Securities Securities - Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Loss realized in earnings	$ 0	$ 0	$ (458,000)	$ 0
Total reclassified amount before tax	0	$ 0	(458,000)	$ 0
Tax benefit	0		(124,000)
Total reclassifications out of accumulated other comprehensive loss	$ 0		$ (334,000)

Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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