SIGNIFICANT ACCOUNTING POLICIES - Other Asset Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Other asset investments	$ 126,349	$ 90,182
Funded investments | Other assets
Schedule of Equity Method Investments [Line Items]
Other asset investments	58,912	37,417
Unfunded investments | Other assets
Schedule of Equity Method Investments [Line Items]
Other asset investments	67,437	52,765
Unfunded investments | Other liabilities
Schedule of Equity Method Investments [Line Items]
Unfunded investment obligations	$ (67,437)	$ (52,765)