Quarterly report pursuant to Section 13 or 15(d)

Credit facilities and commercial paper notes (Details)

v3.24.1.u1
Credit facilities and commercial paper notes (Details) - USD ($)
 3 Months Ended
Jun. 30, 2024
Mar. 31, 2024
Mar. 31, 2023
May 08, 2024
Dec. 31, 2023
Line of Credit Facility [Line Items]          
Draw   $ 250,000,000 $ 312,000,000    
Credit facilities   201,270,000     $ 400,861,000
Credit facilities | Unsecured Revolving Credit Facility, Maturing February 2025          
Line of Credit Facility [Line Items]          
Principal amount   915,000,000      
Outstanding credit facility   $ 201,000,000      
Effective interest rate (as a percent)   7.25%      
Unamortized debt issuance costs   $ 2,000,000      
Term loan fee (as a percent)   1.875%      
Credit facilities | Unsecured Revolving Credit Facility, Maturing February 2025 | Subsequent Event          
Line of Credit Facility [Line Items]          
Principal amount       $ 1,250,000,000  
Draw $ 275,000,000        
Credit facilities | Unsecured Revolving Credit Facility, Maturing February 2025 | SOFR          
Line of Credit Facility [Line Items]          
Variable rate   1.875%      
Credit facilities | Unsecured Revolving Credit Facility, Maturing February 2025 | 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%      
Line of Credit | Unsecured Revolving Credit Facility, Maturing February 2025 | SOFR | Term Loan Facility          
Line of Credit Facility [Line Items]          
Variable rate, maximum downward adjustment (in percent)   0.10%      
Commercial Paper | CarbonCount Green Commercial Paper Note Program          
Line of Credit Facility [Line Items]          
Principal amount   $ 100,000,000      
Effective interest rate (as a percent)   6.77%      
Credit facility remaining no of days (in days)   397 days      
Credit facilities   $ 65,000,000      
Broker fee percent (as a percent)   0.0010      
Unamortized financing costs   $ 0      
Letter of Credit | CarbonCount Green Commercial Paper Note Program          
Line of Credit Facility [Line Items]          
Principal amount   $ 100,000,000      
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      
Letter of Credit | CarbonCount Green Commercial Paper Note Program | Subsequent Event          
Line of Credit Facility [Line Items]          
Principal amount       $ 125,000,000  
Letter of Credit | CarbonCount Green Commercial Paper Note Program | SOFR | Variable Rate Component One          
Line of Credit Facility [Line Items]          
Variable rate   2.125%      
Letter of Credit | CarbonCount Green Commercial Paper Note Program | SOFR | Variable Rate Component Two          
Line of Credit Facility [Line Items]          
Variable rate   0.10%