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Goodwill And Intangible Assets (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite Lived Intangible Assets [Line Items]      
Core deposit, customer relationship and other intangibles $ 45,896,000 $ 56,965,000  
Goodwill 86,069,000 86,069,000  
Goodwill change 0 0 $ 0
Amortization of Intangible Assets 11,069,000 1,170,000 $ 1,319,000
Goodwill Impairment Loss 0 0  
Banking Segment [Member]      
Finite Lived Intangible Assets [Line Items]      
Goodwill 84,100,000 84,100,000  
Wealth Management [Member]      
Finite Lived Intangible Assets [Line Items]      
Goodwill 2,000,000.0 2,000,000.0  
Scotiabank PR & USVI Acquisition [Member]      
Finite Lived Intangible Assets [Line Items]      
Core deposit, customer relationship and other intangibles   41,500,000  
Core Deposits [Member]      
Finite Lived Intangible Assets [Line Items]      
Core deposit, customer relationship and other intangibles 35,000,000.0 43,200,000  
Customer Relationships Intangible [Member]      
Finite Lived Intangible Assets [Line Items]      
Core deposit, customer relationship and other intangibles 10,600,000 13,200,000  
Customer Relationships Intangible [Member] | Scotiabank PR & USVI Acquisition [Member]      
Finite Lived Intangible Assets [Line Items]      
Core deposit, customer relationship and other intangibles   12,700,000  
Other Intangible Assets [Member] | Scotiabank PR & USVI Acquisition [Member]      
Finite Lived Intangible Assets [Line Items]      
Core deposit, customer relationship and other intangibles $ 284,000 $ 567,000