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Other Expenses - Other Expenses Breakout (Details) - USD ($) $ in Millions | 3 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Other Expenses [Abstract] |  |
Non-income taxes | $ 2.5 | $ 4.7
Insurance | 2.9 | 2.7
Employee related expenses | 1.9 | 3.6
Other direct business expenses | 4.4 | 4.0
Membership fees | 0.9 | 0.8
Director and public company expenses | 0.5 | 0.5
Office expenses | 0.6 | 0.4
Other expenses | 3.2 | 2.7
Total other expenses | $ 16.9 | $ 19.4

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- Definition Director And Public Company Expenses + References No definition available. + Details
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- Definition Employee Related Expenses + References No definition available. + Details
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- Definition Membership Expense + References No definition available. + Details
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- Definition Office Expenses + References No definition available. + Details
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- Definition Other Direct Business Expenses + References No definition available. + Details
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- Definition The expense in the period incurred with respect to protection provided by insurance entities against risks other than risks associated with production (which are allocated to cost of sales). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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- Definition Amount of expense classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4,6) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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- Definition Amount of noninterest expense classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
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- Definition All taxes not related to income of the entity or excise or sales taxes levied on the revenue of the entity that are not reported elsewhere. These taxes could include production, real estate, personal property, and pump tax. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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