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Derivative Instruments and Hedging Activities (Details) (IRLCs [Member], Derivatives not designated as hedges [Member], USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2012
|
Dec. 31, 2011
|
Sep. 30, 2011
|
|---|---|---|---|
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IRLCs [Member] | Derivatives not designated as hedges [Member]
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| Aggregate contractual or notional amounts of derivative financial instruments | |||
| Notional Amount | $ 14,747 | $ 9,155 | $ 10,421 |