Accumulated Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
ACCUMULATED COMPREHENSIVE LOSS [Abstract]
Amortization of prior service cost	$ 0.5	$ 0.0	$ 0.3
Defined Benefit Plan, Amortization of Gains (Losses)	(6.8)	(5.5)	(7.3)
Foreign currency translation adjustment	(21.4)	(14.5)	(11.6)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	(21.4)	(14.5)	(11.6)
Net gain (loss)	10.2	(25.5)	33.3
Foreign currency translation adjustments, beginning of period	(33.7)	(19.2)	(7.6)
Pension adjustments, beginning of period	(99.0)	(70.3)	(99.0)
Unrealized gain (loss) on derivative instruments, beginning of period	0.0	0.0	(0.3)
Unreazlied gain (loss) on investments, beginning of period	2.6	2.0	1.0
Other, beginning of period	(1.2)	(1.7)	(2.0)
Accumulated comprehensive loss, net of tax, beginning of period	(146.1)	(131.3)	(89.2)	$ (107.9)
Pension adjustments, activity	(5.7)	28.7	(28.7)
Unrealized gain (loss) on derivative financial instruments, activity	0.0	0.0	(0.3)
Unrealized gain (loss) on investments, activity	(0.7)	(0.6)	(1.0)
Other, activity	0.2	0.5	0.3
Foreign currency translation adjustments, end of period	(55.1)	(33.7)	(19.2)
Pension adjustments, end of period	(93.3)	(99.0)	(70.3)
Unrealized gain (loss) on derivative instruments, end of period	0.0	0.0	0.0
Unreazlied gain (loss) on investments, end of period	3.3	2.6	2.0
Other, end of period	(1.0)	(1.2)	(1.7)
Accumulated comprehensive loss, net of tax, end of period	(146.1)	(131.3)	(89.2)	$ (107.9)
Pension adjustments income tax benefit	3.9	17.7	15.5
Reclassification from accumulated other comprehensive income, current period, before tax	(10.3)	(38.9)	23.3
Other comprehensive income (loss), net of tax	(14.8)	(42.1)	18.7
Other comprehensive income (loss), transition obligation, before tax	0.0	0.0	(0.4)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax	(7.3)	(5.5)	(7.2)
Other comprehensive (income) loss, reclassification adjustment from AOCI, pension and other postretirement benefit plans, for net transition (asset) obligation, tax	(2.8)	(2.3)	(2.6)
Other comprehensive (income) loss, reclassification adjustment from AOCI, pension and other postretirement benefit plans, for net (gain) loss, net of tax	(4.5)	(3.2)	(4.6)
Comprehensive income (loss), net of tax, including portion attributable to noncontrolling interest			18.7
Other Comprehensive Income (Loss), Tax	$ 0.7	$ 0.3	$ 0.6