Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Selected Account Information - Narrative (Details) - USD ($)		9 Months Ended
	Oct. 06, 2021	Jun. 30, 2022	Sep. 30, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Receivable percentage	7.00%
Notes receivable, term	8 years
Financing receivable, allowance for credit loss		$ 0	$ 102,000
Minimum
Financing Receivable, Allowance for Credit Loss [Line Items]
Receivable percentage		6.00%
Notes receivable, term		1 year
Maximum
Financing Receivable, Allowance for Credit Loss [Line Items]
Receivable percentage		9.00%
Notes receivable, term		20 years