Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statements of Comprehensive Income
Net income	$ 187.9	$ 164.3	$ 135.5
Other comprehensive income (loss)
Currency translation adjustments	19.6	11.7	(10.1)
Net unrealized pension and other benefit actuarial gains (losses) and prior service credits, net of tax	16.9	(10.8)	(5.0)
Net unrealized gains (losses) on financial instruments, net of tax	6.1	7.0	(9.6)
Other comprehensive income (loss)	42.6	7.9	(24.7)
Comprehensive income	$ 230.5	$ 172.2	$ 110.8