Income Taxes - Examination (Details)	9 Months Ended
Jun. 30, 2022
Earliest Tax Year
Income Tax Contingency [Line Items]
Year subject to examination	2013

Tax year that remains open to examination under enacted tax laws, in YYYY format.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319

Name:	us-gaap_OpenTaxYear
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:gYearListItemType
Balance Type:	na
Period Type:	duration