Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets
Cash and due from banks	$ 155,236	$ 147,789
Short-term interest bearing accounts	8,694	1,392
Securities available for sale, at fair value	1,365,521	1,338,290
Securities held to maturity (fair value $516,656 and $525,050, respectively)	515,628	527,948
Trading securities	10,406	9,259
Federal Reserve and Federal Home Loan Bank stock	53,040	47,033
Loans	6,367,911	6,198,057
Less allowance for loan losses	66,600	65,200
Net loans	6,301,311	6,132,857
Premises and equipment, net	82,185	84,187
Goodwill	268,043	265,439
Intangible assets, net	16,904	15,815
Bank owned life insurance	170,641	168,012
Other assets	128,809	129,247
Total assets	9,076,418	8,867,268
Liabilities
Demand (noninterest bearing)	2,220,256	2,195,845
Savings, negotiable order withdrawal and money market	3,962,579	3,905,432
Time	832,449	872,411
Total deposits	7,015,284	6,973,688
Short-term borrowings	831,185	681,703
Long-term debt	88,958	104,087
Junior subordinated debt	101,196	101,196
Other liabilities	99,434	93,278
Total liabilities	8,136,057	7,953,952
Stockholders' equity
Preferred stock, $0.01 par value. Authorized 2,500,000 shares at June 30, 2017 and December 31, 2016	0	0
Common stock, $0.01 par value. Authorized 100,000,000 shares at June 30, 2017 and December 31, 2016; issued 49,651,493 at June 30, 2017 and December 31, 2016	497	497
Additional paid-in-capital	573,109	575,078
Retained earnings	523,260	501,761
Accumulated other comprehensive loss	(17,891)	(21,520)
Common stock in treasury, at cost, 6,141,431 and 6,393,743 shares at June 30, 2017 and December 31, 2016, respectively	(138,614)	(142,500)
Total stockholders' equity	940,361	913,316
Total liabilities and stockholders' equity	$ 9,076,418	$ 8,867,268