INVESTMENTS AND FAIR VALUE DISCLOSURES - Schedule of Change in Fair Value of Level III Measurements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 272,338	$ 2,521
Purchases	38,270	267,095
Net gains (losses)	(14,361)	2,722
Ending Balance	296,247	272,338
Change in net unrealized gains (losses) on assets still recognized at the reporting date	$ (14,361)	$ 2,722
Fair value, asset, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Fair value, asset, recurring basis, still held, unrealized gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Beginning balance	$ 276,169	$ 231,117
Issuances	140,083	135,600
Settlements	(127,906)	(157,325)
Net losses	(17,853)	66,777
Ending Balance	270,493	276,169
Change in net unrealized losses on liabilities still recognized at the reporting date	$ 13,789	$ 28,639
Fair value, liability, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Fair value, liability, recurring basis, still held, unrealized gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Cumulative dividends	$ 34,300	$ 23,100
TRA Liability
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	108,257	116,398
Issuances	0	0
Settlements	(14,556)	(8,551)
Net losses	13,092	410
Ending Balance	106,793	108,257
Change in net unrealized losses on liabilities still recognized at the reporting date	$ 13,092	$ 819
Fair value, liability, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Fair value, liability, recurring basis, still held, unrealized gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Warrant Liability
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 0	$ 22,600
Issuances		0
Settlements		(60,900)
Net losses		38,300
Ending Balance		0
Change in net unrealized losses on liabilities still recognized at the reporting date		$ 0
Fair value, liability, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration]		Nonoperating Income (Expense)
Fair value, liability, recurring basis, still held, unrealized gain (loss), statement of income or comprehensive income [Extensible Enumeration]		Nonoperating Income (Expense)
Earnout Liability
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	167,912	$ 92,119
Issuances	140,083	135,600
Settlements	(113,350)	(87,874)
Net losses	(30,945)	28,067
Ending Balance	163,700	167,912
Change in net unrealized losses on liabilities still recognized at the reporting date	$ 697	$ 27,820
Fair value, liability, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Fair value, liability, recurring basis, still held, unrealized gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Preferred Equity
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 267,169	$ 0
Purchases	34,284	263,395
Net gains (losses)	(10,859)	3,774
Ending Balance	290,594	267,169
Change in net unrealized gains (losses) on assets still recognized at the reporting date	$ (10,859)	$ 3,774
Fair value, asset, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Fair value, asset, recurring basis, still held, unrealized gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
CLOs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 5,169	$ 2,521
Purchases	3,986	3,700
Net gains (losses)	(3,502)	(1,052)
Ending Balance	5,653	5,169
Change in net unrealized gains (losses) on assets still recognized at the reporting date	$ (3,502)	$ (1,052)
Fair value, asset, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Fair value, asset, recurring basis, still held, unrealized gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Nonoperating Income (Expense)	Nonoperating Income (Expense)

BLUE OWL CAPITAL INC. 10-K