Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net income	$ 66.4	$ 58.8	$ 17.4
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(16.4)	(26.7)	26.2
Foreign currency adjustment for sale of foreign entity	(8.6)
Defined benefit pension plans:
Net gain (loss) for the period	(4.2)	(5.3)	1.7
Amortization of prior service cost included in net periodic pension cost	0.2	0.2	0.2
Amortization of net losses included in net periodic pension cost	1.7	1.4	1.8
Reduction in obligation related to pension curtailment	8.6
Defined benefit pension plan	6.3	(3.7)	3.7
Other comprehensive income (loss), net of tax	(18.7)	(30.4)	29.9
Comprehensive income	$ 47.7	$ 28.4	$ 47.3