Quarterly report pursuant to Section 13 or 15(d)

Credit facilities and commercial paper notes - Additional Information (Details)

v3.23.3
Credit facilities and commercial paper notes - Additional Information (Details) - USD ($)
 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Line of Credit Facility [Line Items]          
Unamortized debt issuance costs $ 2,000,000       $ 9,000,000
Proceeds from issuance of commercial paper notes 49,775,000 $ 50,000,000      
Credit facilities | Approval-Based Facility          
Line of Credit Facility [Line Items]          
Principal amount $ 200,000,000        
Credit facilities | Representation-Based Facility [Member]          
Line of Credit Facility [Line Items]          
Principal amount       $ 100,000,000  
Credit facilities | New Revolving Credit Facility          
Line of Credit Facility [Line Items]          
Principal amount     $ 840,000,000 $ 600,000,000  
Term loan fee (as a percent) 1.875%        
Credit facilities | New Revolving Credit Facility | SOFR          
Line of Credit Facility [Line Items]          
Variable rate 1.875%        
Credit facilities | New Revolving Credit Facility | SOFR | Minimum          
Line of Credit Facility [Line Items]          
Variable rate 0.10%        
Credit facilities | New Revolving Credit Facility | Prime Rate          
Line of Credit Facility [Line Items]          
Variable rate 0.875%        
Credit facilities | New Revolving Credit Facility | Additional Variable Rate          
Line of Credit Facility [Line Items]          
Variable rate 0.10%        
Credit facilities | Existing Unsecured Revolving Credit Facility          
Line of Credit Facility [Line Items]          
Outstanding credit facility $ 487,000,000        
Weighted average rate (as a percent) 7.25%        
Unamortized debt issuance costs $ 3,000,000        
Credit facilities | CarbonCount Green Commercial Paper Note Program          
Line of Credit Facility [Line Items]          
Weighted average rate (as a percent) 6.75%        
Line of Credit | CarbonCount Delayed Draw Term Loan Facility | Term Loan Facility          
Line of Credit Facility [Line Items]          
Unamortized debt issuance costs $ 3,000,000        
Line of Credit | CarbonCount Delayed Draw Term Loan Facility | SOFR | Term Loan Facility          
Line of Credit Facility [Line Items]          
Variable rate 2.125%        
Line of Credit | CarbonCount Delayed Draw Term Loan Facility | Additional Variable Rate | Term Loan Facility          
Line of Credit Facility [Line Items]          
Variable rate 0.10%        
Commercial Paper          
Line of Credit Facility [Line Items]          
Principal amount $ 100,000,000        
Credit facility remaining no of days (in days) 397 days        
Commercial Paper | CarbonCount Green Commercial Paper Note Program          
Line of Credit Facility [Line Items]          
Proceeds from issuance of commercial paper notes $ 50,000,000        
Broker fee percent (as a percent) 0.0010        
Unamortized financing costs $ 0        
Letter of Credit          
Line of Credit Facility [Line Items]          
Principal amount $ 100,000,000        
Letter of Credit | CarbonCount Green Commercial Paper Note Program          
Line of Credit Facility [Line Items]          
Percentage of drawn letter of credit (as a percent) 0.0140        
Unused letter of credit capacity (as a percent) 0.40%        
Reduced percentage of letter of credit fee (as a percent) 0.001