Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net income (loss)	$ (20.4)	$ 38.1	$ (32.5)	$ 197.5
Other comprehensive income (loss)
Foreign currency translation adjustments	(9.5)	0.3	(10.6)	(6.8)
Unrealized loss on derivative instruments	0	(0.1)	0	(0.1)
Unrealized gain on marketable securities	0	(0.2)	0.5	1.0
Defined benefit pension plans	1.4	1.0	3.2	4.0
Other comprehensive income (loss), net of tax	(8.1)	1.0	(6.9)	(1.9)
Comprehensive income (loss)	$ (28.5)	$ 39.1	$ (39.4)	$ 195.6