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Loans and Leases (Narrative) (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Interest receivable | $ 91,000 | $ 107,700
Loans held for sale | 107,800 | 124,800
total remaining discount | 50,308 | 64,727
PCD Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Remaining discount | 35,806 | 45,254
Non-PCI Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums | 69,025 | 50,217
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Purchase Discount Remaining | 14,502 | 19,473
Non-PCI Loans | SBA-PPP |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums | (54,855) | 41,064
Non-PCI Loans | Other Portfolio |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums | $ (14,170) | $ 9,153

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