Acquisitions - Additional Information Regarding Recent Acquisitions (Details) $ in Thousands			1 Months Ended	3 Months Ended			12 Months Ended
	Jun. 09, 2021 USD ($)	Jun. 08, 2021 USD ($) store payment shares	Jul. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2022 USD ($)
Business Acquisition [Line Items]
Transfer of consideration for acquisition							$ 0	$ 1,545	$ 0
Acquisition earn-out contingency						$ 4,608	0	4,608	$ 0
Measurement period adjustments							(678)
Bajio
Business Acquisition [Line Items]
Percentage acquired		100.00%
Aggregate purchase price		$ 23,600			$ 22,300
Cash payments for acquisition		$ 17,400	$ 300			3,800
Shares of the company’s class a non-voting common stock (in shares) | shares		212,870
Transfer of consideration for acquisition		$ 1,600
Acquisition earn-out contingency		$ 4,600
Number of additional payments | payment		2
Additional payment term		2 years
Maximum percentage of future contingent consideration that can be paid in shares		50.00%
Payments to acquire business, paid at closing		$ 11,600
Measurement period adjustments				$ 700	1,300			1,300
Business acquisition increase decrease in consideration payable					$ 1,300
Business acquisition, consideration payable						$ 2,000		2,000		$ 600
Business acquisition, final consideration payable on fifth anniversary of acquisition							$ 300
Business combination, revenue of acquiree since acquisition date								9,600
Net loss of acquiree since acquisition								100
Repayment of debt	$ 14,900
Acquisition related costs								$ 800
Bajio | Mexico
Business Acquisition [Line Items]
Number of stores acquired | store		128