v3.26.3
DEBT - Schedule of Components of Debt Interest Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Line of Credit Facility [Line Items]        
Amortization of debt issuance costs     $ 20,238 $ 12,213
Net (gain) loss on interest rate swaps accounted for as hedge instruments and the related hedged items $ (1,345) $ 118 (2,026) 1,878
Total interest and credit facility fees expense 181,905 134,006 509,021 320,406
Cash paid for interest expense     468,419 278,422
Unsecured Debt        
Line of Credit Facility [Line Items]        
Stated interest expense     253,257 175,410
Amortization of debt issuance costs     8,381 4,603
Accretion of discount     8,787 4,850
Total interest and credit facility fees expense     272,451 182,985
Cash paid for interest expense     $ 258,579 $ 167,027
Average stated interest rate     5.54% 6.29%
Average outstanding balance     $ 6,025,641 $ 3,668,865
Senior Notes | Interest rate swaps | Designated as Hedging Instrument        
Line of Credit Facility [Line Items]        
Net (gain) loss on interest rate swaps accounted for as hedge instruments and the related hedged items     2,026 (1,878)
Revolving Credit Facility | Line of Credit        
Line of Credit Facility [Line Items]        
Stated interest expense 23,990 11,637 58,040 16,456
Credit facility fees 1,947 2,008 5,429 5,885
Amortization of debt issuance costs 2,075 1,163 4,771 2,860
Total interest and credit facility fees expense 28,012 14,808 68,240 25,201
Cash paid for interest expense $ 17,231 $ 12,759 $ 54,314 $ 22,348
Average stated interest rate 5.16% 5.91% 5.13% 5.93%
Average outstanding balance $ 1,819,735 $ 770,921 $ 1,490,535 $ 365,761
SG Funding Facility | Line of Credit        
Line of Credit Facility [Line Items]        
Stated interest expense 20,926 14,884 50,548 41,882
Credit facility fees 1,058 1,152 1,956 3,910
Amortization of debt issuance costs 1,105 958 3,218 2,854
Total interest and credit facility fees expense 23,089 16,994 55,722 48,646
Cash paid for interest expense $ 21,853 $ 16,239 $ 51,623 $ 46,016
Average stated interest rate 5.57% 6.23% 5.51% 6.34%
Average outstanding balance $ 1,470,811 $ 935,637 $ 1,209,034 $ 871,539
SB Funding Facility | Line of Credit        
Line of Credit Facility [Line Items]        
Stated interest expense 9,064 3,622 21,450 6,983
Credit facility fees 630 684 2,209 1,547
Amortization of debt issuance costs 420 244 1,179 576
Total interest and credit facility fees expense 10,114 4,550 24,838 9,106
Cash paid for interest expense $ 8,322 $ 2,532 $ 20,616 $ 6,761
Average stated interest rate 5.57% 6.20% 5.53% 6.25%
Average outstanding balance $ 636,957 $ 228,804 $ 511,538 $ 147,436
BNP Funding Facility | Line of Credit        
Line of Credit Facility [Line Items]        
Stated interest expense   6,224 25,133 15,405
Credit facility fees   0 661 150
Amortization of debt issuance costs   245 1,881 725
Total interest and credit facility fees expense 8,374 6,469 27,675 16,280
Cash paid for interest expense 7,537 $ 5,440 $ 27,398 $ 10,628
Average stated interest rate   5.71% 5.03% 5.70%
Average outstanding balance   $ 421,630 $ 659,308 $ 354,471
BNP Funding Facility | Unsecured Debt        
Line of Credit Facility [Line Items]        
Stated interest expense 7,483      
Credit facility fees 257      
Amortization of debt issuance costs $ 634      
Average stated interest rate 5.02%      
Average outstanding balance $ 582,837      
January 2037 CLO Secured Notes, April 2038 CLO Secured Debt And January 2039 CLO Secured Debt        
Line of Credit Facility [Line Items]        
Stated interest expense 18,194      
Amortization of debt issuance costs $ 4      
Average stated interest rate 5.24%      
Average outstanding balance $ 1,358,000      
January 2037 CLO Secured Notes, April 2038 CLO Secured Debt And January 2039 CLO Secured Debt | Secured Debt        
Line of Credit Facility [Line Items]        
Stated interest expense   12,093 53,771 30,776
Amortization of debt issuance costs   52 547 304
Total interest and credit facility fees expense 18,198 12,145 54,318 31,080
Cash paid for interest expense 27,257 $ 7,082 $ 49,460 $ 19,733
Average stated interest rate   5.73% 5.22% 5.81%
Average outstanding balance   $ 826,000 $ 1,358,000 $ 699,077
August 2029 Notes | Unsecured Debt        
Line of Credit Facility [Line Items]        
Stated interest expense 86,844 72,112    
Amortization of debt issuance costs 2,892 1,994    
Accretion of discount 3,037 2,085    
Total interest and credit facility fees expense 94,118 76,073    
Cash paid for interest expense $ 97,011 $ 68,486    
Average stated interest rate 5.57% 6.26%    
Average outstanding balance $ 6,100,000 $ 4,491,305    
August 2029 Notes | Senior Notes | Interest rate swaps | Designated as Hedging Instrument        
Line of Credit Facility [Line Items]        
Net (gain) loss on interest rate swaps accounted for as hedge instruments and the related hedged items $ 1,345 $ (118)