Consolidated Statements of Comprehensive Income (loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements of Comprehensive Income
Net income (loss)	$ 73.1	$ 84.2	$ (112.9)
Other comprehensive income (loss):
Foreign currency translation adjustments	51.1	(32.4)	(75.2)
Reversal of foreign currency translation for sale of foreign entity, net of tax		6.9
Cash flow hedges, net of tax	0.6	2.9
Defined benefit pension plans, net of tax			36.1
Other comprehensive income (loss)	51.7	(22.6)	(39.1)
Comprehensive income (loss)	$ 124.8	$ 61.6	$ (152.0)