Condensed Consolidated Statements of Income - USD ($) shares in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Interest Income
Loans	$ 147,786,000	$ 144,804,000
Investment securities	20,238,000	16,006,000
Other short-term investments	2,203,000	1,680,000
Total interest income	170,227,000	162,490,000
Interest Expense
Deposits	17,117,000	16,602,000
Borrowed funds	5,841,000	3,551,000
Senior and subordinated debt	3,694,000	3,313,000
Total interest expense	26,652,000	23,466,000
Net interest income	143,575,000	139,024,000
Provision for loan losses	39,532,000	10,444,000
Net interest income after provision for loan losses	104,043,000	128,580,000
Noninterest Income
Wealth management fees	12,361,000	11,600,000
Service charges on deposit accounts	11,781,000	11,540,000
Capital market products income	4,722,000	1,279,000
Card-based fees	3,968,000	4,378,000
Mortgage banking income	1,788,000	1,004,000
Other service charges, commissions, and fees	2,682,000	2,611,000
Net securities losses	1,005,000	0
Other income	3,065,000	2,494,000
Total noninterest income	39,362,000	34,906,000
Noninterest Expense
Salaries and employee benefits	62,859,000	57,373,000
Net occupancy and equipment expense	14,227,000	13,797,000
Professional services	10,390,000	7,087,000
Technology and related costs	8,548,000	6,270,000
Net OREO expense	420,000	681,000
Other expenses	15,415,000	12,953,000
Acquisition and integration related expenses	5,472,000	3,691,000
Delivering Excellence implementation costs	0	258,000
Total noninterest expense	117,331,000	102,110,000
Income before income tax expense	26,074,000	61,376,000
Income tax expense	6,468,000	15,318,000
Net income	$ 19,606,000	$ 46,058,000
Per Common Share Data
Basic earnings per common share (in dollars per share)	$ 0.18	$ 0.43
Diluted earnings per common share (in dollars per share)	0.18	0.43
Dividends declared per common share (in dollars per share)	$ 0.14	$ 0.12
Weighted-average common shares outstanding (in Shares)	109,922	105,770
Weighted-average diluted common shares outstanding (in Shares)	110,365	105,770