Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
INTEREST INCOME
Interest and fees on loans and leases	$ 212,998	$ 210,290	$ 418,994	$ 428,218
Interest and dividends on investment securities:
Taxable	15,220	11,963	29,151	25,018
Exempt from federal income tax	2,237	2,183	4,479	4,418
Dividends	360	365	748	731
Interest on temporary investments and interest bearing deposits	324	652	1,881	1,132
Total interest income	231,139	225,453	455,253	459,517
INTEREST EXPENSE
Interest on deposits	10,641	8,540	20,289	16,953
Interest on securities sold under agreement to repurchase and federal funds purchased	321	32	351	68
Interest on term debt	3,662	3,848	7,172	8,034
Interest on junior subordinated debentures	4,437	3,835	8,638	7,562
Total interest expense	19,061	16,255	36,450	32,617
Net interest income	212,078	209,198	418,803	426,900
PROVISION FOR LOAN AND LEASE LOSSES	10,657	10,589	22,329	15,412
Net interest income after provision for loan and lease losses	201,421	198,609	396,474	411,488
NON-INTEREST INCOME
Service charges on deposits	15,478	15,667	30,207	30,183
Brokerage revenue	3,903	4,580	8,025	8,674
Residential mortgage banking revenue, net	33,894	36,783	60,728	52,209
Gain on investment securities, net	35	162	33	858
Gain on loan sales, net	3,310	5,640	5,064	8,011
Loss on junior subordinated debentures carried at fair value	(1,572)	(1,572)	(3,127)	(3,144)
BOLI income	2,089	2,152	4,158	4,291
Other income	13,982	11,247	26,256	19,528
Total non-interest income	71,119	74,659	131,344	120,610
NON-INTEREST EXPENSE
Salaries and employee benefits	108,561	107,545	215,034	214,083
Occupancy and equipment, net	36,955	37,850	75,628	76,145
Communications	4,859	5,296	9,963	10,859
Marketing	2,374	3,004	4,107	5,854
Services	11,386	11,529	22,691	22,200
FDIC assessments	4,447	3,693	8,534	7,414
Gain on other real estate owned, net	(457)	(1,457)	(375)	(68)
Intangible amortization	1,689	2,328	3,378	4,888
Merger related expenses	1,640	6,634	2,660	10,084
Goodwill impairment	0	0	0	142
Other expenses	12,567	12,089	25,115	20,899
Total non-interest expense	184,021	188,511	366,735	372,500
Income before provision for income taxes	88,519	84,757	161,083	159,598
Provision for income taxes	31,707	30,470	58,268	57,742
Net income	56,812	54,287	102,815	101,856
Dividends and undistributed earnings allocated to participating securities	14	32	26	61
Net earnings available to common shareholders	$ 56,798	$ 54,255	$ 102,789	$ 101,795
Earnings per common share:
Basic (in usd per share)	$ 0.26	$ 0.25	$ 0.47	$ 0.46
Diluted (in usd per share)	$ 0.26	$ 0.25	$ 0.47	$ 0.46
Weighted average number of common shares outstanding:
Basic (in shares)	220,310	220,421	220,298	220,324
Diluted (in shares)	220,753	220,907	220,790	221,001