Components of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018		Sep. 30, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance				$ (36.4)		$ (63.8)
Adoption of new accounting pronouncement (Note 2)				(0.6)
Other comprehensive income (loss) before reclassifications				(6.1)		14.2
Amounts reclassified to consolidated statement of income		$ (0.6)	$ (1.4)	0.6	[1],[2]	13.6	[2],[3]
Tax benefit (expense)				(0.4)		0.5
Other comprehensive income (loss)		6.4	5.8	(5.9)		28.3
Ending balance		(42.9)	(35.5)	(42.9)		(35.5)
Foreign Currency Adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance				(31.6)		(50.0)
Adoption of new accounting pronouncement (Note 2)				(0.3)
Other comprehensive income (loss) before reclassifications				(6.6)		22.5
Amounts reclassified to consolidated statement of income	[2]			0.0	[1]	0.0	[3]
Tax benefit (expense)				0.0		0.0
Other comprehensive income (loss)				(6.6)		22.5
Ending balance		(38.5)	(27.5)	(38.5)		(27.5)
Defined Benefit Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance				(0.6)		(13.2)
Adoption of new accounting pronouncement (Note 2)				0.1
Other comprehensive income (loss) before reclassifications				0.0		2.2
Amounts reclassified to consolidated statement of income	[2]			0.0	[1]	11.9	[3]
Tax benefit (expense)				0.0		(2.2)
Other comprehensive income (loss)				0.0		11.9
Ending balance		(0.5)	(1.3)	(0.5)		(1.3)
Derivative Agreements
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance				(4.2)		(0.6)
Adoption of new accounting pronouncement (Note 2)				(0.4)
Other comprehensive income (loss) before reclassifications				0.5		(10.5)
Amounts reclassified to consolidated statement of income	[2]			0.6	[1]	1.7	[3]
Tax benefit (expense)				(0.4)		2.7
Other comprehensive income (loss)				0.7		(6.1)
Ending balance		$ (3.9)	$ (6.7)	$ (3.9)		$ (6.7)

[1] Amounts reclassified to cost of sales or interest expense.

[2] The Company reclassified a loss of $0.6 and a loss of $1.4 to the consolidated statement of income during the three months ended September 30, 2018 and 2017, respectively.

[3] In connection with the termination of international defined benefit plans $11.9 was reclassified to SG&A. All other amounts were reclassified to Cost of Sales.