Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest income
Loans	$ 114,914	$ 124,476	$ 351,192	$ 377,788
Securities
Taxable	5,499	7,218	19,219	22,874
Tax-exempt	1,573	1,292	4,697	3,992
Other	92	1,490	1,098	4,778
Total interest income	122,078	134,476	376,206	409,432
Interest expense
Deposits	11,810	21,514	44,175	62,277
Borrowings	3,982	4,137	13,361	12,383
Total interest expense	15,792	25,651	57,536	74,660
Net interest income	106,286	108,825	318,670	334,772
Provision for credit losses on loans	23,100	1,700	76,350	4,100
Net interest income after provision for credit losses on loans	83,186	107,125	242,320	330,672
Noninterest income
Service charges on deposit accounts	7,486	8,992	23,388	26,699
Fees and commissions	3,402	3,090	9,427	16,608
Insurance commissions	2,681	2,508	6,797	6,814
Wealth management revenue	4,364	3,588	12,190	10,513
Mortgage banking income	49,714	15,710	110,739	42,731
Net gain on sales of securities	0	343	31	348
BOLI income	1,267	1,734	3,759	4,481
Other	2,014	1,988	6,337	7,604
Total noninterest income	70,928	37,953	172,668	115,798
Noninterest expense
Salaries and employee benefits	75,406	65,425	227,956	183,100
Data processing	5,259	4,980	15,312	14,584
Net occupancy and equipment	13,296	12,943	40,927	36,322
Other real estate owned	1,033	418	2,071	1,674
Professional fees	3,197	2,976	8,355	7,861
Advertising and public relations	2,240	3,318	8,560	8,833
Intangible amortization	1,733	1,996	5,462	6,159
Communications	2,319	2,310	6,698	6,553
Extinguishment of debt	28	54	118	54
Merger and conversion related expenses	0	24	0	203
Other	11,999	2,056	34,377	13,279
Noninterest expense	116,510	96,500	349,836	278,622
Income (loss) before income taxes	37,604	48,578	65,152	167,848
Income taxes	7,612	11,132	13,022	38,667
Net income (loss)	$ 29,992	$ 37,446	$ 52,130	$ 129,181
Basic earnings per share (usd per share)	$ 0.53	$ 0.65	$ 0.93	$ 2.21
Diluted earnings per share (usd per share)	0.53	0.64	0.92	2.21
Cash dividends per common share (usd per share)	$ 0.22	$ 0.22	$ 0.66	$ 0.65