Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest and Dividend Income
Loans, including fees	$ 163,991	$ 130,191
Mortgage loans held for sale, including fees	1,401	1,515
Investment securities:
Taxable interest	13,548	10,792
Tax-exempt interest	1,664	1,305
Amortization of FDIC loss share receivable	(4,386)	(6,013)
Other	718	795
Total interest and dividend income	176,936	138,585
Deposits:
NOW and MMDA	7,358	4,842
Savings	222	85
Time deposits	4,354	4,411
Short-term borrowings	485	363
Long-term debt	3,114	3,080
Total interest expense	15,533	12,781
Net interest income	161,403	125,804
Provision for loan losses	14,905	5,345
Net interest income after provision for loan losses	146,498	120,459
Non-interest Income
Mortgage income	20,347	18,023
Service charges on deposit accounts	10,951	9,262
Title revenue	4,745	4,629
ATM/debit card fee income	3,503	3,275
Income from bank owned life insurance	1,202	1,092
Gain on sale of available for sale securities	196	386
Broker commissions	3,823	4,162
Other non-interest income	11,078	8,070
Total non-interest income	55,845	48,899
Non-interest Expense
Salaries and employee benefits	80,742	72,696
Net occupancy and equipment	16,907	16,260
Communication and delivery	3,059	3,166
Marketing and business development	3,502	3,556
Data processing	5,918	9,761
Professional services	3,780	6,866
Credit and other loan related expense	2,671	4,183
Insurance	4,184	3,550
Travel and entertainment	2,383	2,515
Other non-interest expense	14,306	10,600
Total non-interest expense	137,452	133,153
Income before income tax expense	64,891	36,205
Income tax expense	22,122	11,079
Net Income	42,769	25,126
Preferred stock dividends	2,576	0
Income Available to Common Shareholders - Basic	40,193	25,126
Earnings Allocated to Unvested Restricted Stock	(460)	(324)
Earnings Allocated to Common Shareholders - Basic	$ 39,733	$ 24,802
Earnings per common share - Basic (in usd per share)	$ 0.98	$ 0.75
Earnings per common share - Diluted (in usd per share)	0.97	0.75
Cash dividends declared per share (in usd per share)	$ 0.34	$ 0.34
Comprehensive Income
Net Income	$ 42,769	$ 25,126
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during the period (net of tax effects of $13,702 and $5,408, respectively)	25,447	10,043
Reclassification adjustment for gains included in net income (net of tax effects of $69 and $135, respectively)	(127)	(251)
Unrealized gains (losses) on securities, net of tax	25,320	9,792
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 $2,223 and $0, respectively)	(4,127)	0
Reclassification adjustment for losses included in net income	0	0
Fair value of derivative instruments designated as cash flow hedges, net of tax	(4,127)	0
Other comprehensive income, net of tax	21,193	9,792
Comprehensive Income	$ 63,962	$ 34,918