Average period covered by credit risk derivative contracts, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Nominal or face amount used to calculate payments on the derivative asset.

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Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.

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Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

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Fixed interest rate related to the interest rate derivative.

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Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

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Note 9 - Derivative Financial Instruments (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2009
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Asset, Notional Amount			$ 15.0	$ 17.5	$ 17.5
Junior Subordinated Notes					36.1
Average Term of Credit Risk Derivatives	5 years
Derivative, Fixed Interest Rate				5.38%
Derivative, Variable Interest Rate				1.55%
Derivative, Cap Interest Rate			2.00%
Derivative, Collateral, Right to Reclaim Cash	$ 1.6	$ 2.3