Acquisitions and Divestitures (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended	1 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Apr. 30, 2013 Energy Equipment Group
Acquisition:
Purchase price	$ 0	$ 5.5	$ 83.4	$ 7.5	$ 27.9
Net cash paid	0	4.9	37.2	4.9	27.9
Goodwill recorded	0	3.2	9.5	4.0	3.2
Divestiture:
Proceeds	0	0	35.6	2.1
Gain recognized	0	0	12.5	1.5
Goodwill charged off	$ 0	$ 0	$ 4.8	$ 0.1

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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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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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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This element represents the cash inflow during the period from the sale of a component of the entity.

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