v3.26.3
DEBT - Schedule of Outstanding Debt (Details) - USD ($)
Oct. 30, 2026
Sep. 30, 2026
Dec. 31, 2025
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   $ 16,421,000,000 $ 13,583,000,000
Principal Amount Outstanding   12,251,407,000 11,194,548,000
Carrying Value   11,966,710,000 11,160,596,000
Line of Credit      
Line of Credit Facility [Line Items]      
Carrying Value   11,966,710,000 11,160,596,000
Revolving Credit Facility | Line of Credit      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   4,138,000,000 3,250,000,000
Principal Amount Outstanding   2,104,596,000 2,523,737,000
Carrying Value   2,101,059,000 2,525,642,000
Borrowing capacity increase   6,150,000,000 4,553,000,000
SG Funding Facility | Line of Credit      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   2,325,000,000 1,825,000,000
Principal Amount Outstanding   1,470,811,000 612,811,000
Carrying Value   1,470,811,000 612,811,000
Borrowing capacity increase   2,500,000,000  
SB Funding Facility | Line of Credit      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   1,500,000,000 750,000,000
Principal Amount Outstanding   650,000,000 400,000,000
Carrying Value   650,000,000 400,000,000
Current borrowing capacity   1,125,000,000  
SB Funding Facility | Line of Credit | Subsequent Event      
Line of Credit Facility [Line Items]      
Current borrowing capacity $ 375,000    
BNP Funding Facility      
Line of Credit Facility [Line Items]      
Principal Amount Outstanding     900,000
BNP Funding Facility | Line of Credit      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   1,000,000,000 1,000,000,000
Principal Amount Outstanding   568,000,000 900,000,000
Carrying Value   568,000,000 900,000,000
Total January 2037 CLO Secured Notes | Line of Credit      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   476,000,000 476,000,000
Principal Amount Outstanding   476,000,000 476,000,000
Carrying Value   473,501,000 473,310,000
April 2038 CLO Debt      
Line of Credit Facility [Line Items]      
Principal Amount Outstanding   350,000,000  
April 2038 CLO Debt | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   350,000,000 350,000,000
Principal Amount Outstanding   350,000,000 350,000,000
Carrying Value   348,312,000 348,196,000
January 2039 CLO Debt | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   532,000,000 532,000,000
Principal Amount Outstanding   532,000,000 532,000,000
Carrying Value   530,259,000 529,820,000
March 2028 Notes | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   1,000,000,000 1,000,000,000
Principal Amount Outstanding   1,000,000,000 1,000,000,000
Carrying Value   984,196,000 1,004,008,000
September 2028 Notes | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   600,000,000 600,000,000
Principal Amount Outstanding   600,000,000 600,000,000
Carrying Value   582,416,000 597,103,000
January 2029 Notes | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   600,000,000 600,000,000
Principal Amount Outstanding   600,000,000 600,000,000
Carrying Value   573,479,000 589,036,000
August 2029 Notes | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   700,000,000 700,000,000
Principal Amount Outstanding   700,000,000 700,000,000
Carrying Value   677,992,000 705,261,000
February 2030 Notes | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   750,000,000 750,000,000
Principal Amount Outstanding   750,000,000 750,000,000
Carrying Value   702,715,000 731,239,000
September 2030 Notes | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   500,000,000 500,000,000
Principal Amount Outstanding   500,000,000 500,000,000
Carrying Value   472,698,000 496,117,000
January 2031 Notes | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   500,000,000 500,000,000
Principal Amount Outstanding   500,000,000 500,000,000
Carrying Value   459,545,000 483,459,000
April 2031 Notes | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   700,000,000 0
Principal Amount Outstanding   700,000,000 0
Carrying Value   654,482,000 0
March 2032 Notes | Unsecured Debt      
Line of Credit Facility [Line Items]      
Total Aggregate Principal Amount Committed/ Outstanding   750,000,000 750,000,000
Principal Amount Outstanding   750,000,000 750,000,000
Carrying Value   $ 717,245,000 $ 764,594,000