v3.25.1
Debt - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Apr. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
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%  
Corporate Segment [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Current Borrowing Capacity   $ 600.0  
Proceeds from Lines of Credit   0.0  
Repayments of Lines of Credit   0.0  
Line of Credit Facility, Remaining Borrowing Capacity   $ 591.3  
Debt Instrument, Basis Spread on Variable Rate   1.50%  
Debt Instrument, Interest Rate, Effective Percentage   5.96%  
Line of Credit Facility, Interest Rate at Period End   0.20%  
Long-term Line of Credit   $ 0.0 $ 0.0
Corporate Segment [Member] | Letter of Credit [Member] | Line of Credit [Member]      
Debt Instrument [Line Items]      
Letters of Credit Outstanding, Amount   8.7  
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  
Repayments of Lines of Credit   18.6  
Line of Credit Facility, Remaining Borrowing Capacity   $ 234.0  
Debt Instrument, Basis Spread on Variable Rate   1.75%  
Debt Instrument, Interest Rate, Effective Percentage   6.07%  
Long-term Line of Credit   $ 566.0 584.6
TILC [Member] | Leasing & Services | Revolving Credit Facility [Member] | Line of Credit [Member] | TILC Warehouse Facility [Member] | Subsequent Event      
Debt Instrument [Line Items]      
Repayments of Debt $ 75.8    
Wholly-owned subsidiaries | Leasing & Services | Line of Credit [Member] | TRL-2023 Term Loan      
Debt Instrument [Line Items]      
Long-term Line of Credit   $ 320.7 $ 323.4
Wholly-owned subsidiaries | Leasing & Services | Line of Credit [Member] | TRL-2023 Term Loan | Subsequent Event      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 1.50%    
Long-term Line of Credit $ 1,050.0    
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%  
Wholly-owned subsidiaries | Leasing & Services | Promissory Notes [Member] | 2017 Secured Railcar Equipment Notes [Member] [Domain] | Subsequent Event      
Debt Instrument [Line Items]      
Repayments of Debt $ 616.0    
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%  
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%