Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements of Comprehensive Income
Net income	$ 68.4	$ 66.4	$ 58.8
Other comprehensive income (loss):
Foreign currency translation adjustments	14.3	(16.4)	(26.7)
Foreign currency adjustment for sale of foreign entity		(8.6)
Defined benefit pension plans, net of tax:
Net loss, net of tax benefits of $4.1, $2.7, and $3.3 in 2012, 2011 and 2010, respectively	(6.5)	(4.2)	(5.3)
Amortization of prior service cost included in net periodic pension cost, net of tax expense of $0.1 in 2011 and 2010		0.2	0.2
Amortization of net losses included in net periodic pension cost, net of tax expense of $0.2, $1.0, and $0.9 in 2012, 2011 and 2010, respectively	0.4	1.7	1.4
Reduction in obligation related to pension curtailment, net of tax expense of $5.4		8.6
Defined benefit pension plans, net of tax	(6.1)	6.3	(3.7)
Other comprehensive income (loss)	8.2	(18.7)	(30.4)
Comprehensive income	$ 76.6	$ 47.7	$ 28.4