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Commitments, Credit Risk And Contingencies (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2012 | Dec. 31, 2011
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Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Percentage of commitments to extend credit dependent upon the financial condition of the customer | 82.10% |
Commitments To Extend Credit [Member] |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Extended credit and standby letters of credit | $ 2,149,312 | $ 1,943,889
Standby Letters Of Credit [Member] |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Extended credit and standby letters of credit | $ 109,204 | $ 113,268

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- Definition The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611 + Details
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- Details
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