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Income Taxes Income Taxes (Tables)
3 Months Ended
Nov. 30, 2025
Income Tax Disclosure [Abstract]  
Income Tax Effective Tax Rate [Table Text Block] Comparative earnings before income taxes, income tax expense and effective income tax rates are as follows (dollars in thousands):
 Three Months Ended November 30,
 20252024
Earnings before income tax expense$25,557 $27,875 
Income tax expense6,426 6,152 
Effective income tax rate25.1 %22.1 %