Consolidated Condensed Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating activities:
Net Income	$ 31,475	$ 22,196
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, accretion and amortization	1,470	2,784
Provision for loan losses	9,000	14,100
Amortization of core deposit intangibles	1,754	669
Realized net investment security gains		(6,635)
OREO devaluations	1,359	2,535
Bank owned life insurance income	(1,202)	(1,229)
Changes in assets and liabilities:
(Increase) in other assets	(19,773)	(19,547)
Increase (Decrease) in other liabilities	2,854	(6,539)
Net cash provided by operating activities	26,937	8,334
Investing activities:
Proceeds from sales of available-for-sale securities		113,105
Proceeds from maturity of:
Available-for-sale securities	229,878	75,071
Held-to-maturity securities	157,101	59,506
Purchases of:
Available-for-sale securities	(419,998)	(231,714)
Held-to-maturity securities	(119,127)
Net (increase) in loans	(23,339)	(25,403)
Sale of assets/liabilities related to Vision Bank	(153,724)
Purchases of bank owned life insurance	(2,213)	(3,000)
Purchases of premises and equipment, net	(125)	(1,990)
Net cash (used in) investing activities	(331,547)	(14,425)
Financing activities:
Net increase in deposits	352,274	219,258
Net (decrease) in short-term borrowings	(26,907)	(346,950)
Proceeds from issuance of long-term debt		150,000
Repayment of long-term debt	(1,381)	(24)
Cash payment for fractional shares in dividend reinvestment plan	(1)	(1)
Cash dividends paid on common and preferred stock	(15,731)	(15,725)
Net cash provided by financing activities	308,254	6,558
Increase in cash and cash equivalents	3,644	467
Cash and cash equivalents at beginning of year	157,486	133,780
Cash and cash equivalents at end of period	161,130	134,247
Supplemental disclosures of cash flow information:
Interest	12,992	15,217
Income taxes
Non cash activities:
Securities acquired through payable		$ 25,000