CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net Income	$ 31,410	$ 25,080	$ 65,129	$ 25,789
Available-for-sale securities:
Unrealized gains (losses) on available-for-sale securities, net of tax expense of $0.2 million and tax benefit of $3.0 million for the three and six months ended June 30, 2021, respectively, and tax expense of $3.6 million for each of the three and six months ended June 30, 2020	296	14,004	(10,555)	14,134
Amortization of unrealized gains and losses on securities transferred to held-to-maturity, net of tax expense of $5 thousand and $11 thousand for the three and six months ended June 30, 2021, respectively, and tax expense of $12 thousand and $25 thousand for the three and six months ended June 30, 2020, respectively	20	47	44	94
Reclassification adjustment for losses (gains) included in net income, net of tax benefit of $19 thousand for each of the three and six months ended June 30, 2021, and tax expense of $0.3 million for each of the three and six months ended June 30, 2020	91	(1,516)	91	(1,399)
Available-for-sale securities, net of tax	407	12,535	(10,420)	12,829
Unrealized losses on derivatives designated as cash flow hedges, net of reclassifications to income, net of tax benefit of $4 thousand and $51 thousand for the three and six months ended June 30, 2021, respectively	(11)	0	(149)	0
Total other comprehensive income (loss)	396	12,535	(10,569)	12,829
Comprehensive Income	$ 31,806	$ 37,615	$ 54,560	$ 38,618