Commitments and Contingencies	12 Months Ended
Sep. 30, 2020
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	17. COMMITMENTS AND CONTINGENCIES: We are party to various legal actions arising in the ordinary course of business. We believe that these matters should not have a material adverse effect on our consolidated financial condition, results of operations or cash flows. During the fiscal years ended September 30, 2018, 2019, and 2020, we incurred costs associated with store closings and lease terminations of approximately $0, $3.1 million, and $1.7 million, respectively. The store closing costs have been included in selling, general, and administrative expenses in the consolidated statements of operations during the fiscal years ended September 30, 2018, 2019, and 2020. In connection with certain of our workers’ compensation insurance policies, we maintain standby letters of credit for our insurance carriers in the amount of $1.1 million relating primarily to retained risk on our workers compensation claims. We are subject to federal and state environmental regulations, including rules relating to air and water pollution and the storage and disposal of gasoline, oil, other chemicals and waste. We believe that we are in compliance with such regulations.

Commitments and Contingencies

12 Months Ended

Sep. 30, 2020

Commitments And Contingencies Disclosure [Abstract]

17. COMMITMENTS AND CONTINGENCIES:

We are party to various legal actions arising in the ordinary course of business. We believe that these matters should not have a material adverse effect on our consolidated financial condition, results of operations or cash flows.

During the fiscal years ended September 30, 2018, 2019, and 2020, we incurred costs associated with store closings and lease terminations of approximately $0, $3.1 million, and $1.7 million, respectively. The store closing costs have been included in selling, general, and administrative expenses in the consolidated statements of operations during the fiscal years ended September 30, 2018, 2019, and 2020.

In connection with certain of our workers’ compensation insurance policies, we maintain standby letters of credit for our insurance carriers in the amount of $1.1 million relating primarily to retained risk on our workers compensation claims.

We are subject to federal and state environmental regulations, including rules relating to air and water pollution and the storage and disposal of gasoline, oil, other chemicals and waste. We believe that we are in compliance with such regulations.