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Derivative Instruments (Details 1) - Derivatives not designated as hedging instruments: - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Gains (losses) on derivatives financial instruments included in the Consolidated Statements of Income |  |  |
Gains (losses) on derivative financial instruments | $ 4,566 | $ (247) | $ 3,523
Included in interest income on loans | Interest rate contracts |  |  |
Gains (losses) on derivatives financial instruments included in the Consolidated Statements of Income |  |  |
Gains (losses) on derivative financial instruments | 2,402 | 2,200 | 2,961
Included in mortgage banking income | Interest rate lock commitments |  |  |
Gains (losses) on derivatives financial instruments included in the Consolidated Statements of Income |  |  |
Gains (losses) on derivative financial instruments | (2,111) | (530) | 1,171
Included in mortgage banking income | Forward commitments |  |  |
Gains (losses) on derivatives financial instruments included in the Consolidated Statements of Income |  |  |
Gains (losses) on derivative financial instruments | $ 4,275 | $ (1,917) | $ (609)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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