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Acquisitions | 12 Months Ended
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Dec. 31, 2015
Acquisitions [Abstract] |
Acquisitions | (2) Acquisitions Acquisition of Alliance Financial Corporation On March 8, 2013, the Company acquired Alliance Financial Corporation ("Alliance"), the parent company of Alliance Bank, N.A., for total consideration of $226 million. As part of the acquisition, Alliance was merged with and into the Company and Alliance Bank, with 26 branch locations in the central New York counties of Onondaga, Cortland, Madison, Oneida and Oswego, was merged with and into the Bank. The merger with Alliance enabled the Company to expand its footprint into demographically attractive and contiguous markets located in the aforementioned New York counties. Alliance operations were integrated into the Company and were included in the Consolidated Statements of Income from the date of acquisition. In 2015, the Company acquired Third Party Administrators, Inc. ("TPA"), a retirement plan administration company for total consideration of $4.1 million. As part of the acquisition, the Company recorded goodwill of approximately $2.3 million. Other Goodwill Adjustments During the twelve months ended December 31, 2014, the Company recorded deferred tax adjustments totaling approximately ($1.0) million and valuation adjustments totaling ($0.4) related to the 2013 acquisition of Alliance resulting in a decrease in goodwill of approximately ($1.4) million in 2014

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