Securities - Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Loss realized in earnings	$ (458)	$ 0	$ (8)
Total reclassified amount before tax	(458)	0	(8)
Tax benefit	(124)	0	(3)
Total reclassifications out of accumulated other comprehensive loss	$ (334)	$ 0	$ (5)