Consolidated Statements Of Cash Flows (USD $) In Thousands	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
OPERATING ACTIVITIES
Net income	$ 83,979	$ 135,213
Adjustments to reconcile net income to cash provided by operating activities:
Amortization of intangibles	2,200	3,164
Provision for loan and lease losses	98,396	48,756
Deferred tax (benefit) expense	(17,133)	(34,105)
Change in current taxes payable	19,774	13,899
Depreciation	32,408	30,296
Change in accrued interest payable	(5,755)	2,771
Change in income earned not collected	38,043	(8,842)
Gain on acquisitions	(64,984)	(136,000)
Securities losses (gains)	545	(945)
Origination of loans held for sale	(182,184)	(255,495)
Proceeds from sale of loans	218,533	235,171
Gain on sale of loans	(3,420)	(3,371)
Loss on sale of other real estate	1,349	720
Net amortization of premiums and discounts	(85,752)	21,550
FDIC receivable for loss share agreements	237,468	78,451
Net change in other assets	96,562	35,462
Net change in other liabilities	(7,836)	43,115
Net cash provided by operating activities	462,193	209,810
INVESTING ACTIVITIES
Net change in loans outstanding	260,861	311,122
Purchases of investment securities available for sale	(632,041)	(1,603,861)
Proceeds from maturities of investment securities held to maturity	433	518
Proceeds from maturities of investment securities available for sale	1,214,988	797,949
Proceeds from sales of investment securities available for sale	191,697	24,137
Net change in overnight investments	(343,264)	(13,636)
Proceeds from sale of other real estate	24,748	40,943
Additions to premises and equipment	(32,574)	(39,916)
Net cash received from acquisitions	974,043	106,489
Net cash provided (used) by investing activities	1,658,891	(376,255)
FINANCING ACTIVITIES
Net change in time deposits	(617,419)	86,680
Net change in demand and other interest-bearing deposits	(959,739)	655,263
Net change in short-term borrowings	(227,642)	(505,105)
Net change in long-term obligations	(224,915)	81,482
Repurchase of common stock	(7,575)	0
Cash dividends paid	(6,255)	(6,260)
Net cash provided (used) by financing activities	(2,043,545)	312,060
Change in cash and due from banks	77,539	145,615
Cash and due from banks at beginning of period	460,178	480,242
Cash and due from banks at end of period	537,717	625,857
CASH PAYMENTS FOR:
Interest	85,197	99,466
Income taxes	17,349	46,041
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Unrealized securities gains	8,642	8,226
Unrealized (loss) on cash flow hedge	(308)	(5,942)
Prepaid pension benefit	3,296	0
Transfers of loans to other real estate	77,780	55,559
Acquisitions:
Assets acquired	2,226,880	2,291,659
Liabilities assumed	2,161,896	2,155,861
Net assets acquired	$ 64,984	$ 135,798

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The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by (used in) operations using the indirect method. Includes acquisition-related premiums/discounts being amortized and accreted into income.

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The prepaid gross amount of liability pursuant to FAS 87 par 37 and 38 as a net periodic pension cost. If the additional pension liability required to be recognized exceeds the unrecognized prior service costs, then the excess (which is the net loss not yet recognized as net periodic pension cost) is to be recorded as a reduction of other comprehensive income, before adjusting for tax effects. If in a subsequent measurement, the amount of minimum liability is eliminated or adjusted, this adjustment is offset against other comprehensive income in Accumulated Comprehensive Income. This line also includes changes in an entity's share of an equity investee's increase (decrease) in additional pension liability not yet recognized as a net periodic pension cost. Eliminated upon adoption of FAS 158.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents.

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The component of income tax expense for the period representing the net change in the entity's deferred tax assets and liabilities pertaining to continuing operations.

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The net gain or loss realized from the sale, exchange, redemption, or retirement of securities.

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The net gain or loss resulting from sales and other disposals of other real estate owned, increases and decreases in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

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The net change during the period in the amount of cash payments due to taxing authorities for taxes that are based on the reporting entity's earnings.

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The net cash inflow (outflow) in the total of all demand deposits, including checking and negotiable order of withdrawal (NOW) accounts, classified as cash flows from financing activities.

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The net change during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity.

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Net cash inflow (outflow) in the total of all time deposits and shall be classified as cash flows from financing activities.

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The net cash inflow (outflow) from investing activity.

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The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities.

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The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income.

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The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes.

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The aggregate amount of cash outflow for loans purchased and created with the intention to resell them in the near future.

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The cash outflow to reacquire common stock during the period.

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The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.

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-Name Statement of Financial Accounting Standard (FAS)
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Subparagraph a

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The cash inflow associated maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher OTS
-Name Federal Regulation (FR)
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-Subsection III

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The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity.

+ References

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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- Definition

The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization.

+ References

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- Definition

The cash inflow associated with the sale of other real estate held for investment not otherwise defined in the taxonomy.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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The sum of the periodic provision charged to operations, based on an assessment of the uncollectibility of the loan and lease portfolio, the offset to which is either added to or deducted from the allowance account for the purpose of reducing loan receivable and leases to an amount that approximates their net realizable value (the amount expected to be collected).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-DEP
-Chapter 5
-Paragraph 168, 169, 170
-IssueDate 2006-05-01

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 11
-Article 9

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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- Definition

Value of real estate transferred in noncash transactions during the reporting period.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
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- Definition

The aggregate increase (decrease) in the market value of unsold investments whose gains (losses) are included in earnings.

+ References

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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