SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Insurance
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 501,496	$ 501,496
Definite lived intangible assets, useful life	15 years
Minimum
Finite-Lived Intangible Assets [Line Items]
Definite lived intangible assets, useful life	15 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Definite lived intangible assets, useful life	19 years