Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

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Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2021
Feb. 29, 2020
Income Tax Disclosure Additional Details [Table] [Line Items]        
Earnings from continuing operations before income tax expense $ 3,585 $ 4,724 $ 10,664 $ 12,046
Income tax (benefit) expense $ 1 $ 806 $ 2,258 $ 1,756
Effective Income Tax Rate Reconciliation, Percent 0.00% 17.10% 21.20% 14.60%
Earnings from Foreign Jurisdictions, Percent     70.00% 70.00%
Federal Statutory Income Tax Rate, Percent     21.00%