v3.25.2
Debt - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2024
Apr. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Debt Instrument [Line Items]            
Loss on extinguishment of debt   $ 0.8 $ 1.5      
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        
Proceeds from Lines of Credit   75.0        
Repayments of Lines of Credit   75.0        
Line of Credit Facility, Remaining Borrowing Capacity $ 595.6 $ 595.6        
Debt Instrument, Basis Spread on Variable Rate   1.50%        
Debt Instrument, Interest Rate, Effective Percentage 5.90% 5.90%        
Line of Credit Facility, Interest Rate at Period End 0.20% 0.20%        
Long-term Line of Credit $ 0.0 $ 0.0       $ 0.0
Corporate Segment [Member] | Letter of Credit [Member] | Line of Credit [Member]            
Debt Instrument [Line Items]            
Letters of Credit Outstanding, Amount 4.4 4.4        
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   265.4        
Repayments of Lines of Credit   98.5        
Line of Credit Facility, Remaining Borrowing Capacity $ 48.5 $ 48.5        
Debt Instrument, Basis Spread on Variable Rate   1.75%        
Debt Instrument, Interest Rate, Effective Percentage 6.07% 6.07%        
Long-term Line of Credit $ 751.5 $ 751.5       584.6
Repayments of Debt $ 75.8          
Wholly-owned subsidiaries | Leasing & Services | Line of Credit [Member] | TRL-2023 Term Loan            
Debt Instrument [Line Items]            
Debt Instrument, Basis Spread on Variable Rate 1.50%          
Long-term Line of Credit $ 1,044.9 $ 1,044.9   $ 1,050.0 $ 320.7 $ 323.4
Payments of Debt Issuance Costs 5.6          
Wholly-owned subsidiaries | Leasing & Services | Promissory Notes [Member] | 2017 Secured Railcar Equipment Notes [Member] [Domain]            
Debt Instrument [Line Items]            
Debt Instrument, Basis Spread on Variable Rate   1.50%        
Repayments of Debt 616.0          
Loss on extinguishment of debt $ 0.8 $ 0.8        
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 0.40% 0.40%