CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015
Income Statement [Abstract]
Net sales		$ 2,693.7	$ 2,334.0		$ 1,914.3
Cost of sales		1,151.3	917.1		667.8
Gross profit		1,542.4	1,416.9		1,246.5
Selling, general and administrative expenses		1,467.6	1,161.0		1,002.5
Acquisition and integration costs		52.9	43.2		8.0
Restructuring charges and other, net		33.4	34.0		10.5
Impairment charges		10.8	23.4	[1]	9.7	[1]
Operating (loss) income		(22.3)	155.3		215.8
Other expenses:
Interest expense		149.8	105.2		83.3
Amortization of debt issuance costs		9.1	6.8	[1]	5.7	[1]
Loss on early extinguishment of debt		0.0	16.9	[1]	0.0	[1]
Foreign currency (gains) losses, net		(18.5)	18.5		15.7
Miscellaneous, net		0.8	(0.6)		0.4
Other expenses		141.2	146.8		105.1
(Loss) income from continuing operations before income taxes		(163.5)	8.5		110.7
Provision for income taxes		21.8	25.5		51.4
(Loss) income from continuing operations, net of taxes		(185.3)	(17.0)		59.3
Income (loss) from discontinued operations, net of taxes		2.1	(4.9)		(3.2)
Net (loss) income		(183.2)	(21.9)	[1]	56.1	[1]
Other comprehensive income:
Foreign currency translation adjustments, net of tax	[2]	9.0	(0.5)		(18.1)
Amortization of pension related costs, net of tax	[3],[4]	8.1	7.6		7.2
Pension re-measurement, net of tax	[5]	1.8	(14.3)		(6.9)
Pension settlement, net of tax	[6]	0.0	0.0		17.3
Pension curtailment gain, net of tax	[7]	2.1	0.0		0.0
Reclassification into earnings of accumulated losses from the de-designated 2013 Interest Rate Swap, net of tax	[8]	2.3	0.0		0.0
Revaluation of derivative financial instruments, net of reclassifications into earnings, net of tax	[9]	0.0	0.8		(1.6)
Other comprehensive income, net	[10]	23.3	(6.4)		(2.1)
Total comprehensive (loss) income		$ (159.9)	$ (28.3)		$ 54.0
Basic (loss) earnings per common share:
Continuing operations (usd per share)		$ (3.52)	$ (0.33)		$ 1.13
Discontinued operations (usd per share)		0.04	(0.09)		(0.06)
Net (loss) income (usd per share)		(3.48)	(0.42)		1.07
Diluted (loss) earnings per common share:
Continuing operations (usd per share)		(3.52)	(0.33)		1.13
Discontinued operations (usd per share)		0.04	(0.09)		(0.06)
Net (loss) income (usd per share)		$ (3.48)	$ (0.42)		$ 1.07
Weighted average number of common shares outstanding:
Basic (in shares)		52,597,582	52,504,196		52,431,193
Diluted (in shares)		52,597,582	52,504,196		52,591,545

[1] Adjusted as a result of the adoption of certain accounting pronouncements beginning on January 1, 2017. See Note 1, "Description of Business and Summaryof Significant Accounting Policies - Recently Adopted Accounting Pronouncements," for details of these adjustments.

[2] Net of tax (benefit) expense of $(0.4) million, $1.1 million and $(5.1) million for 2017, 2016 and 2015, respectively.

[3] Net of tax expense of $1.6 million for 2017, and $1.3 million for each of 2016 and 2015.

[4] This amount is included in the computation of net periodic benefit (income) costs. See Note 14, "Pension and Post-Retirement Benefits," for additional information regarding net periodic benefit (income) costs.

[5] Net of tax benefit of $0.3 million, $4.1 million and $3.3 million for 2017, 2016 and 2015, respectively.

[6] of tax expense of $3.7 million for 2015.

[7] Net of tax expense of $0.3 million for 2017.

[8] Net of tax benefit of $1.4 million for 2017.

[9] Net of tax expense (benefit) of $0.5 million and $(1.0) million for 2016 and 2015, respectively.

[10] See Note 17, "Accumulated Other Comprehensive Loss," regarding the changes in the accumulated balances for each component of other comprehensive loss during 2017, 2016 and 2015.