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INVESTMENTS IN LIMITED PARTNERSHIPS (Details)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
item
Sep. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
item
INVESTMENTS IN LIMITED PARTNERSHIPS          
Number of investments in affordable housing partnerships | item     23   22
Investments in affordable housing partnerships carrying value, net     $ 101.2   $ 66.3
Federal affordable housing tax credits $ 108.9   108.9    
Expected amortization of investments in affordable housing partnerships 98.2   98.2    
Usage of federal affordable housing tax credits 2.8 $ 1.9 8.4 $ 5.7  
Actual amortization of investments in affordable housing partnerships $ 2.5 $ 1.7 $ 7.6 $ 5.2