Monetary amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

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- Definition

Amount of negative valuation adjustment on 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

No definition available.

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- Definition

Amount of net positive ineffectiveness from comparing the total hedge cost to the changes in fair value of Mortgage Servicing Rights derivative assets attributable to interest rate changes.

+ References

No definition available.

+ Details

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- Definition

Amount of positive valuation adjustment on 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

No definition available.

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- Definition

Termination value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, related to a provision from agreements with each of its derivative counterparties stating that the entity will be considered on default on its derivative obligations if the entity defaulted on payment of indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender.

+ References

No definition available.

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- Definition

Fair value as of the balance sheet date of the gross assets less the gross liabilities of a derivative asset or group of derivative assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13495-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

Reference 4: 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

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- Definition

The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 205G

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5618551-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (a),(c),(d),(e)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624171-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44C

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Fair value as of the balance sheet date of the gross assets less the gross liabilities of a derivative liability or group of derivative liabilities.

+ References

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- Definition

The face amount 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

No definition available.

+ Details

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Derivative Financial Instruments (Details) (USD $)	12 Months Ended
Derivative Financial Instruments (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Derivatives, Fair Value [Line Items]
Net positive ineffectiveness on MSR fair value	$ 4,400,000	$ 7,300,000
Notional amount of mirror-image derivative contracts	71,200,000
Termination value of derivatives	1,800,000
Designated as Hedging Instrument [Member] \| Mortgage Banking, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized	(5,360,000)	987,000	4,888,000
Designated as Hedging Instrument [Member] \| Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Off-balance sheet obligations	199,500,000	163,000,000
Negative valuation adjustment	(2,200,000)
Positive valuation adjustment		3,100,000
Designated as Hedging Instrument [Member] \| Forward Contracts [Member] \| Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liability	2,217,000	(3,143,000)
Not Designated as Hedging Instrument [Member] \| Mortgage Banking, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized	19,929,000	16,655,000	(8,122,000)
Not Designated as Hedging Instrument [Member] \| Bankcard and Other Fees [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized	(79,000)	0	0
Not Designated as Hedging Instrument [Member] \| Future Contracts [Member] \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	986,000	(2,897,000)
Not Designated as Hedging Instrument [Member] \| Rate Lock Commitments [Member]
Derivatives, Fair Value [Line Items]
Off-balance sheet obligations	117,500,000	67,900,000
Positive valuation adjustment	702,000	337,000
Not Designated as Hedging Instrument [Member] \| Rate Lock Commitments [Member] \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	1,689,000	0
Not Designated as Hedging Instrument [Member] \| Rate Lock Commitments [Member] \| Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liability	1,769,000	0
Not Designated as Hedging Instrument [Member] \| Exchange Traded Purchased Options [Member] \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	144,000	313,000
Not Designated as Hedging Instrument [Member] \| OTC Written Options [Member] \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	702,000	337,000
Not Designated as Hedging Instrument [Member] \| Exchange Traded Written Options [Member] \| Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liability	$ 694,000	$ 1,562,000