Securities Securities - Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Gain (loss) realized in earnings	$ 98	$ 0	$ 139	$ (458)
Total reclassified amount before tax	98	0	139	(458)
Tax expense (benefit)	26	0	38	(124)
Total reclassifications out of accumulated other comprehensive loss	$ 72	$ 0	$ 101	$ (334)