Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS - Schedule of Debt (Details)

v3.22.2.2
BORROWINGS - Schedule of Debt (Details) - USD ($)
Sep. 30, 2022
Aug. 31, 2022
Mar. 31, 2022
Sep. 30, 2021
Aug. 31, 2021
Mar. 31, 2021
Debt Instrument [Line Items]            
Aggregate Principal Amount $ 279,088,000     $ 276,484,000    
Total borrowings $ 273,402,000   $ 261,348,000      
Indebtedness asset coverage on our senior securities 254.10%   252.90%      
Notes Payable            
Debt Instrument [Line Items]            
Notes Outstanding $ 10,499,500,000   $ 10,499,500,000      
Aggregate Principal Amount 262,488,000   262,488,000      
Less: Unamortized Discounts (5,686,000)   (6,236,000)      
Total borrowings $ 256,802,000   $ 256,252,000      
Notes Payable | 5.00% Notes due 2026            
Debt Instrument [Line Items]            
Interest Rate 5.00%   5.00%     5.00%
Notes Outstanding $ 5,117,500,000   $ 5,117,500,000      
Principal Amount per Note 25,000.00   25,000.00      
Aggregate Principal Amount $ 127,938,000   $ 127,938,000     $ 127,900,000
Notes Payable | 4.875% Notes due 2028            
Debt Instrument [Line Items]            
Interest Rate 4.875% 4.875% 4.875%   4.875%  
Notes Outstanding $ 5,382,000,000   $ 5,382,000,000      
Principal Amount per Note 25,000.00   25,000.00      
Aggregate Principal Amount $ 134,550,000   $ 134,550,000   $ 134,600,000