ASSET MANAGEMENT REVENUES - Schedule of Unearned Income and Fees (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Unearned income and fees	$ 37,468	$ 0
Subsidiaries
Disaggregation of Revenue [Line Items]
Unearned income and fees	37,468	0
Unearned management fees | Subsidiaries
Disaggregation of Revenue [Line Items]
Unearned income and fees	1	0
Unearned incentive income | Subsidiaries
Disaggregation of Revenue [Line Items]
Unearned income and fees	$ 37,467	$ 0