Significant Accounting Policies - Concentration of Credit Risk (Details)	9 Months Ended	12 Months Ended
Jun. 30, 2022	Sep. 30, 2021
Concentration of Credit Risk
Concentration risk, number of customers	no	no
Customer One \| Accounts and installments receivable \| Customers concentration risk
Concentration of Credit Risk
Percentage of total receivables	10.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration