Interest and Other Expenses (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Interest and Other Expenses [Abstract]
Interest expense	$ 10.3	$ 11.2	$ 31.1	$ 32.5
Interest income	(1.5)	(2.0)	(4.7)	(5.0)
Foreign exchange losses	0.3	1.7	0.6	2.0
Miscellaneous expenses, net	1.0	0.1	6.2	4.4
Interest and other expenses	$ 10.1	$ 11.0	$ 33.2	$ 33.9

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

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The cost of borrowed funds accounted for as interest that was charged against earnings during the period.

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