UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2018		Jun. 30, 2017	[1]	Jun. 30, 2018		Jun. 30, 2017	[1]
Income Statement [Abstract]
Net sales		$ 606.8		$ 645.7		$ 1,167.5		$ 1,240.6
Cost of sales		259.6		268.4		502.2		533.9
Gross profit		347.2		377.3		665.3		706.7
Selling, general and administrative expenses		374.6		358.4		746.3		712.2
Acquisition and integration costs		4.6		10.0		8.6		27.5
Restructuring charges and other, net		5.9		3.7		10.0		4.9
Disposal of investment		20.1		0.0		20.1		0.0
Operating (loss) income		(58.0)		5.2		(119.7)		(37.9)
Other expenses:
Interest expense		42.8		36.7		82.7		71.7
Amortization of debt issuance costs		3.0		2.3		5.3		4.5
Foreign currency losses (gains)		20.2		(9.4)		9.6		(13.7)
Miscellaneous, net		0.2		0.8		0.2		1.4
Other expenses		66.2		30.4		97.8		63.9
Loss from continuing operations before income taxes		(124.2)		(25.2)		(217.5)		(101.8)
(Benefit from) provision for income taxes		(2.8)		11.9		(4.4)		(27.0)
Loss from continuing operations, net of taxes		(121.4)		(37.1)		(213.1)		(74.8)
(Loss) income from discontinued operations, net of taxes		(1.1)		0.6		0.3		0.9
Net loss		(122.5)		(36.5)		(212.8)		(73.9)
Other comprehensive (loss) income:
Foreign currency translation adjustments, net of tax	[2]	(4.9)		1.8		(7.4)		6.5
Amortization of pension related costs, net of tax	[3],[4]	2.1		2.1		4.2		4.1
Pension curtailment gain, net of tax		0.0	[5]	0.0	[5]	0.0	[6]	2.6	[6]
Reclassification into earnings of accumulated losses from the de-designated 2013 Interest Rate Swap, net of tax	[5]	0.1		0.6		0.7	[1]	1.2
Other comprehensive income, net		(2.7)		4.5		(2.5)	[7]	14.4
Total comprehensive loss		$ (125.2)		$ (32.0)		$ (215.3)		$ (59.5)
Basic (loss) earnings per common share:
Continuing operations (usd per share)		$ (2.30)		$ (0.70)		$ (4.04)		$ (1.42)
Discontinued operations (usd per share)		(0.02)		0.00		0.01		0.01
Net (loss) income (usd per share)		(2.32)		(0.70)		(4.03)		(1.41)
Diluted (loss) earnings per common share:
Continuing operations (usd per share)		(2.30)		(0.70)		(4.04)		(1.42)
Discontinued operations (usd per share)		(0.02)		0.00		0.01		0.01
Net (loss) income (usd per share)		$ (2.32)		$ (0.70)		$ (4.03)		$ (1.41)
Weighted average number of common shares outstanding:
Basic (in shares)		52,823,326		53,096,935		52,748,913		52,569,473
Diluted (in shares)		52,823,326		53,096,935		52,748,913		52,569,473

[1] Adjusted as a result of the adoption of certain accounting pronouncements during 2018. See Note 1, "Description of Business and Summary of Significant Accounting Policies - Recently Adopted Accounting Pronouncements," for details of these adjustments.

[2] Net of tax expense of nil and $0.7 million for the three months ended June 30, 2018 and 2017, respectively, and nil and $1.7 million for the six months ended June 30, 2018 and 2017, respectively.

[3] Net of tax expense of $0.2 million and $0.5 million for the three months ended June 30, 2018 and 2017, respectively, and $0.5 million and $0.9 million for the six months ended June 30, 2018 and 2017, respectively.

[4] This amount is included in the computation of net periodic benefit costs (income). See Note 10, "Pension and Post-Retirement Benefits," for additional information regarding net periodic benefit costs (income).

[5] Net of tax benefit of a $0.3 million for each of the three months ended June 30, 2018 and 2017, and $0.5 million and $0.7 million for the six months ended June 30, 2018 and 2017, respectively.

[6] Net of tax expense of $0.3 million for the six months ended June 30, 2017.

[7] See Note 12, "Accumulated Other Comprehensive Loss," regarding the changes in the accumulated balances for each component of other comprehensive loss during the six months ended June 30, 2018.