Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net Income	$ 14,810	$ 13,738	$ 43,241	$ 41,392
Other Comprehensive Income
Increase in Net Unrealized (Loss) Gain on Available-for-Sale Securities	(2,325)	684	13,803	8,671
Deferred Tax Provision (Benefit) Related to Unrealized Gains (Loss)	688	(203)	(4,080)	(2,564)
Reclassification Adjustment for Realized Gains on Available-for-Sale Securities Included in Net Income	0	(1)	(13)	(1)
Deferred Tax Related to Reclassification Adjustment	0	0	4	0
Total Other Comprehensive (Loss) Income	(1,637)	480	9,714	6,106
Comprehensive Income	$ 13,173	$ 14,218	$ 52,955	$ 47,498