Other Charges (Details) (USD $) In Millions	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Other Charges
Acquisition-related charges	$ 0.3	$ 1.0	$ 0.9	$ 1.7
Transition-related charges incurred in connection with acquired businesses	0.3	0.9	3.0	1.4
Professional fees incurred in connection with the internal investigation	2.0		3.2
Loss on divestiture of business				1.0
Restructuring charges				0.2
Other charges	0.3		0.3
Total Other charges	$ 2.9	$ 1.9	$ 7.4	$ 4.3

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Other expenses charged against earnings in the period of an event that is infrequent in occurrence or unusual in nature.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

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- Definition

The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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Expenses charged against earnings in the period of an event that is infrequent in occurrence or unusual in nature.

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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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