Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Private Unsecured Notes (Details)

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Borrowings - Private Unsecured Notes (Details) - USD ($)
$ in Thousands
 6 Months Ended
Apr. 18, 2024
Jan. 30, 2024
Jun. 30, 2024
Jun. 30, 2023
Jun. 18, 2024
Dec. 31, 2023
Sep. 14, 2023
Mar. 15, 2023
Nov. 14, 2022
Debt Instrument [Line Items]                  
Carrying value     $ 1,793,946     $ 888,221      
Borrowings on debt     3,062,601 $ 2,253,726          
November 2025 notes | Senior notes                  
Debt Instrument [Line Items]                  
Maximum interest rate increase                 2.00%
Maximum principal amount     170,000     170,000     $ 170,000
Applicable margin rate (as a percent)                 8.37%
Company Receives                 8.37%
Derivative basis spread on variable rate                 4.08%
Carrying value                 $ 85,000
November 2027 notes | Senior notes                  
Debt Instrument [Line Items]                  
Maximum principal amount     155,000     155,000     $ 155,000
Applicable margin rate (as a percent)                 8.43%
Company Receives                 8.43%
Derivative basis spread on variable rate                 4.42%
Carrying value                 $ 77,500
March 2026 notes | Senior notes                  
Debt Instrument [Line Items]                  
Maximum principal amount     276,000     276,000   $ 276,000  
Applicable margin rate (as a percent)               8.12%  
Company Receives               8.12%  
Derivative basis spread on variable rate               3.761%  
Carrying value               $ 276,000  
March 2028 notes | Senior notes                  
Debt Instrument [Line Items]                  
Maximum principal amount     124,000     124,000   $ 124,000  
Applicable margin rate (as a percent)               8.17%  
Company Receives               8.18%  
Derivative basis spread on variable rate               4.241%  
Carrying value               $ 124,000  
September 2027 notes | Senior notes                  
Debt Instrument [Line Items]                  
Maximum principal amount     75,000     75,000 $ 75,000    
Applicable margin rate (as a percent)             8.67%    
Company Receives             8.67%    
Derivative basis spread on variable rate             4.3055%    
Carrying value             $ 75,000    
September 2028 notes | Senior notes                  
Debt Instrument [Line Items]                  
Maximum principal amount     250,000     $ 250,000 $ 250,000    
Applicable margin rate (as a percent)             8.80%    
Company Receives             8.80%    
Derivative basis spread on variable rate             4.5365%    
Carrying value             $ 250,000    
January 2029 notes                  
Debt Instrument [Line Items]                  
Applicable margin rate (as a percent)   6.75%              
Proceeds from notes payable   $ 550,000              
January 2029 notes | Interest rate swap                  
Debt Instrument [Line Items]                  
Interest rate, effective percentage   6.75%              
Basis spread on variable rate   2.876%              
Borrowings on debt   $ 550,000              
January 2029 notes | Senior notes                  
Debt Instrument [Line Items]                  
Maximum principal amount     550,000            
September 2029 Notes                  
Debt Instrument [Line Items]                  
Applicable margin rate (as a percent)         6.25%        
Proceeds from notes payable $ 400,000                
September 2029 Notes | Interest rate swap                  
Debt Instrument [Line Items]                  
Interest rate, effective percentage         6.25%        
Basis spread on variable rate 2.0575%                
Borrowings on debt $ 400,000                
September 2029 Notes | Senior notes                  
Debt Instrument [Line Items]                  
Maximum principal amount     $ 400,000