Quarterly report pursuant to Section 13 or 15(d)

Provision for Income Taxes

Provision for Income Taxes
6 Months Ended
Mar. 31, 2022
Income Tax Disclosure [Abstract]  
Provision for Income Taxes Provision for Income Taxes
The Company files a consolidated United States federal income tax return and income tax returns in various states. Management evaluated the Company’s tax positions based on appropriate provisions of applicable tax laws and regulations and believes that they are supportable based on their specific technical merits and the facts and circumstances of the respective transactions.                                                                
The Company’s effective income tax rate for the three months ended March 31, 2022 and 2021 was 23.5% and 23.5%, respectively. The Company’s effective tax rate for the six months ended March 31, 2022 and 2021 was 21.8% and 28.4%, respectively. The changes in the Company's effective rates are due to differences in state tax rates at its operating subsidiaries.