Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Consolidated Statements of Comprehensive Income
Net income	$ 54,599	$ 42,742	$ 197,396	$ 119,090
Other comprehensive income, net of tax:
Net unrealized holding (losses) gains on securities available for sale arising during period (net of tax effects of $(2,015), $(2,366), $(2,689) and $7,993)	(7,578)	(8,901)	(10,115)	30,069
Reclassification adjustment for losses on securities available for sale included in net income (net of tax effects of $3, $0, $3 and $1)	9		13	4
Other comprehensive income, net of tax	(7,569)	(8,901)	(10,102)	30,073
Comprehensive income	$ 47,030	$ 33,841	$ 187,294	$ 149,163