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Income Taxes (Tables)
6 Months Ended
Mar. 31, 2024
Income Tax Disclosure [Abstract]  
Schedule of Calculation of the Effective Income Tax Rate
The calculation of the effective tax rate is as follows (in thousands):
 Three months ended March 31,Six months ended March 31,
 2024202320242023
Income before income taxes$43,917 $10,973 $73,795 $12,587 
Income tax provision10,429 2,500 16,222 2,951 
Net income$33,488 $8,473 $57,573 $9,636 
Effective tax rate24 %23 %22 %23 %