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Supplemental Comprehensive Income Disclosures (Details 2) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Beginning Balance |  |  | $ (7,027) | $ (2,386)
Other comprehensive income (loss) before reclassification adjustment | $ 1,099 | $ (489) | 3,858 | 8,528
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax | (32) | (686) | (410) | 675
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax |  |  | 3,448 | 9,203
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | (392) | (55)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax | (13) | 10 | (60) | 37
Total other comprehensive (loss) income | 1,020 | (1,185) | 3,056 | 9,148
Accumulated Other Comprehensive Income (Loss), Ending Balance | (3,971) | 6,762 | (3,971) | 6,762
Accumulated Net Unrealized Investment Gain (Loss) [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Beginning Balance |  |  | (7,455) | (2,956)
Other comprehensive income (loss) before reclassification adjustment |  |  | 3,858 | 8,528
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | (452) | (18)
Total other comprehensive (loss) income |  |  | 3,406 | 8,510
Accumulated Other Comprehensive Income (Loss), Ending Balance | (4,049) | 5,554 | (4,049) | 5,554
Accumulated Defined Benefit Plans Adjustment [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Beginning Balance |  |  | 225 | 10
Other comprehensive income (loss) before reclassification adjustment |  |  | 0 | 0
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | 0 | 0
Total other comprehensive (loss) income |  |  | 0 | 0
Accumulated Other Comprehensive Income (Loss), Ending Balance | 225 | 10 | 225 | 10
Derivative [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Beginning Balance |  |  | 203 | 560
Total other comprehensive (loss) income |  |  | (350) | 638
Accumulated Other Comprehensive Income (Loss), Ending Balance | $ (147) | $ 1,198 | (147) | 1,198
Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Total other comprehensive (loss) income |  |  | $ 3,056 | $ 9,148

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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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