Consolidated Statements of Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
INTEREST INCOME
Loans		$ 140,004	$ 161,838	$ 291,030		$ 319,099
Securities:
Taxable interest		25,870	26,700	53,082		52,091
Tax-exempt interest		24,612	21,988	49,016		42,685
Total securities income		50,482	48,688	102,098		94,776
Federal funds and resell agreements		1,573	2,526	7,025		6,151
Interest-bearing due from banks		398	2,768	3,061		6,667
Trading securities		312	842	966		1,276
Total interest income		192,769	216,662	404,180		427,969
INTEREST EXPENSE
Deposits		11,243	39,516	40,975		77,350
Federal funds and repurchase agreements		1,950	9,347	8,331		17,611
Other		1,347	1,385	2,704		2,726
Total interest expense		14,540	50,248	52,010		97,687
Net interest income		178,229	166,414	352,170		330,282
Provision for credit losses	[1]	21,500	11,000	109,500	[2]	23,350	[2]
Net interest income after provision for credit losses		156,729	155,414	242,670		306,932
NONINTEREST INCOME
Trust and securities processing		46,321	42,903	93,321		84,860
Trading and investment banking		12,851	5,453	14,574		11,034
Service charges on deposit accounts		19,074	20,747	44,155		42,028
Insurance fees and commissions		533	465	792		803
Brokerage fees		5,753	7,077	15,613		14,320
Bankcard fees		12,916	16,439	29,461		33,506
Gains (losses) on sales of securities available for sale, net		4,006	(1,403)	5,233		(594)
Other		19,002	13,717	15,731		26,823
Total noninterest income		120,456	105,398	218,880		212,780
NONINTEREST EXPENSE
Salaries and employee benefits		130,938	114,454	241,998		230,486
Occupancy, net		11,411	11,539	23,591		23,282
Equipment		21,502	18,824	42,743		38,508
Supplies and services		3,785	4,285	7,970		8,158
Marketing and business development		3,284	7,304	7,924		12,217
Processing fees		13,603	13,096	26,993		25,228
Legal and consulting		6,220	7,496	12,330		13,129
Bankcard		4,549	4,701	9,409		9,046
Amortization of other intangible assets		1,658	1,251	3,392		2,578
Regulatory fees		3,211	2,910	5,577		5,800
Other		8,372	7,527	15,225		15,581
Total noninterest expense		208,533	193,387	397,152		384,013
Income before income taxes		68,652	67,425	64,398		135,699
Income tax expense		8,123	10,466	7,308		20,996
NET INCOME		$ 60,529	$ 56,959	$ 57,090		$ 114,703
PER SHARE DATA
Net income – basic		$ 1.26	$ 1.17	$ 1.18		$ 2.35
Net income – diluted		1.26	1.16	1.18		2.34
Dividends		$ 0.31	$ 0.30	$ 0.62		$ 0.60
Weighted average shares outstanding – basic		47,991,283	48,777,732	48,340,579		48,745,124
Weighted average shares outstanding – diluted		48,077,810	49,039,692	48,491,526		49,018,787

[1] For the three and six months ended June 30, 2019, this line represents the Provision for loan losses. See further discussion of this change in Note 3, “New Accounting Pronouncements.

[2] For the six months ended June 30, 2019, this line represents the Provision for loan losses. See further discussion of this change in Note 3, “New Accounting Pronouncements.