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GUARANTEES (Narrative) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Guarantor Obligations [Line Items]          
Acquired standby letters of credit and financial guarantees $ 25,700   $ 25,700   $ 25,200
Repurchased loans not subject to credit recourse provision 5,000 $ 8,800 20,300 $ 31,400  
Gain (loss) from early extinguishment of debt 0 0 42 0  
Amount of serviced loans 5,800,000   5,800,000   5,700,000
Funds advanced to investors under servicing agreements 10,400   10,400   12,900
Recourse          
Guarantor Obligations [Line Items]          
Unpaid principal balance of residential subject loans subject to credit recourse 113,444   113,444   121,778
Repurchased GNMA 119 517 1,500 2,400  
Liability for estimated credit losses to loans sold with credit recourse 168   168   294
Gain (loss) from early extinguishment of debt 6 (85) 127 (153)  
Nonrecourse          
Guarantor Obligations [Line Items]          
Gain (loss) from early extinguishment of debt (210) $ (728) (261) $ (3,500)  
Loan serviced under representation warranties | Nonrecourse          
Guarantor Obligations [Line Items]          
Unpaid principal balance of residential subject loans subject to credit recourse $ 1,600   $ 1,600   $ 3,400