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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Narrative Disclosures) (Details) loans in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) loans | Sep. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Financing Receivable, Recorded Investment |  |  |  |  |
Financing Receivable, Modifications, Number of Contracts |  | 0 |  | 0 |
SBA loans in the participation sold portfolio, considered impaired | $ 11,900,000 |  | $ 11,900,000 |  | $ 5,500,000
Guaranteed Portion of SBA Loans Sold to Third Parties Total | 6,300,000 | $ 3,300,000 | 15,500,000 | $ 36,400,000 |
Total amount of outstanding SBA loans sold | 103,300,000 |  | 103,300,000 |  | 105,100,000
Loans and leases transferred to third parties total principal amount | 9,000,000 | 7,900,000 | 17,000,000 | 17,700,000 |
Gain (Loss) Recognized on Participation Interest in Originated Loans |  |  | 0 | 0 |
Total amount of outstanding loans transferred to third parties as loan participations | 91,700,000 |  | 91,700,000 |  | 102,700,000
Total amount of loan participations remaining on the Corporations balance sheet | 146,200,000 |  | 146,200,000 |  | 106,100,000
Loans in the participation sold portfolio, considered impaired | 0 |  | 0 |  | 0
Loan participations purchased on the Corporation's balance sheet | 669,000 |  | 669,000 |  | 1,200,000
Residential Real Estate Loans Sold, Principal Amount | 0 | $ 8,000,000 | 1,600,000 | $ 15,200,000 |
Total gross loans and leases receivable | 1,468,067,000 |  | 1,468,067,000 |  | 1,451,864,000
Non-accrual troubled debt restructurings | 10,900,000 |  | 10,900,000 |  | 12,800,000
Unfunded commitments, troubled debt restructurings | 0 |  | $ 0 |  |
Troubled debt restructurings, subsequent default, number of loans | loans |  |  | 0 |  |
Loans and leases receivable, difference between recorded investment and unpaid principal balance | 4,500,000 |  | $ 4,500,000 |  | 3,400,000
Performing troubled debt restructurings | 275,000 |  | 275,000 |  | 717,000
Substandard |  |  |  |  |
Financing Receivable, Recorded Investment |  |  |  |  |
Total gross loans and leases receivable | 36,700,000 |  | 36,700,000 |  | 34,300,000
Special Mention |  |  |  |  |
Financing Receivable, Recorded Investment |  |  |  |  |
Total gross loans and leases receivable | 0 |  | 0 |  | 0
Doubtful |  |  |  |  |
Financing Receivable, Recorded Investment |  |  |  |  |
Total gross loans and leases receivable | 5,055,000 |  | 5,055,000 |  | 0
Loss |  |  |  |  |
Financing Receivable, Recorded Investment |  |  |  |  |
Total gross loans and leases receivable | 0 |  | $ 0 |  | 0
Consumer and other: |  |  |  |  |
Financing Receivable, Recorded Investment |  |  |  |  |
Financing Receivable, Modifications, Number of Contracts |  |  | 1 |  |
Financing Receivable, Modifications, Post-Modification Recorded Investment |  |  | $ 17,000 |  |
Total gross loans and leases receivable | $ 25,223,000 |  | $ 25,223,000 |  | 24,741,000
Commercial and industrial |  |  |  |  |
Financing Receivable, Recorded Investment |  |  |  |  |
Financing Receivable, Modifications, Number of Contracts | 2 |  | 4 |  |
Financing Receivable, Modifications, Post-Modification Recorded Investment | $ 800,000 |  | $ 4,400,000 |  |
Total gross loans and leases receivable | $ 447,223,000 |  | $ 447,223,000 |  | $ 450,298,000

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