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Warranties (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
Changes in the accruals for warranties
Beginning balance	$ 13.8	$ 12.0	$ 13.5	$ 13.2
Warranty costs incurred	(1.1)	(1.6)	(5.0)	(4.3)
Warranty originations and revisions	2.6	2.1	7.8	4.6
Warranty expirations	(0.6)	(0.9)	(1.6)	(1.9)
Ending balance	$ 14.7	$ 11.6	$ 14.7	$ 11.6

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References+ Details