Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Significant Accounting Policies - Narrative (Details)

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Basis of Presentation and Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Millions
 1 Months Ended 2 Months Ended 3 Months Ended
Feb. 26, 2024
Feb. 15, 2024
Jan. 18, 2024
Dec. 01, 2023
Nov. 01, 2023
Jul. 21, 2023
Jun. 08, 2023
Mar. 27, 2023
Jan. 18, 2023
Jan. 31, 2024
Feb. 28, 2024
Dec. 01, 2023
Mar. 31, 2024
Mar. 31, 2023
Mar. 27, 2024
Dec. 31, 2023
Oct. 16, 2023
Dec. 21, 2022
Nov. 21, 2022
Jul. 23, 2021
May 26, 2021
May 26, 2018
Oct. 19, 2017
Related Party Transaction [Line Items]                                              
Allowance for doubtful accounts specific reserves                         $ 0.2 $ 0.0                  
Amount release on hold                             $ 18.2                
Cobra Acquisitions                                              
Related Party Transaction [Line Items]                                              
Proceeds from legal settlements       $ 46.1                                      
Proceeds from financing transaction, net       46.1                                      
Litigation settlement, amount to be received           $ 72.0   $ 99.0                              
Amount awarded from FEMA               210.0 $ 13.4                            
Puerto Rico Electric Power Authority (PREPA)                                              
Related Party Transaction [Line Items]                                              
Litigation settlement, amount to be received             $ 99.0                                
Litigation amount in dispute     $ 70.4                                        
Withheld payments revoked   $ 9.0                                          
Puerto Rico Electric Power Authority (PREPA)                                              
Related Party Transaction [Line Items]                                              
Interest income on delinquent accounts                         10.5 $ 11.2                  
Interest charged on accounts receivable                         208.0     $ 197.5              
Accounts receivable, contract costs, amount expected to be authorized                                   $ 68.1 $ 5.6 $ 47.0 $ 47.0    
Puerto Rico Electric Power Authority (PREPA) | Cobra Acquisitions                                              
Related Party Transaction [Line Items]                                              
Payment pending from third party                         140.8                    
Agreement amount                                           $ 900.0 $ 945.0
Accounts receivable, reimbursement amount                         99.0                    
Proceeds from legal settlements                         22.2                    
Proceeds from financing transaction, net                       $ 8.6                      
Litigation amount in dispute         $ 1.5                                    
Puerto Rico Electric Power Authority (PREPA) | Cobra Acquisitions And SPCP Group                                              
Related Party Transaction [Line Items]                                              
Proceeds from financing transaction, net $ 50.6                 $ 13.4 $ 64.0   64.0                    
Cobra Acquisitions | Puerto Rico Electric Power Authority (PREPA)                                              
Related Party Transaction [Line Items]                                              
Accounts receivable, contract costs, amount expected to be authorized                                 $ 54.4            
Litigation settlement, amount to be received         $ 82.4     $ 111.0                              
Cobra Acquisitions | SPCP Group                                              
Related Party Transaction [Line Items]                                              
Proceeds from financing transaction, net 41.0                   54.4   54.4                    
SPCP Group | Cobra Acquisitions                                              
Related Party Transaction [Line Items]                                              
Accounts receivable, contract costs, amount expected to be authorized       $ 54.4               $ 54.4                      
Proceeds from financing transaction, net $ 9.6                   $ 9.6   $ 9.6