Fair Value Measurements - Fair Value Inputs, Quantitative Information (Details) - Fair Value, Nonrecurring [Member] $ in Millions	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Loans And Leases Receivable, Impaired Loans [Member] \| Estimated Fair Value
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Collateral-dependent loans	$ (21.5)	$ (97.6)
Loans And Leases Receivable, Impaired Loans [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Collateral-dependent loans	0.0	0.0
Loans And Leases Receivable, Impaired Loans [Member] \| Significant Other Observable Inputs (Level 2)
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Collateral-dependent loans	0.0	0.0
Loans And Leases Receivable, Impaired Loans [Member] \| Significant Unobservable Inputs (Level 3)
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Collateral-dependent loans	$ (21.5)	$ (97.6)
Loans And Leases Receivable, Impaired Loans [Member] \| Measurement Input, Discount Rate [Member] \| Significant Unobservable Inputs (Level 3) \| Minimum \| Valuation, Market Approach [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Servicing Asset, Measurement Input	0.02	0
Loans And Leases Receivable, Impaired Loans [Member] \| Measurement Input, Discount Rate [Member] \| Significant Unobservable Inputs (Level 3) \| Maximum [Member] \| Valuation, Market Approach [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Servicing Asset, Measurement Input	0.99	0.87
Loans And Leases Receivable, Impaired Loans [Member] \| Measurement Input, Discount Rate [Member] \| Significant Unobservable Inputs (Level 3) \| Weighted Average [Member] \| Valuation, Market Approach [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Servicing Asset, Measurement Input	(0.33)	(0.40)
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] \| Estimated Fair Value
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Long-lived assets to be disposed of by sale	$ (1.3)
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Long-lived assets to be disposed of by sale	0.0
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] \| Significant Other Observable Inputs (Level 2)
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Long-lived assets to be disposed of by sale	0.0
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] \| Significant Unobservable Inputs (Level 3)
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Long-lived assets to be disposed of by sale	$ (1.3)
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] \| Measurement Input, Discount Rate [Member] \| Significant Unobservable Inputs (Level 3) \| Minimum \| Valuation, Market Approach [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Servicing Asset, Measurement Input	0
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] \| Measurement Input, Discount Rate [Member] \| Significant Unobservable Inputs (Level 3) \| Maximum [Member] \| Valuation, Market Approach [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Servicing Asset, Measurement Input	0
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] \| Measurement Input, Discount Rate [Member] \| Significant Unobservable Inputs (Level 3) \| Weighted Average [Member] \| Valuation, Market Approach [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Servicing Asset, Measurement Input	0

Loans And Leases Receivable, Impaired Loans [Member] | Measurement Input, Discount Rate [Member] | Significant Unobservable Inputs (Level 3) | Minimum | Valuation, Market Approach [Member]

Loans And Leases Receivable, Impaired Loans [Member] | Measurement Input, Discount Rate [Member] | Significant Unobservable Inputs (Level 3) | Maximum [Member] | Valuation, Market Approach [Member]

Loans And Leases Receivable, Impaired Loans [Member] | Measurement Input, Discount Rate [Member] | Significant Unobservable Inputs (Level 3) | Weighted Average [Member] | Valuation, Market Approach [Member]

Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Estimated Fair Value

Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)

Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Significant Other Observable Inputs (Level 2)

Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Significant Unobservable Inputs (Level 3)

Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Measurement Input, Discount Rate [Member] | Significant Unobservable Inputs (Level 3) | Minimum | Valuation, Market Approach [Member]

Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Measurement Input, Discount Rate [Member] | Significant Unobservable Inputs (Level 3) | Maximum [Member] | Valuation, Market Approach [Member]

Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Measurement Input, Discount Rate [Member] | Significant Unobservable Inputs (Level 3) | Weighted Average [Member] | Valuation, Market Approach [Member]