Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and due from banks	$ 218,276	$ 191,626
Money market and other interest-earning investments	45,784	31,246
Total cash and cash equivalents	264,060	222,872
Trading securities - at fair value	3,097	2,816
Investment securities - available-for-sale, at fair value
Securities - available-for-sale, fair value	2,500,784	2,071,276
Securities - held-to-maturity, at amortized cost (fair value $433,201 and $507,669 respectively)	402,828	484,590
Federal Home Loan Bank stock, at cost	37,927	30,835
Residential loans held for sale, at fair value	12,591	4,528
Loans, net of unearned income	4,824,261	4,140,843
Covered loans, net of discount	372,333	626,360
Total loans	5,196,594	4,767,203
Allowance for loan losses	(49,047)	(57,117)
Allowance for loan losses - covered loans	(5,716)	(943)
Net loans	5,141,831	4,709,143
FDIC indemnification asset	115,738	167,714
Premises and equipment, net	89,868	71,870
Accrued interest receivable	46,979	44,801
Goodwill	338,820	253,177
Other intangible assets	29,220	33,624
Company-owned life insurance	270,629	248,693
Other real estate owned and repossessed personal property	11,179	7,119
Other real estate owned - covered	26,137	30,443
Assets held for sale	15,047	16,861
Other assets	236,888	209,321
Total assets	9,543,623	8,609,683
Deposits:
Noninterest-bearing demand	2,007,770	1,728,546
Interest-bearing:
NOW	1,827,665	1,569,084
Savings	1,869,377	1,570,422
Money market	292,860	295,847
Time	1,281,281	1,447,664
Total deposits	7,278,953	6,611,563
Short-term borrowings	589,815	424,849
Other borrowings	237,493	290,774
Accrued expenses and other liabilities	242,797	248,941
Total liabilities	8,349,058	7,576,127
Shareholders' Equity
Preferred stock, series A, 1,000 shares authorized, no shares issued or outstanding	0	0
Common stock, $1.00 stated value, 150,000 shares authorized, 101,179 and 94,654 shares issued and outstanding, respectively	101,179	94,654
Capital surplus	916,918	834,033
Retained earnings	146,667	89,865
Accumulated other comprehensive income (loss), net of tax	29,801	15,004
Total shareholders' equity	1,194,565	1,033,556
Total liabilities and shareholders' equity	$ 9,543,623	$ 8,609,683