Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest and Dividend Income
Loans, including fees	$ 216,888	$ 167,784	$ 565,130	$ 497,344
Mortgage loans held for sale, including fees	1,209	1,774	3,429	5,025
Investment securities:
Taxable interest	24,067	12,042	62,177	38,584
Tax-exempt interest	2,179	1,773	6,303	5,107
Amortization of FDIC loss share receivable	0	(3,935)	0	(12,484)
Other	2,629	1,066	7,041	2,558
Total interest and dividend income	246,972	180,504	644,080	536,134
Deposits:
NOW and MMDA	15,633	7,840	38,940	22,508
Savings	401	299	1,050	818
Time deposits	5,766	4,592	14,980	13,255
Short-term borrowings	4,152	753	4,655	1,900
Long-term debt	4,137	3,603	11,111	10,080
Total interest expense	30,089	17,087	70,736	48,561
Net interest income	216,883	163,417	573,344	487,573
Provision for loan losses	18,514	12,484	36,718	39,255
Net interest income after provision for loan losses	198,369	150,933	536,626	448,318
Non-interest Income
Mortgage income	16,050	21,807	49,895	67,738
Service charges on deposit accounts	12,534	11,066	35,097	32,957
Title revenue	5,643	6,001	16,574	16,881
Broker commissions	2,269	3,797	7,751	11,332
ATM/debit card fee income	3,658	3,483	11,043	10,636
Credit card and merchant-related income	3,724	3,501	10,470	8,888
Income from bank owned life insurance	1,263	1,305	3,815	3,918
Gain (loss) on sale of available for sale securities	(242)	12	(183)	1,997
Other non-interest income	8,168	8,849	21,917	26,236
Total non-interest income	53,067	59,821	156,379	180,583
Non-interest Expense
Salaries and employee benefits	106,970	85,028	275,140	250,875
Net occupancy and equipment	19,139	16,526	51,452	50,246
Communication and delivery	3,533	3,041	9,534	9,381
Marketing and business development	3,706	3,200	10,368	9,844
Data processing	12,899	6,076	27,146	18,095
Professional services	22,550	5,553	39,104	14,272
Credit and other loan related expense	7,532	1,928	15,838	7,530
Insurance	6,264	4,853	15,279	13,486
Travel and entertainment	2,601	1,915	7,837	6,236
Other non-interest expense	17,792	10,019	39,814	35,130
Total non-interest expense	202,986	138,139	491,512	415,095
Income before income tax expense	48,450	72,615	201,493	213,806
Income tax expense	18,806	24,547	69,358	72,159
Net Income	29,644	48,068	132,135	141,647
Less: Preferred stock dividends	3,598	3,590	8,146	7,020
Net Income Available to Common Shareholders	26,046	44,478	123,989	134,627
Less: Earnings allocated to unvested restricted stock	283	462	1,052	1,464
Earnings allocated to common shareholders	$ 25,763	$ 44,016	$ 122,937	$ 133,163
Earnings per common share - Basic (in usd per share)	$ 0.49	$ 1.08	$ 2.47	$ 3.27
Earnings per common share - Diluted (in usd per share)	0.49	1.08	2.45	3.26
Cash dividends declared per common share (in usd per share)	$ 0.37	$ 0.36	$ 1.09	$ 1.04
Comprehensive Income
Net income	$ 29,644	$ 48,068	$ 132,135	$ 141,647
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during the period (net of tax effects of $472, $3,410, $7,430, and $15,605, respectively)	877	(6,334)	13,799	28,980
Less: Reclassification adjustment for gains (losses) included in net income (net of tax effects of $85, $4, $64, and $699, respectively)	(157)	8	(119)	1,298
Unrealized gains (losses) on securities, net of tax	1,034	(6,342)	13,918	27,682
Fair value of derivative instruments designated as cash flow hedges:
Change in fair value of derivative instruments designated as cash flow hedges during the period (net of tax effects of $24, $78, $314, and $3,397, respectively)	(158)	146	(1,081)	(6,309)
Less: Reclassification adjustment for gains (losses) included in net income (net of tax effects of $55, $0, $134, and $0, respectively)	(101)	0	(249)	0
Fair value of derivative instruments designated as cash flow hedges, net of tax	(57)	146	(832)	(6,309)
Other comprehensive income (loss), net of tax	977	(6,196)	13,086	21,373
Comprehensive income	$ 30,621	$ 41,872	$ 145,221	$ 163,020