Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net loss	$ (26.9)	$ (8.3)
Other comprehensive income (loss), net of tax:
Foreign currency translation gain (loss)	1.6	(1.8)
Cash flow hedges:
Unrealized loss on cash flow hedges arising during the period, net of tax of ($1.0)	(3.1)	0.0
Reclassification adjustment for net losses included in net income, net of tax of $0.1	0.2	0.0
Defined benefit plans:
Amortization of prior service benefits included in net income, net of tax of ($0.1), ($0.2)	(0.5)	(0.6)
Amortization of net actuarial loss included in net income, net of tax of $0.8, $1.2	3.0	4.1
Total other comprehensive income	1.2	1.7
Total comprehensive loss	$ (25.7)	$ (6.6)