Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 10,673	$ 10,350
Unrealized gains (losses) on securities AFS:
Net unrealized holding gains (losses)	4,329	7,711
Net realized (gains) losses included in income	0	(13)
Income tax (expense) benefit	(1,168)	(2,079)
Total other comprehensive income (loss)	3,161	5,619
Comprehensive income	$ 13,834	$ 15,969