v3.26.1
Derivative Instruments and Fair Value Accounting Not Designated (Details) - Not Designated as Hedging Instrument - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
TILC Warehouse Back to Back Swap Agreements - Open        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Derivative Asset [1] $ 6.7   $ 6.7  
Derivative Liability [1] 0.0   0.0  
TILC Warehouse Back to Back Swap Agreements - Open | Location, Statement of Income, Balance [Axis]: us-gaap:OtherOperatingIncomeExpenseNet        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax [1] (0.9) $ 1.0 (3.4) $ 3.9
TILC Back to Back Swap Agreements - Open        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Derivative Asset [1] 0.0   0.0  
Derivative Liability [1] 6.7   6.7  
TILC Back to Back Swap Agreements - Open | Location, Statement of Income, Balance [Axis]: us-gaap:OtherOperatingIncomeExpenseNet        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax [1] $ 0.9 $ (1.0) $ 3.4 $ (3.9)
[1] Comprised of back-to-back interest rate caps entered into with the same counterparty in connection with our risk management objectives.