Other Comprehensive Income (Loss) (Classifications out of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Expense	$ (2,809)			$ (2,796)			$ (8,568)	$ (7,606)
NET INCOME	13,064	$ 15,271	$ 15,067	12,639	$ 11,097	$ 11,813	43,402	35,549
Total Reclassifications	247			71			777	342
Unrealized Gains and Losses on Available-for-Sale Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total Reclassifications	247			71			777	342
Amount Reclassified From Accumulated Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total Reclassifications	247			71			777	342
Amount Reclassified From Accumulated Other Comprehensive Income (Loss) | Unrealized Gains and Losses on Available-for-Sale Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Gains on Securities	313			90			984	434
Income Tax Expense	(66)			(19)			(207)	(92)
NET INCOME	$ 247			$ 71			$ 777	$ 342