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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Business Acquisition [Line Items]        
Goodwill impairment     $ 0 $ 44,877
Amortization expense $ 2,400 $ 2,600 $ 7,100 $ 7,900
Consumer Mortgage Reporting Unit | Operating Segments        
Business Acquisition [Line Items]        
Goodwill impairment   $ 44,900    
CDI        
Business Acquisition [Line Items]        
Useful life     10 years