v3.26.3
FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt $ 11,966,710 $ 11,160,596
Principal Amount Outstanding 12,251,407 11,194,548
Line of Credit    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 11,966,710 11,160,596
Line of Credit | Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 12,048,113 11,244,128
Revolving Credit Facility | Line of Credit    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 2,101,059 2,525,642
Principal Amount Outstanding 2,104,596 2,523,737
Revolving Credit Facility | Line of Credit | Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 2,101,059 2,525,642
SG Funding Facility | Line of Credit    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 1,470,811 612,811
Principal Amount Outstanding 1,470,811 612,811
SG Funding Facility | Line of Credit | Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 1,470,811 612,811
SB Funding Facility | Line of Credit    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 650,000 400,000
Principal Amount Outstanding 650,000 400,000
SB Funding Facility | Line of Credit | Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 650,000 400,000
BNP Funding Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Principal Amount Outstanding   900
BNP Funding Facility | Line of Credit    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 568,000 900,000
Long-term debt, fair value 568,000 900,000
Principal Amount Outstanding 568,000 900,000
January 2037 CLO Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Principal Amount Outstanding 694,100  
January 2037 CLO Notes | Line of Credit    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt   473,310
Long-term debt, fair value 473,501 473,310
January 2037 CLO Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Principal Amount Outstanding 476,000 476,000
April 2038 CLO Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Principal Amount Outstanding 499,100  
April 2038 CLO Debt | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt   348,196
Long-term debt, fair value 348,312 348,196
Principal Amount Outstanding 350,000 350,000
January 2039 CLO Debt | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 530,259 529,820
Long-term debt, fair value 530,259 529,820
Principal Amount Outstanding 532,000 532,000
March 2028 Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 984,196 1,004,008
Long-term debt, fair value 993,690 1,013,110
Principal Amount Outstanding 1,000,000 1,000,000
September 2028 Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 582,416 597,103
Long-term debt, fair value 592,182 604,992
Principal Amount Outstanding 600,000 600,000
January 2029 Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 573,479 589,036
Long-term debt, fair value 581,742 593,616
Principal Amount Outstanding 600,000 600,000
August 2029 Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 677,992 705,261
Principal Amount Outstanding 700,000 700,000
August 2029 Notes | Unsecured Debt | Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 696,129 717,759
February 2030 Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 702,715 731,239
Long-term debt, fair value 722,430 757,665
Principal Amount Outstanding 750,000 750,000
September 2030 Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 472,698 496,117
Long-term debt, fair value 479,845 505,680
Principal Amount Outstanding 500,000 500,000
January 2031 Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 459,545 483,459
Long-term debt, fair value 465,125 491,060
Principal Amount Outstanding 500,000 500,000
April 2031 Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 654,482 0
Long-term debt, fair value 658,028 0
Principal Amount Outstanding 700,000 0
March 2032 Notes | Unsecured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt 717,245 764,594
Long-term debt, fair value 717,000 770,467
Principal Amount Outstanding $ 750,000 $ 750,000