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Off-Balance Sheet Credit Risk (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Fair value of securities accepted as collateral permitted to sell or repledge	$ 979.2	$ 1,000.0
Fair value of collateral securities sold or repledged	78.4	80.2
Outstanding commitments to originate loans	251.6	141.0
Letters of credit outstanding	10.5	9.2
Unused lines of Credit [Member]
Unused lines of credit to commercial and consumer borrowers	$ 284.3	$ 102.4

- Definition

Fair value as of the balance sheet date of customer securities accepted as collateral by the entity that it is permitted by contract or custom to sell or re-pledge to counterparties as collateral.

+ References+ Details

- Definition

Fair value as of the balance sheet date of customer securities accepted as collateral by the entity that it has sold or re-pledged to counterparties as collateral.

+ References+ Details