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Allowance for Credit Losses (Narratives) (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Mar. 31, 2024
Financing Receivable Impaired [Line Items] |  |
Percentage of estimated gain loss | 6.00% | 5.00%
Paid and unpaid percentage | 1.00% |
Allowance for expected credit losses | $ 7.6 | $ 6.2
Available for sale securities, accrued interest receivable | 29.3 | 29.3
Premiums Receivable Gross | $ 4.1 |
Commercial Real Estate Portfolio Segment [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Premiums Receivable Gross |  | $ 0.1
Credit card receivables |  |
Financing Receivable Impaired [Line Items] |  |
Average Historical Chargeback Term | For credit card receivables, the Company uses a trailing 13-month average historical chargeback percentage of total credit card receivables to estimate a credit loss reserve. The Company rents equipment to corporate customers for which the payment terms are 30 days. |
Accrued interest receivables |  |
Financing Receivable Impaired [Line Items] |  |
Average Historical Chargeback Term | 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. |

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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 -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-3 + Details
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