Securities (Other-Than-Temporary Impairments) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Recorded as part of gross realized losses:
Credit related OTTI	$ 0	$ 0	$ 0
Intent to sell OTTI	0	0	0
Total debt security OTTI write-downs included in earnings	0	0	0
Recorded directly to AOCI for non-credit related impairment:
Reclassification of non-credit related impairment	0	0	0
Reduction of non-credit related impairment related to security sales	0	0	(120)
Accretion of non-credit related impairment	0	0	(7)
Total changes to AOCI for non-credit related impairment	0	0	(127)
Total OTTI losses (accretion) recorded on debt securities	$ 0	$ 0	$ (127)

Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Credit Related

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- Definition

Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Intent to Sell

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No definition available.

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Other than Temporary Impairment Losses, Investments, Noncredit Portion, Portion in Other Comprehensive Income (Loss)

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Other than Temporary Impairment Losses, Investments, Reduction in Noncredit Portion Impairment from Security Sales

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The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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Amount, before tax, of accretion of other-than-temporary impairment (OTTI) related to factors other than credit loss on investment in debt security measured at amortized cost (held-to-maturity).

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The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

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Amount, before tax, of reclassification adjustment from accumulated other comprehensive income for other than temporary impairment (OTTI) realized in earnings for investment in held-to-maturity security.

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