v3.26.1
FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair Value of Financial Instruments That Are Not Carried at Fair Value on a Recurring Basis (Details) - Nonrecurring - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents $ 93,395 $ 111,581
Other Long Term Investments 239,018 228,507
Mortgage Loans 30,073 30,127
Total Assets Measured at Fair Value 362,486 370,215
Long Term Debt 138,985 142,319
Total 138,985 142,319
Limited Liability Company    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Long Term Investments 100,100 99,200
Lloyd's Syndicate Investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Long Term Investments 137,400 127,900
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 93,395 111,581
Other Long Term Investments 0 0
Mortgage Loans 0 0
Total Assets Measured at Fair Value 93,395 111,581
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 1,552 1,409
Mortgage Loans 0 0
Total Assets Measured at Fair Value 1,552 1,409
Long Term Debt 138,985 142,319
Total 138,985 142,319
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 30,073 30,127
Total Assets Measured at Fair Value 30,073 30,127
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 237,466 227,098
Mortgage Loans 0 0
Total Assets Measured at Fair Value 237,466 227,098
Long Term Debt 0 0
Total $ 0 $ 0