NON-CONSOLIDATED VARIABLE INTEREST ENTITIES (VIEs) AND SERVICING ASSETS (Tables)	12 Months Ended
	Dec. 31, 2024
NON-CONSOLIDATED VARIABLE INTEREST ENTITIES (VIEs) AND SERVICING ASSETS [Abstract]
Changes in Servicing Assets [Table Text Block]	Year Ended December 31, 2024 2023 2022 (In thousands) Balance at beginning of year $ 26,941 $ 29,037 30,986 Capitalization of servicing assets 2,342 2,240 3,122 Amortization (4,175) (4,322) (4,978) Temporary impairment (charges) recoveries (44) 12 66 Other (1) (45) (26) (159) Balance at end of year $ 25,019 $ 26,941 29,037 (1) Mainly represents adjustments related to the repurchase of loans serviced for others.
Changes in Impairment Allowance [Table Text Block]	Year Ended December 31, 2024 2023 2022 (In thousands) Balance at beginning of year $ - $ 12 $ 78 Temporary impairment charges (recoveries) 44 (12) (66) Balance at end of year $ 44 $ - $ 12
Components of Net Servicing Income [Table Text Block]	Year Ended December 31, 2024 2023 2022 (In thousands) Servicing fees $ 10,315 $ 10,595 $ 11,096 Late charges and prepayment penalties 710 708 823 Other (1) (45) (26) (159) Servicing income, gross 10,980 11,277 11,760 Amortization and impairment of servicing assets (4,219) (4,310) (4,912) Servicing income, net $ 6,761 $ 6,967 $ 6,848 (1) Mainly represents adjustments related to the repurchase of loans serviced for others.
Key Economic Assumptions Used in Determining Fair Value at Time of Sale of Loans [Table Text Block]	Weighted Average Maximum Minimum Year Ended December 31, 2024 Constant prepayment rate: Government-guaranteed mortgage loans 6.7 % 17.1 % 3.0 % Conventional conforming mortgage loans 6.8 % 20.6 % 2.1 % Conventional non-conforming mortgage loans 6.2 % 8.0 % 2.8 % Discount rate: Government-guaranteed mortgage loans 11.5 % 11.5 % 11.5 % Conventional conforming mortgage loans 9.5 % 9.5 % 9.5 % Conventional non-conforming mortgage loans 11.4 % 12.5 % 11.0 % Year Ended December 31, 2023 Constant prepayment rate: Government-guaranteed mortgage loans 6.6 % 18.0 % 3.8 % Conventional conforming mortgage loans 7.3 % 16.9 % 2.4 % Conventional non-conforming mortgage loans 6.0 % 9.0 % 2.1 % Discount rate: Government-guaranteed mortgage loans 11.5 % 11.5 % 11.5 % Conventional conforming mortgage loans 9.5 % 10.0 % 9.5 % Conventional non-conforming mortgage loans 12.6 % 14.0 % 11.0 % Year Ended December 31, 2022 Constant prepayment rate: Government-guaranteed mortgage loans 6.7 % 18.3 % 4.8 % Conventional conforming mortgage loans 7.4 % 18.4 % 3.4 % Conventional non-conforming mortgage loans 6.0 % 21.9 % 3.6 % Discount rate: Government-guaranteed mortgage loans 11.7 % 12.0 % 11.5 % Conventional conforming mortgage loans 9.7 % 10.0 % 9.5 % Conventional non-conforming mortgage loans 12.5 % 14.5 % 11.5 %
Weighted-Averages of Key Economic Assumptions in Valuation Model [Table Text Block]	The weighted averages of the key economic assumptions that the Corporation used in its valuation model and the sensitivity of the current fair value to immediate 10 % and 20 % adverse changes in those assumptions for mortgage loans were as follows as of the indicated dates: December 31, 2024 December 31, 2023 (In thousands) Carrying amount of servicing assets $ 25,019 $ 26,941 Fair value $ 43,046 $ 45,244 Weighted-average expected life (in years) 7.63 7.79 Constant prepayment rate (weighted-average annual rate) 6.34 % 6.27 % Decrease in fair value due to 10% adverse change $ 858 $ 886 Decrease in fair value due to 20% adverse change $ 1,675 $ 1,731 Discount rate (weighted-average annual rate) 10.72 % 10.68 % Decrease in fair value due to 10% adverse change $ 1,815 $ 1,927 Decrease in fair value due to 20% adverse change $ 3,495 $ 3,712