Termination Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2013 Salary and Benefits Continuation [Member]	Mar. 31, 2013 Employee Severance [Member]	Mar. 31, 2013 One Time Termination Benefits [Member]	Dec. 31, 2012 One Time Termination Benefits [Member]
Termination charges taken in the current period YTD	$ 0.8
Payments remitted on prior period termination charges	1.8
Termination benefits remaining to be remitted		0.3	1.7	2.0	3.1
Termination benefits expected to be paid within next 12 months	$ 2.0

Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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

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- Definition

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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