Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 13,579	$ 18,644	$ 24,252	$ 28,994
Unrealized gains (losses) on securities AFS:
Net unrealized holding gains (losses)	7,985	4,401	12,314	12,112
Net realized (gains) losses included in income	(164)	(19)	(164)	(32)
Income tax (expense) benefit	(2,112)	(1,183)	(3,280)	(3,262)
Total other comprehensive income (loss)	5,709	3,199	8,870	8,818
Comprehensive income	$ 19,288	$ 21,843	$ 33,122	$ 37,812