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LONG-TERM SUBORDINATED NOTES - Narrative (Details)
6 Months Ended
May 17, 2017
Mar. 15, 2017
Jun. 30, 2023
Aug. 14, 2023
May 14, 2017
Subordinated Notes 6.60% | Long Term Subordinated Debt          
Debt Instrument [Line Items]          
Debt instrument, stated interest rate         6.60%
Interest basis, 3 month LIBOR plus number of basis points, reset quarterly 2.385%        
Right to defer interest on one or more occasions for up to number of consecutive years     10 years    
Percentage of principal amount required for redemption   100.00%      
Subordinated Notes 6.60% | Long Term Subordinated Debt | Forecast          
Debt Instrument [Line Items]          
Reset quarterly interest rate       7.71%  
Senior Notes 4.868% | Senior Notes          
Debt Instrument [Line Items]          
Debt instrument, stated interest rate     4.868%    
Senior Notes 3.50% | Senior Notes          
Debt Instrument [Line Items]          
Debt instrument, stated interest rate     3.50%    
Senior Notes 3.125% | Senior Notes          
Debt Instrument [Line Items]          
Debt instrument, stated interest rate     3.125%