Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Cash and due from banks	$ 119,985	$ 160,570
Interest-bearing balances with banks	250,759	145,654
Cash and cash equivalents	370,744	306,224
Securities held to maturity (fair value of $357,216 and $362,893, respectively)	347,977	356,282
Securities available for sale, at fair value	696,885	674,248
Mortgage loans held for sale, at fair value	158,619	177,866
Loans, net of unearned income:
Total loans, net of unearned income	6,235,805	6,202,709
Allowance for loan losses	(42,923)	(42,737)
Loans, net	6,192,882	6,159,972
Premises and equipment, net	179,930	179,223
Other real estate owned:
Total other real estate owned, net	21,322	23,299
Goodwill	470,534	470,534
Other intangible assets, net	22,511	24,074
Bank-owned life insurance	153,309	152,305
Mortgage servicing rights	28,776	26,302
Other assets	121,222	149,522
Total assets	8,764,711	8,699,851
Deposits
Noninterest-bearing	1,579,581	1,561,357
Interest-bearing	5,651,269	5,497,780
Total deposits	7,230,850	7,059,137
Short-term borrowings	9,955	109,676
Long-term debt	192,051	202,459
Other liabilities	80,790	95,696
Total liabilities	7,513,646	7,466,968
Shareholders’ equity
Preferred stock, $.01 par value – 5,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $5.00 par value – 150,000,000 shares authorized; 45,107,066 shares issued; 44,394,707 and 44,332,273 shares outstanding, respectively	225,535	225,535
Treasury stock, at cost	(20,786)	(21,692)
Additional paid-in capital	705,748	707,408
Retained earnings	353,478	337,536
Accumulated other comprehensive loss, net of taxes	(12,910)	(15,904)
Total shareholders’ equity	1,251,065	1,232,883
Total liabilities and shareholders’ equity	8,764,711	8,699,851
Non purchased loans and leases
Loans, net of unearned income:
Total loans, net of unearned income	4,834,085	4,713,572
Other real estate owned:
Total other real estate owned, net	5,056	5,929
Purchased loans
Loans, net of unearned income:
Total loans, net of unearned income	1,401,720	1,489,137
Other real estate owned:
Total other real estate owned, net	$ 16,266	$ 17,370