Quarterly report pursuant to Section 13 or 15(d)

Debt - Additional Information (Details)

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Debt - Additional Information (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Debt Instrument [Line Items]    
Other subsidiary debt $ 1,234.4 $ 1,107.9
2029 Senior Notes    
Debt Instrument [Line Items]    
Debt instruments, principal payments 20.0  
2029 Senior Notes | AST    
Debt Instrument [Line Items]    
Principal amount of notes issued 120.0  
ABL Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity 301.8  
Principal amount borrowed 149.7  
Letters of credit outstanding amount 10.1  
Remaining credit facility 142.0  
Monarch Note    
Debt Instrument [Line Items]    
Debt instruments, principal payments 21.9  
Equify Note    
Debt Instrument [Line Items]    
Debt instruments, principal payments 2.7  
Revolving Credit Facility | BPC    
Debt Instrument [Line Items]    
Other subsidiary debt 5.0  
Finance Lease Obligations | BPC    
Debt Instrument [Line Items]    
Other subsidiary debt 6.5  
Note Payable | BPC    
Debt Instrument [Line Items]    
Other subsidiary debt $ 9.4  
Minimum | Alpine 2023 Term Loan    
Debt Instrument [Line Items]    
Debt instrument, leverage ratio 2.00%  
Maximum | Alpine 2023 Term Loan    
Debt Instrument [Line Items]    
Debt instrument, leverage ratio 1.00%