Comprehensive Income (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Comprehensive Income [Abstract]
Net income	$ 16.9	$ 17.8	$ 56.7	$ 59.3
Other comprehensive income (loss), net of tax: [Abstract]
Foreign currency translation adjustments	(25.1)	37.3	6.4	(9.3)
Defined benefit pension and other postretirement plans	1.6	0.2	2.1	2.2
Unrealized gains (losses) on derivatives: [Abstract]
Unrealized gains arising during the period	0.3	0.2	0.4	1.1
Losses included in net income	(0.7)	(0.5)	(2.1)	(2.1)
Net unrealized losses on derivatives	(0.4)	(0.3)	(1.7)	(1.0)
Other comprehensive income (loss), net of tax	(23.9)	37.2	6.8	(8.1)
Comprehensive income (loss)	$ (7.0)	$ 55.0	$ 63.5	$ 51.2