Debt - Schedule of Maturity of Debt Obligations (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Total	$ 8,291,173	$ 9,390,288
Less than 1 year	1,075,000
1-3 years	2,350,000
3-5 years	2,691,000
After 5 years	2,175,173
SPV Asset Facility II \| Line of Credit
Debt Instrument [Line Items]
Total	300,000	161,700
Less than 1 year	0
1-3 years	0
3-5 years	0
After 5 years	300,000
SPV Asset Facility V \| Line of Credit
Debt Instrument [Line Items]
Total	438,500	384,000
Less than 1 year	0
1-3 years	0
3-5 years	438,500
After 5 years	0
SPV Asset Facility VI \| Line of Credit
Debt Instrument [Line Items]
Total	432,000	300,000
Less than 1 year	0
1-3 years	0
3-5 years	432,000
After 5 years	0
CLO III \| Secured Debt
Debt Instrument [Line Items]
Total	260,000	260,000
Less than 1 year	0
1-3 years	0
3-5 years	0
After 5 years	260,000
CLO IV \| Secured Debt
Debt Instrument [Line Items]
Total	217,300	275,463
Less than 1 year	0
1-3 years	0
3-5 years	0
After 5 years	217,300
CLO V \| Secured Debt
Debt Instrument [Line Items]
Total	503,373	509,625
Less than 1 year	0
1-3 years	0
3-5 years	0
After 5 years	503,373
CLO VII \| Secured Debt
Debt Instrument [Line Items]
Total	330,500	330,500
Less than 1 year	0
1-3 years	0
3-5 years	0
After 5 years	330,500
CLO X \| Secured Debt
Debt Instrument [Line Items]
Total	272,000	272,000
Less than 1 year	0
1-3 years	0
3-5 years	0
After 5 years	272,000
CLO XXVI \| Secured Debt
Debt Instrument [Line Items]
Total	292,000
Less than 1 year	0
1-3 years	0
3-5 years	0
After 5 years	292,000
2027 Notes \| Unsecured Debt
Debt Instrument [Line Items]
Total	500,000	500,000
Less than 1 year	500,000
1-3 years	0
3-5 years	0
After 5 years	0
April 2027 Notes \| Unsecured Debt
Debt Instrument [Line Items]
Total	325,000	325,000
Less than 1 year	325,000
1-3 years	0
3-5 years	0
After 5 years	0
July 2027 Notes \| Unsecured Debt
Debt Instrument [Line Items]
Total	250,000	250,000
Less than 1 year	250,000
1-3 years	0
3-5 years	0
After 5 years	0
2028 Notes \| Unsecured Debt
Debt Instrument [Line Items]
Total	850,000	850,000
Less than 1 year	0
1-3 years	850,000
3-5 years	0
After 5 years	0
June 2028 Notes \| Unsecured Debt
Debt Instrument [Line Items]
Total	100,000	100,000
Less than 1 year	0
1-3 years	100,000
3-5 years	0
After 5 years	0
September 2028 Notes \| Unsecured Debt
Debt Instrument [Line Items]
Total	400,000
Less than 1 year	0
1-3 years	400,000
3-5 years	0
After 5 years	0
2029 Notes \| Unsecured Debt
Debt Instrument [Line Items]
Total	1,000,000	1,000,000
Less than 1 year	0
1-3 years	1,000,000
3-5 years	0
After 5 years	0
2030 Notes \| Unsecured Debt
Debt Instrument [Line Items]
Total	500,000	500,000
Less than 1 year	0
1-3 years	0
3-5 years	500,000
After 5 years	0
2031 Notes \| Unsecured Debt
Debt Instrument [Line Items]
Total	400,000
Less than 1 year	0
1-3 years	0
3-5 years	400,000
After 5 years	0
Revolving Credit Facility \| Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Total	920,500	$ 1,012,000
Less than 1 year	0
1-3 years	0
3-5 years	920,500
After 5 years	$ 0