Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
ASSETS
Cash and due from banks	$ 63,400	$ 118,441
Federal funds sold and other short-term investments	4,436	6,829
Cash and cash equivalents	67,836	125,270
Time deposits in other financial institutions	2,605	3,355
Securities:
Trading, at fair value	0	1,801
Available for sale, at fair value (cost of $1,366,069 at September 30, 2014, and $1,659,456 at December 31, 2013)	1,369,703	1,633,902
Held to maturity, at cost (fair value of $266,641 at September 30, 2014, and $237,437 at December 31, 2013)	255,312	237,498
Other investments, at cost	20,514	21,843
Loans held for sale	93,054	46,665
Loans and leases receivable:
Held to maturity	3,798,305	3,496,952
Loans covered by loss share agreements	3,850	5,749
Allowance for loan and lease losses	(41,698)	(41,685)
Loans and leases receivable, net	3,760,457	3,461,016
Premises, furniture and equipment, net	132,240	135,714
Other real estate, net	20,475	29,852
Goodwill	35,583	35,583
Other intangible assets, net	33,399	32,959
Cash surrender value on life insurance	82,224	81,110
FDIC indemnification asset	83	249
Other assets	61,324	76,899
TOTAL ASSETS	5,934,809	5,923,716
Deposits:
Demand	1,274,439	1,238,581
Savings	2,599,850	2,535,242
Time	852,430	892,676
Total deposits	4,726,719	4,666,499
Short-term borrowings	348,305	408,756
Other borrowings	334,513	350,109
Accrued expenses and other liabilities	41,873	58,892
TOTAL LIABILITIES	5,451,410	5,484,256
STOCKHOLDERS' EQUITY:
Common stock (par value $1 per share; authorized 25,000,000 shares; issued 18,477,463 shares at September 30, 2014 and 18,399,156 shares at December 31, 2013)	18,477	18,399
Capital surplus	94,393	91,632
Retained earnings	288,555	265,067
Accumulated other comprehensive income (loss)	276	(17,336)
Treasury stock at cost (0 shares outstanding at both September 30, 2014 and December 31, 2013)	0	0
TOTAL STOCKHOLDERS' EQUITY	483,399	439,460
TOTAL LIABILITIES AND EQUITY	5,934,809	5,923,716
Preferred Stock [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series A Preferred Stock [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series C Preferred Stock [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	$ 81,698	$ 81,698