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Commitments and Contingent Liabilities (Details) (USD $)
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12 Months Ended | |||
|---|---|---|---|---|
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Sep. 30, 2004
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| Minimum future rental payments: | ||||
| 2012 | $ 4,077,000 | |||
| 2013 | 3,927,000 | |||
| 2014 | 3,615,000 | |||
| 2015 | 3,046,000 | |||
| 2016 | 1,604,000 | |||
| Thereafter | 5,678,000 | |||
| Total minimum payments | 21,947,000 | |||
| Operating Leases, Rent Expense, Sublease Rentals | 655,000 | 591,000 | 602,000 | |
| Operating Leases, Rent Expense, Net | 4,600,000 | 4,500,000 | 3,500,000 | |
| Deferred Gain on Sale of Property | 234,000 | 317,000 | 1,300,000 | |
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Commitments to Extend Credit [Member]
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| Minimum future rental payments: | ||||
| Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability | 709,900,000 | 622,800,000 | ||
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Standby Letters of Credit [Member]
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| Minimum future rental payments: | ||||
| Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability | 30,900,000 | 31,200,000 | ||
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Commercial Letter of Credit [Member]
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| Minimum future rental payments: | ||||
| Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability | $ 243,000 | $ 0 | ||
| X | ||||||||||
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- Definition
Amount of gain on the sale of property that does not qualify for gain recognition as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The total of future contractually required payments on leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within one year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the fifth year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the fourth year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the third year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the second year of the balance sheet date relating to leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due after the fifth year from the balance sheet date on leases defined as operating. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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