Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Note 7 - Equity-based Compensation (Details) - Summary of Stock Award Activity (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended							12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Stock Awards [Member]	Dec. 31, 2012 Stock Awards [Member]	Dec. 31, 2011 Stock Awards [Member]	Dec. 31, 2010 Stock Awards [Member]	Dec. 31, 2013 Restricted Stock [Member]	Dec. 31, 2012 Restricted Stock [Member]	Dec. 31, 2011 Restricted Stock [Member]	Dec. 31, 2013 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2012 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2011 Restricted Stock Units (RSUs) [Member]
Stock award activity [Rollforward]
Stock Awards - Outstanding				555,025	698,869	643,117	888,855
Weighted Average Award Date Fair Value - Outstanding (in Dollars per share)				$ 22.79	$ 19.39	$ 17.48	$ 15.25
Stock Awards - Awarded								435,025	239,523	168,018	112,401	222,379	6,768
Weighted Average Award Date Fair Value - Awarded (in Dollars per share)								$ 24.09	$ 18.07	$ 26.41	$ 25.11	$ 18.11	$ 26.60
Stock Awards - Distributed								(274,784)	(289,001)	(270,142)	(13,761)	(15,177)	(9,934)
Weighted Average Award Date Fair Value - Distributed (in Dollars per share)								$ 19.04	$ 13.42	$ 13.38	$ 18.87	$ 14.32	$ 11.19
Stock Awards - Forfeited								(236,388)	(36,325)	(140,448)	(166,337)	(65,647)	0
Weighted Average Award Date Fair Value - Forfeited (in Dollars per share)								$ 23.10	$ 20.13	$ 22.97	$ 19.55	$ 18.18	$ 0.00
Stock Awards - Outstanding				555,025	698,869	643,117	888,855
Weighted Average Award Date Fair Value - Outstanding (in Dollars per share)				$ 22.79	$ 19.39	$ 17.48	$ 15.25
Expense associated with stock awards	$ 3.0	$ 4.0	$ 3.7
Unrecognized pre-tax expense	$ 7.5
Remaining period for recognition	1 year 10 months 24 days