RESTRICTED CASH AND CASH EQUIVALENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2024
Restricted Cash and Cash Equivalent Item [Line Items]
Total restricted cash and cash equivalents	$ 511,983	$ 531,976
Cash and cash equivalents	70,982	111,756
Total cash, cash equivalents, and restricted cash	582,965	643,732	$ 655,233	$ 649,087
Cash securing trust accounts
Restricted Cash and Cash Equivalent Item [Line Items]
Total restricted cash and cash equivalents	159,427	204,129
Cash securing letters of credit issued
Restricted Cash and Cash Equivalent Item [Line Items]
Total restricted cash and cash equivalents	335,103	310,688
Cash securing debt facility
Restricted Cash and Cash Equivalent Item [Line Items]
Total restricted cash and cash equivalents	10,000	10,000
Other
Restricted Cash and Cash Equivalent Item [Line Items]
Total restricted cash and cash equivalents	$ 7,453	$ 7,159

Amount of cash and cash equivalent restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.