |  |  | 4,000 |
Total intangible assets | $ | 95,630 |  |  | $ | (30,605) |  |  | $ | 65,025 |  |  | $ | 94,551 |  |  | $ | (23,345) |  |  | $ | 71,206 |
Estimated Amortization Expense Related to Intangible Assets Subject to Amortization | The estimated annual amortization expense related to intangible assets subject to amortization for the next five years is as follows:
| (Dollars in thousands)
2021 | $ | 8,215 |
2022 | 7,973 |
2023 | 7,870 |
2024 | 7,660 |
2025 | 7,345 |
Thereafter | 25,866 |
Total | $ | 64,929 |
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, 2020, 2019 and 2018, is summarized below:
| Balance at Beginning of Year |  | Cost Deferred |  | Amortization |  |  |  | Balance at End of Year
| (Dollars in thousands)
2020 | $ | 286,890 |  |  | $ | 14,496 |  |  | $ | (72,875) |  |  |  |  | $ | 228,511 |
2019 | 130,780 |  |  | 224,406 |  |  | (68,296) |  |  |  |  | 286,890 |
2018 | 105,006 |  |  | 87,460 |  |  | (61,686) |  |  |  |  | 130,780 |

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- Definition Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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