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Restructuring Charges (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Restructuring Charges [Abstract]
Restructuring charge		$ 4.8
Restructuring charge, after tax		3.7
Amount of restructuring charges spent	1.8
Restructuring charges, remaining reserve	$ 0.1

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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