Components of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018		Jun. 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				(14.1)		10.6
Amounts reclassified to consolidated statement of income		$ (0.1)	$ (12.1)	0.0	[1],[2]	12.2	[2],[3]
Tax benefit (expense)				1.8		(0.3)
Other comprehensive income (loss)		(15.6)	15.2	(12.3)		22.5
Ending balance		(49.3)	(41.3)	(49.3)		(41.3)
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				(6.4)		14.6
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)				(6.4)		14.6
Ending balance		(38.3)	(35.4)	(38.3)		(35.4)
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				(7.7)		(6.2)
Amounts reclassified to consolidated statement of income	[2]			0.0	[1]	0.3	[3]
Tax benefit (expense)				1.8		1.9
Other comprehensive income (loss)				(5.9)		(4.0)
Ending balance		$ (10.5)	$ (4.6)	$ (10.5)		$ (4.6)

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

[2] The Company reclassified a loss of $0.1 and a loss of $12.1 to the consolidated statement of income during the three months ended June 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.