v3.26.1
Debt - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2026
Apr. 17, 2026
Corporate Segment [Member] | Senior Notes due 2028 | 7.75% Senior Notes Due 2028      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 7.75% 7.75%  
Corporate Segment [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Current Borrowing Capacity $ 600.0 $ 600.0  
Line of Credit Facility, Remaining Borrowing Capacity $ 592.4 $ 592.4  
Debt Instrument, Basis Spread on Variable Rate   1.50%  
Debt Instrument, Interest Rate, Effective Percentage 5.12% 5.12%  
Line Of Credit Facility Additional Borrowing Capacity $ 300.0 $ 300.0  
Line of Credit Facility, Interest Rate at Period End 0.20% 0.20%  
Corporate Segment [Member] | Letter of Credit [Member] | Line of Credit [Member]      
Debt Instrument [Line Items]      
Letters of Credit Outstanding, Amount $ 7.6 $ 7.6  
TILC [Member] | Leasing & Services | Revolving Credit Facility [Member] | Line of Credit [Member] | TILC Warehouse Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Current Borrowing Capacity 800.0 800.0  
Proceeds from Lines of Credit   75.1  
Repayments of Lines of Credit   40.4  
Line of Credit Facility, Remaining Borrowing Capacity $ 286.8 $ 286.8  
Debt Instrument, Basis Spread on Variable Rate   1.75%  
Debt Instrument, Interest Rate, Effective Percentage 5.37% 5.37%  
Wholly-owned subsidiaries | Leasing & Services | Secured Debt [Member] | TRL-2025 Series 2026-1 Class A Green Secured Railcar Equipment Notes [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage     5.35%
Debt Instrument, Face Amount     $ 447.4
Wholly-owned subsidiaries | Leasing & Services | Secured Debt [Member] | TRL-2025 Series 2026-1 Class B Green Secured Railcar Equipment Notes [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage     5.56%
Debt Instrument, Face Amount     $ 33.4
Wholly-owned subsidiaries | Leasing & Services | Secured Debt [Member] | TRL-2019 Series 2019-1 Secured Railcar Equipment Notes [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage     3.82%
Repayments of Debt $ 377.1    
Minimum | Corporate Segment [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Interest Rate at Period End 0.175% 0.175%  
Maximum | Corporate Segment [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Interest Rate at Period End 0.30% 0.30%