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Warranties (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Changes in the accruals for warranties
Beginning balance	$ 14.5	$ 12.7	$ 13.5	$ 13.2
Warranty costs incurred	(1.5)	(1.4)	(3.9)	(2.7)
Warranty originations and revisions	1.4	0.9	5.2	2.5
Warranty expirations	(0.6)	(0.2)	(1.0)	(1.0)
Ending balance	$ 13.8	$ 12.0	$ 13.8	$ 12.0

- 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