Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest and Dividend Income
Loans, including fees	$ 168,976	$ 163,991
Mortgage loans held for sale, including fees	971	1,401
Investment securities:
Taxable interest	17,864	13,548
Tax-exempt interest	2,063	1,664
Amortization of FDIC loss share receivable	0	(4,386)
Other	2,659	718
Total interest and dividend income	192,533	176,936
Deposits:
NOW and MMDA	11,100	7,358
Savings	320	222
Time deposits	4,638	4,354
Short-term borrowings	277	485
Long-term debt	3,380	3,114
Total interest expense	19,715	15,533
Net interest income	172,818	161,403
Provision for loan losses	6,154	14,905
Net interest income after provision for loan losses	166,664	146,498
Non-interest Income
Mortgage income	14,115	19,940
Service charges on deposit accounts	11,153	10,951
Title revenue	4,741	4,745
Broker commissions	2,738	3,823
ATM/debit card fee income	3,585	3,503
Credit card and merchant-related income	3,227	2,655
Income from bank owned life insurance	1,311	1,202
Gain on sale of available for sale securities	0	196
Other non-interest income	6,476	8,830
Total non-interest income	47,346	55,845
Non-interest Expense
Salaries and employee benefits	81,853	80,742
Net occupancy and equipment	16,021	16,907
Communication and delivery	3,044	3,059
Marketing and business development	3,424	3,502
Data processing	6,941	5,918
Professional services	5,335	3,780
Credit and other loan related expense	4,526	2,671
Insurance	4,529	4,184
Travel and entertainment	2,484	2,383
Other non-interest expense	12,861	14,306
Total non-interest expense	141,018	137,452
Income before income tax expense	72,992	64,891
Income tax expense	22,519	22,122
Net Income	50,473	42,769
Preferred stock dividends	(3,599)	(2,576)
Net Income Available to Common Shareholders	46,874	40,193
Earnings allocated to unvested restricted stock	(346)	(460)
Earnings allocated to common shareholders	$ 46,528	$ 39,733
Earnings per common share - Basic (in usd per share)	$ 1.01	$ 0.98
Earnings per common share - Diluted (in usd per share)	1.00	0.97
Cash dividends declared per common share (in usd per share)	$ 0.36	$ 0.34
Comprehensive Income
Net income	$ 50,473	$ 42,769
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during the period (net of tax effects of $2,421 and $13,702, respectively)	4,496	25,447
Reclassification adjustment for gains included in net income (net of tax effects of $0 and $69, respectively)	0	(127)
Unrealized gains (losses) on securities, net of tax	4,496	25,320
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 $88 and $2,223, respectively)	163	(4,127)
Reclassification adjustment for gains included in net income (net of tax effects of $24 and $0, respectively)	(45)	0
Fair value of derivative instruments designated as cash flow hedges, net of tax	118	(4,127)
Other comprehensive income (loss), net of tax	4,614	21,193
Comprehensive income	$ 55,087	$ 63,962