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FAIR VALUE MEASUREMENTS - Summarizes Carrying Value and Estimated Fair Values of Financial Instruments not Carried at Fair Value (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Nov. 23, 2021
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]      
Carrying Value $ 102,573 $ 104,044  
Estimated Fair Value $ 101,567 102,736  
Surplus note      
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]      
Carrying Value   4,044  
Unsecured Debt | 5.625% Senior Unsecured      
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]      
Stated percentage 5.625%   5.625%
Carrying Value $ 100,000 100,000  
Surplus note | Surplus note      
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]      
Carrying Value 2,573 4,044  
Estimated Fair Value 2,481 3,783  
5.625% Senior Unsecured      
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]      
Carrying Value 100,000 100,000  
Estimated Fair Value $ 99,086 $ 98,953