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Fair Value of Financial Instruments - Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands | Aug. 31, 2021 | Aug. 31, 2020
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Carrying (Reported) Amount, Fair Value Disclosure |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Notes payable | [1] | $ 913,815 | $ 832,126
Estimate of Fair Value, Fair Value Disclosure |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Notes payable |  | $ 935,917 | $ 802,324
[1] | Carrying amount disclosed in this table excludes debt discount and debt issuance costs.

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- Definition Fair value portion of notes payable. + 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 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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