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Financial Instruments and Other Guarantees - Narratives (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jan. 18, 2024
Feb. 03, 2023
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Apr. 14, 2023
Mar. 31, 2023
Feb. 13, 2023
Guarantee Obligations [Line Items]                    
Line of Credit Facility, Current Borrowing Capacity               $ 237.2    
Net loss on early debt extinguishment     $ 0.0 $ 0.0 $ 0.0 $ 8.8        
Interest expense, net of capitalized interest     9.7 13.8 35.1 45.5        
Restricted Cash     705.6   705.6   $ 680.9      
Difference between penal sum of all surety bonds and amount of collateral posted in favor of surety providers     507.3   507.3          
Capitalized debt issuance costs related to bank guarantees         1.4          
Cash-backed bank guarantee facilities     187.9   187.9          
Letter of Credit                    
Guarantee Obligations [Line Items]                    
Letters of credit outstanding, amount     98.6   98.6          
Proceeds from Issuance of Debt   $ 324.0                
Line of Credit Facility, Increase (Decrease), Net   $ (65.0)                
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   6.00%                
Line of Credit Facility, Commitment Fee Percentage 0.50% 0.50%                
Collateralized Letter of Credit Agreement                    
Guarantee Obligations [Line Items]                    
Letters of credit outstanding, amount     116.6   116.6          
Line of credit facility, maximum borrowing capacity     $ 250.0   $ 250.0          
Cash Collateral, Percentage of the aggregate amount of letters of credit outstanding     103.00%   103.00%          
Cash-collateralized Letters of Credit     $ 120.1   $ 120.1          
Stated interest rate     0.75%   0.75%          
Surety Trust Account                    
Guarantee Obligations [Line Items]                    
Restricted Cash     $ 397.6   $ 397.6   $ 444.0   $ 566.3  
Accounts Receivable Securitization Program                    
Guarantee Obligations [Line Items]                    
Line of Credit Facility, Previous Maximum Borrowing Capacity                   $ 175.0
Line of credit facility, maximum borrowing capacity                   $ 225.0
Accounts Receivable Securitization Program | Secured debt                    
Guarantee Obligations [Line Items]                    
Letters of credit outstanding, amount     60.4   $ 60.4          
Basis spread on variable rate         2.10%          
Maximum                    
Guarantee Obligations [Line Items]                    
Debt Instrument, Collateral Amount               $ 721.8    
Basis spread on variable rate 3.25%                  
Maximum | Letter of Credit                    
Guarantee Obligations [Line Items]                    
Basis spread on variable rate 4.25%                  
Maximum | Collateralized Letter of Credit Agreement                    
Guarantee Obligations [Line Items]                    
Transaction support agreements, additional collateral demands     5.0   $ 5.0          
Minimum                    
Guarantee Obligations [Line Items]                    
Basis spread on variable rate 2.50%                  
Minimum | Letter of Credit                    
Guarantee Obligations [Line Items]                    
Basis spread on variable rate 3.50%                  
Surety Bond                    
Guarantee Obligations [Line Items]                    
Debt Instrument, Transaction Support Agreements, Additional Collateral Posted                 140.5  
Debt Instrument, Transaction Support Agreement, Additional Collateral Held                 $ 15.0  
Surety Agreement Liquidity Covenant, Amount     $ 400.0   $ 400.0          
Surety Bond | Maximum                    
Guarantee Obligations [Line Items]                    
Net Leverage Ratio     1.5   1.5          
Surety Bond | Minimum                    
Guarantee Obligations [Line Items]                    
Net Leverage Ratio     1.0   1.0          
Senior Notes | 3.250% Convertible Senior Notes due March 2028 (2028 Convertible Notes)                    
Guarantee Obligations [Line Items]                    
Debt Instrument, Funded, Percent     50.00%   50.00%          
Stated interest rate     3.25%   3.25%          
Secured debt | Accounts Receivable Securitization Program                    
Guarantee Obligations [Line Items]                    
Outstanding borrowings     $ 0.0   $ 0.0          
Accounts Receivable from Securitization     95.6   95.6          
Interest expense, net of capitalized interest     $ 0.5 $ 0.9 $ 1.9 $ 2.8