Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest income:
Interest and fees on loans	$ 62,634	$ 60,402	$ 125,450	$ 119,773
Interest and dividends on investment securities:
Taxable	7,982	8,000	16,020	15,971
Exempt from federal taxes	858	1,040	1,737	2,099
Interest on deposits in banks	482	271	1,127	660
Interest on federal funds sold	3	5	5	7
Total interest income	71,959	69,718	144,339	138,510
Interest expense:
Interest on deposits	3,108	3,239	6,336	6,548
Interest on securities sold under repurchase agreements	92	53	182	107
Interest on long-term debt	451	538	900	1,052
Interest on subordinated debentures held by subsidiary trusts	675	600	1,338	1,190
Total interest expense	4,326	4,430	8,756	8,897
Net interest income	67,633	65,288	135,583	129,613
Provision for loan losses	2,550	1,340	6,550	2,435
Net interest income after provision for loan losses	65,083	63,948	129,033	127,178
Non-interest income:
Payment services revenues	8,648	8,437	16,639	15,809
Income from the origination and sale of loans	9,409	8,802	15,550	14,708
Investment Advisory, Management and Administrative Fees	5,166	4,897	9,741	9,834
Service charges on deposit accounts	4,626	4,053	9,089	7,997
Other service charges, commissions and fees	2,845	2,736	5,453	5,231
Investment securities gains, net	108	46	87	52
Other income	2,457	2,792	4,750	6,050
Non-recurring litigation recovery	3,750	0	3,750	0
Total non-interest income	37,009	31,763	65,059	59,681
Non-interest expense:
Salaries and wages	26,707	26,093	51,389	51,442
Employee benefits	8,066	8,063	17,675	15,979
Outsourced technology services	4,800	2,593	9,632	5,056
Occupancy, net	4,284	4,529	8,948	9,021
Furniture and equipment	2,460	3,703	4,716	7,496
OREO expense, net of income	140	(823)	101	(884)
Professional fees	1,136	1,514	2,444	2,815
FDIC insurance premiums	1,198	1,304	2,456	2,446
Mortgage servicing rights amortization	722	627	1,356	1,246
Mortgage servicing rights impairment recovery	(20)	(56)	(5)	(71)
Core deposit intangibles amortization	827	854	1,654	1,709
Other expenses	12,575	13,577	24,198	25,381
Non-core acquisition expenses	0	(7)	0	63
Total non-interest expense	62,895	61,971	124,564	121,699
Income before income tax expense	39,197	33,740	69,528	65,160
Income tax expense	13,643	11,518	23,850	21,958
Net income	$ 25,554	$ 22,222	$ 45,678	$ 43,202
Basic earnings per common share	$ 0.58	$ 0.49	$ 1.03	$ 0.95
Diluted earnings per common share	$ 0.57	$ 0.49	$ 1.02	$ 0.94