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Allowance for Credit Losses (Narratives) (Details) $ in Millions | 9 Months Ended |
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Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($)
Receivables [Abstract] |  |
Trade receivable components | 2 |
Allowance for expected credit losses | $ 4.3 |
Available for sale securities, accrued interest receivable |  | $ 29.7
Financing Receivable Allowance For Credit Loss Additional Information [Abstract] |  |
Reinsurance paid percentage of total assets | 1.00% |
Premiums Receivable Gross | $ 2.0 |
Credit card receivables |  |
Receivables [Abstract] |  |
Average Historical Chargeback Term | For credit card receivable, the Company uses a trailing 13 months average historical chargeback percentage of total credit card receivable. The Company rents equipment to corporate customers in which payment terms are 30 days. |
Commercial Real Estate Portfolio Segment [Member] |  |
Financing Receivable Allowance For Credit Loss Additional Information [Abstract] |  |
Modeling of mortgage loans | Loans that management has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are reported at amortized cost. Modeling for the Company‘s mortgage loans is based on inputs most highly correlated to defaults, including loan-to-value, occupancy, and payment history. Historical credit loss experience provides additional support for the estimation of expected credit losses. In assessing the credit losses, the portfolio is reviewed on a collective basis, using loan-specific cash flows to determine the fair value of the collateral in the event of default. Adjustments to this analysis are made to assess loans with a loan-to-value of 65% or greater. These loans are evaluated on an individual basis and loan specific risk characteristics such as occupancy levels, expense, income growth and other relevant available information from internal and external sources relating to past events, current conditions, and reasonable and supportable forecasts. |

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- Definition Evaluation and assessment of customer credit worthiness over a specified time. + References No definition available. + Details
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- Definition Includes any additional disclosures related to the credit quality of financing receivables. This may include a description of a credit quality indicator or a description of how the internal risk ratings used by a company relate to the likelihood of loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953659-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953664-111524 + Details
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- Definition The gain (loss) resulting from the sale of credit card receivables (portfolios). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599 + Details
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