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Loans and Leases (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Interest receivable | $ 111,800 |  | $ 111,800 |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | 8,190,000 |  | 8,190,000 |  | $ 6,570,000
Advances from Federal Home Loan Banks |  |  |  |  | 563,700
Federal Home Loan Bank Advances, Current Borrowing Capacity | 7,540,000 |  | 7,540,000 |  | 6,010,000
Federal Reserve Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | 3,210,000 |  | 3,210,000 |  | 2,980,000
Loans held for sale | 120,300 |  | 120,300 |  | 67,900
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums | 83,500 |  | 83,500 |  | 927
Loans and leases | 336,382 | $ 315,012 | 988,029 | $ 909,167 |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Purchase Discount Remaining | 23,000 |  | 23,000 |  | 30,900
SBA-PPP |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums | 76,000 |  | 76,000 |  |
PCD Loans |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Remaining discount | 49,200 |  | 49,200 |  | 88,200
Federal Home Loan Bank of Atlanta |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Loans Pledged as Collateral | 11,810,000 |  | 11,810,000 |  | 9,410,000
Advances from Federal Home Loan Banks | 652,700 |  | 652,700 |  |
Federal Reserve Bank |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |
Loans Pledged as Collateral | $ 3,970,000 |  | $ 3,970,000 |  | $ 3,680,000

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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