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Allowance for Credit Losses (Narrative) (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 USD ($) risk_code | Mar. 31, 2023 USD ($) | Dec. 31, 2024 | Dec. 31, 2027 | Dec. 31, 2026 | Dec. 31, 2025 | Mar. 31, 2025 | Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Change in Modeled Expected Credit Losses due to Modification | $ |  | $ 30,500 |  |  |  |  |  |  |
Length of time projected by model |  | 10 years |  |  |  |  |  |  |
Days Past Due on Leases and Equipment Finance |  | 181 days |  |  |  |  |  |  |
Interest Income on Non-Accrual Loans and Leases | $ |  | $ 0 | $ 0 |  |  |  |  |  |
Moody's Analytics' February 2024 S2 |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Probability economy performs better than scenario |  | 75.00% |  |  |  |  |  |  |
Probability economy performs worse than scenario |  | 25.00% |  |  |  |  |  |  |
Non homogeneous |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Financing Receivable, Threshold Period Past Due |  | 90 days |  |  |  |  |  |  |
Pass | Non homogeneous | Minimum |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 1 |  |  |  |  |  |  |
Pass | Non homogeneous | Maximum |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 9 |  |  |  |  |  |  |
Watch | Non homogeneous | Minimum |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 10 |  |  |  |  |  |  |
Watch | Non homogeneous | Maximum |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 11 |  |  |  |  |  |  |
Special mention | Non homogeneous |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 12 |  |  |  |  |  |  |
Substandard | Non homogeneous | Minimum |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 13 |  |  |  |  |  |  |
Substandard | Non homogeneous | Maximum |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 14 |  |  |  |  |  |  |
Doubtful | Non homogeneous |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 15 |  |  |  |  |  |  |
Loss | Non homogeneous |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 16 |  |  |  |  |  |  |
Loss | Non homogeneous | Maximum |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Internal risk rating code (number) |  | 16 |  |  |  |  |  |  |
Expected | Moody's Analytics' February 2024 baseline |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Real GDP Growth |  |  |  |  | 2.20% | 2.00% | 1.60% |  | 2.30%
Unemployment Rate |  |  |  |  | 4.00% | 4.00% | 4.10% |  | 3.90%
Fed Funds Rate |  |  |  |  | 2.90% | 3.20% | 4.00% |  | 4.90%
Expected | Moody's Analytics' February 2024 S2 |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Real GDP Growth |  |  |  |  | 2.70% | 2.80% | 0.80% |  | 1.30%
Unemployment Rate |  |  |  |  | 4.00% | 4.10% | 5.80% |  | 5.70%
Fed Funds Rate |  |  |  |  | 2.90% | 2.10% | 2.40% |  | 4.60%
Expected | Maximum | Moody's Analytics' February 2024 S2 |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |
Unemployment Rate | 6.50% |  |  |  |  |  |  |  |
Change in Unemployment Rate |  |  |  |  |  |  |  | 1.00% |
Percent Decrease of Stock Market |  |  |  | 22.00% |  |  |  |  |

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