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Derivative Instruments and Hedging Activities - Schedule of Gross Amounts of Derivative Assets and Derivative Liabilities (Details) - Not Designated as Hedging Instruments - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Other Assets |  |  |
Derivative Asset [Abstract] |  |  |
Gross amounts recognized |  | $ 7,132 | $ 8,590
Gross amounts offset |  | (1,753) | (1,630)
Net amounts presented in the Consolidated Balance Sheets |  | 5,379 | 6,960
Net Amount |  | 5,379 | 6,960
Derivative Liability [Abstract] |  |  |
Gross amounts not offset | [1] | 0 | 0
Other Liabilities |  |  |
Derivative Liability [Abstract] |  |  |
Gross amounts recognized |  | 7,105 | 8,588
Gross amounts offset |  | (1,753) | (1,630)
Net amounts presented in the Consolidated Balance Sheets |  | 5,352 | 6,958
Gross amounts not offset | [1] | (2,454) | (14,340)
Net Amount |  | $ 2,898 | $ (7,382)
[1] | Amounts represent posted collateral.

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- Definition The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624258-113959 + Details
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