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Recent Transactions Recent Transactions (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Business Combinations [Abstract]
Ownership percentage by noncontrolling owners	29.00%
Payments to noncontrolling interests	$ 7.4
Noncontrolling interest, decrease from purchase of interests	4.0
Adjustments to Additional Paid in Capital, Other	$ 3.4
Ownership percentage by parent	80.00%

Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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- Definition

The cash outflow to return capital to noncontrolled interest, which generally occurs when noncontrolling shareholders reduce their ownership stake (in a subsidiary of the entity). This element does not include dividends paid to noncontrolling shareholders.

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