Leases - Schedule of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Property, Plant and Equipment [Line Items]
Operating lease expense – fixed payments	$ 1,136	$ 828	$ 2,267	$ 1,657
Variable lease expense	233	44	567	108
Short-term equipment and other lease expense (includes $58 and $102 recorded in advertising and marketing for the three months ended March 31, 2022 and 2021, respectively, and $130 and $159 for the six months ended March 31, 2022 and 2021, respectively; and $107 and $116 recorded in repairs and maintenance for the three months ended March 31, 2022 and 2021, respectively, and $190 and $204 for the six months ended March 31, 2022 and 2021, respectively; see Note 6)	368	318	698	547
Sublease income	(1)	(1)	(3)	(3)
Total lease expense, net	1,736	1,189	3,529	2,309
Operating cash outflows from operating leases	$ 1,690	$ 1,162	$ 3,439	$ 2,253
Weighted average remaining lease term – operating leases	12 years	12 years	12 years	12 years
Weighted average discount rate – operating leases	5.60%	6.10%	5.60%	6.10%
Advertising and marketing	$ 2,248	$ 1,384	$ 4,631	$ 2,573
Repairs and maintenance	903	677	1,628	1,250
Equipment
Property, Plant and Equipment [Line Items]
Advertising and marketing	58	102	130	159
Repairs and maintenance	$ 107	$ 116	$ 190	$ 204