Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS - Schedule of Debt (Details)

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BORROWINGS - Schedule of Debt (Details)
$ in Thousands
Jun. 30, 2024
USD ($)
note
Mar. 31, 2024
USD ($)
note
Jun. 30, 2023
USD ($)
May 31, 2023
USD ($)
Aug. 31, 2021
USD ($)
Mar. 31, 2021
USD ($)
Debt Instrument [Line Items]            
Aggregate Principal Amount $ 400,938   $ 383,438      
Total borrowings $ 395,385 $ 398,345        
Indebtedness asset coverage on our senior securities 216.30% 219.00%        
Notes Payable            
Debt Instrument [Line Items]            
Notes Outstanding | note 13,489,500 13,489,500        
Aggregate Principal Amount $ 337,238 $ 337,238        
Less: Unamortized Discounts (5,553) (5,893)        
Total borrowings $ 331,685 $ 331,345        
Notes Payable | 5.00% 2026 Notes            
Debt Instrument [Line Items]            
Interest Rate 5.00% 5.00%       5.00%
Notes Outstanding | note 5,117,500 5,117,500        
Principal Amount per Note 25.00 25.00        
Aggregate Principal Amount $ 127,938 $ 127,938       $ 127,900
Notes Payable | 4.875% 2028 Notes            
Debt Instrument [Line Items]            
Interest Rate 4.875% 4.875%     4.875%  
Notes Outstanding | note 5,382,000 5,382,000        
Principal Amount per Note 25.00 25.00        
Aggregate Principal Amount $ 134,550 $ 134,550     $ 134,600  
Notes Payable | 8.00% 2028 Notes            
Debt Instrument [Line Items]            
Interest Rate 8.00% 8.00%   8.00%    
Notes Outstanding | note 2,990,000 2,990,000        
Principal Amount per Note 25.00 25.00        
Aggregate Principal Amount $ 74,750 $ 74,750   $ 74,800