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Equity Awards - Stock Options Narrative (Details) (Stock Options [Member], USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted		0
Exercisable/Vested stock options	717,292	717,292
Fair value of exercisable/vested stock options		$ 0.4	$ 0.3
Stock-based compensation expense	$ 0

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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