Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income	$ 106.7	$ 131.7	$ 95.5
Other Comprehensive Income (loss), Derivatives Qualifying as Hedges, Net of Tax
Unrealized income (loss) on derivative instruments, net of tax (expense) benefit of $(0.8), $1.0 and $(0.7), respectively	1.9	(2.3)	1.7
Foreign currency translation:
Foreign currency translation adjustments, net of tax (expense) benefit of $(0.6), $5.0 and $0.0, respectively	6.2	(19.5)	16.8
Other Comprehensive Income (loss) Pension and Other Post-retirement Plans Adjustment Net Of Tax
Recognition of deferred pension and other post-retirement items, net of tax benefit of $2.2, $5.8 and $0.6, respectively	(8.7)	(19.9)	(8.7)
Other Comprehensive Income (Loss), Net of Tax	(0.6)	(41.7)	9.8
Comprehensive income	$ 106.1	$ 90.0	$ 105.3