CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 17,354	$ 29,006	$ 33,316	$ 30,836	$ 23,876	$ 37,226	$ 26,054	$ 22,355	$ 22,366	$ 30,938	$ 17,854	$ 13,211	$ 110,512	$ 109,511	$ 84,369
Other comprehensive income (loss):
Unrealized holding gains (losses) on securities arising during the period													(18,702)	(16,696)	13,866
Other comprehensive income (loss) before tax													(18,702)	(16,696)	13,866
Income tax benefit (expense) related to items of other comprehensive income													4,484	4,884	(4,055)
Other comprehensive income (loss)													(14,218)	(11,812)	9,811
Total comprehensive income													$ 96,294	$ 97,699	$ 94,180