CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest income:
Interest and fees on loans	$ 104,384	$ 106,560	$ 319,563	$ 288,721
Interest on loans held for sale	379	398	1,465	1,094
Interest on deposits with banks	302	84	395	419
Interest and dividends on investment securities:
Taxable	3,958	4,488	12,230	17,270
Tax-advantaged	2,106	1,454	6,560	4,264
Interest on federal funds sold	0	0	0	1
Total interest income	111,129	112,984	340,213	311,769
Interest expense:
Interest on deposits	3,521	9,439	12,202	35,241
Interest on retail repurchase agreements and federal funds purchased	43	551	139	1,731
Interest on advances from FHLB	0	2,841	2,649	3,863
Interest on subordinated debt	961	2,669	5,973	7,602
Total interest expense	4,525	15,500	20,963	48,437
Net interest income	106,604	97,484	319,250	263,332
Provision/ (credit) for credit losses	(8,229)	7,003	(47,141)	90,158
Net interest income after provision/ (credit) for credit losses	114,833	90,481	366,391	173,174
Non-interest income:
Investment securities gains	49	51	178	432
Insurance agency commissions	2,285	2,122	5,685	5,439
Income from bank owned life insurance	818	708	2,203	2,162
Other income	3,025	1,418	12,309	5,276
Total non-interest income	24,394	29,390	79,519	70,482
Non-interest expense:
Salaries and employee benefits	38,653	36,041	114,295	98,391
Occupancy expense of premises	5,728	5,575	16,712	16,147
Equipment expense	3,214	3,133	9,456	9,103
Marketing	1,376	1,305	3,640	3,223
Outside data services	2,317	2,614	6,860	6,365
FDIC insurance	361	1,340	3,303	3,200
Amortization of intangible assets	1,635	1,968	4,991	4,566
Merger and acquisition expense	0	1,263	45	25,171
Professional fees and services	3,031	1,800	7,927	5,466
Other expenses	6,866	5,898	27,100	22,489
Total non-interest expense	63,181	60,937	194,329	194,121
Income before income tax expense	76,046	58,934	251,581	49,535
Income tax expense	19,070	14,292	61,878	9,244
Net income	$ 56,976	$ 44,642	$ 189,703	$ 40,291
Per share information:
Basic net income/ (loss) per common share (in dollars per share)	$ 1.21	$ 0.94	$ 4.00	$ 0.93
Diluted net income/ (loss) per share (in dollars per share)	1.20	0.94	3.98	0.93
Dividends declared per share (in dollars per share)	$ 0.32	$ 0.30	$ 0.96	$ 0.90
Service charges on deposit accounts
Non-interest income:
Fees and commissions, mortgage banking and servicing	$ 2,108	$ 1,673	$ 5,936	$ 5,149
Mortgage banking activities
Non-interest income:
Fees and commissions, mortgage banking and servicing	4,942	14,108	20,887	25,567
Wealth management income
Non-interest income:
Fees and commissions, mortgage banking and servicing	9,392	7,785	27,243	22,355
Bank card fees
Non-interest income:
Fees and commissions, mortgage banking and servicing	$ 1,775	$ 1,525	$ 5,078	$ 4,102