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Acquisitions and Divestiture (Schedule of Merger-Related Expense) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
FNBC Transactions [Member] |  |
Business Acquisition [Line Items] |  |
Personnel expense | $ 1,257 |
Net occupancy and equipment expense | 309 |
Professional services expense | 2,827 |
Data processing expense | 1,583 |
Advertising expense | 52 |
Other expense | 159 |
Total merger-related expenses | $ 6,187 |
Trust And Asset Management Acquisition [Member] |  |
Business Acquisition [Line Items] |  |
Personnel expense |  | $ 3,662
Net occupancy and equipment expense |  | 777
Professional services expense |  | 9,681
Data processing expense |  | 974
Other real estate |  | (1,511)
Advertising expense |  | 1,389
Other expense |  | 4,398
Total merger-related expenses |  | $ 19,370

X
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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