Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income (loss)	$ (88.1)	$ (75.4)	$ 177.1
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	(21.4)	(14.5)	(11.6)
Unrealized gain (losses) on derivative financial instruments	0.0	0.0	0.3
Unrealized gain (losses) on securities, net of reversals	0.7	0.6	1.0
Defined benefit pension and post retirement plans:
Amortization of prior service cost	0.3	0.0	0.2
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Arising During Period, Net of Tax	0.0	(6.1)	0.0
Net gain (loss)	(0.4)	(26.7)	23.0
Amortization of net loss	4.8	3.9	4.7
Exchange gain (loss) on remeasurement	1.2	0.7	1.1
Other comprehensive income (loss), net of tax	(14.8)	(42.1)	18.7
Comprehensive income (loss)	$ (102.9)	$ (117.5)	$ 195.8