FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair Value of Financial Financial Instruments That Are Not Carried at Fair Value on a Recurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 111,581	$ 177,851
Other Long Term Investments	228,507	183,741
Mortgage Loans	30,127	38,879
Total	370,215	400,471
Long Term Debt	142,319	108,353
Total	142,319	108,353
Lloyd's Sndicate Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Long Term Investments	127,900
Limited liability partnerships
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Long Term Investments	99,200
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	111,581	177,851
Other Long Term Investments	0	0
Mortgage Loans	0	0
Total	111,581	177,851
Long Term Debt	0	0
Total	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Other Long Term Investments	1,409	1,277
Mortgage Loans	0	0
Total	1,409	1,277
Long Term Debt	142,319	108,353
Total	142,319	108,353
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Other Long Term Investments	0	0
Mortgage Loans	30,127	38,879
Total	30,127	38,879
Long Term Debt	0	0
Total	0	0
Net Asset Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Other Long Term Investments	227,098	182,464
Mortgage Loans	0	0
Total	227,098	182,464
Long Term Debt	0	0
Total	$ 0	$ 0