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Loans Receivable and Allowance for Credit Losses (Loans Receivable Narrative) (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Nonaccrual loans |  |
Loans on nonaccrual status | $ 236,494 |
Foreclosed assets |  |
Foreclosed assets | 23,400 | $ 1,300
Residential real estate properties |  |
Foreclosed assets |  |
Recorded investment in consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings were in process | $ 3,500 | 7,200
PCI Loans |  |
Nonaccrual loans |  |
Loans on nonaccrual status |  | $ 297

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