Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Dec. 31, 2020

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Summary of the Changes in Accumulated Other Comprehensive Loss (Net of Tax)

A summary of the changes in Accumulated other comprehensive loss (net of tax) for the three years ended December 31, 2020 is provided below (in millions):

(Debit) credit	Cash Flow Hedge (Loss) Gain		Unrealized Gain (Loss) on Available-for-Sale Securities		Pension and Post Retirement Benefit Plan Adjustment		Cumulative Translation Adjustment		Total
BALANCE AT DECEMBER 31, 2017	$	(0.8)	$	(0.6)	$	(176.5)	$	(91.9)	$	(269.8)
Other comprehensive income (loss) before Reclassifications	1.9		(1.4)		10.4		(33.9)		(23.0)
Amounts reclassified from accumulated other comprehensive loss	(0.3)		—		7.4		—		7.1
Current period other comprehensive income (loss)	1.6		(1.4)		17.8		(33.9)		(15.9)
BALANCE AT DECEMBER 31, 2018	$	0.8	$	(2.0)	$	(158.7)	$	(125.8)	$	(285.7)
Other comprehensive income (loss) before Reclassifications	(0.8)		0.8		(21.5)		3.7		(17.8)
Amounts reclassified from accumulated other comprehensive loss	(0.5)		1.8		7.0		(7.7)		0.6
Current period other comprehensive income (loss)	(1.3)		2.6		(14.5)		(4.0)		(17.2)
Reclassification of Stranded Tax Effects	—		—		(30.0)		—		(30.0)
BALANCE AT DECEMBER 31, 2019	$	(0.5)	$	0.6	$	(203.2)	$	(129.8)	$	(332.9)
Other comprehensive income (loss) before Reclassifications	0.4		0.4		(21.6)		12.3		(8.5)
Amounts reclassified from accumulated other comprehensive loss	(0.6)		—		12.8		—		12.2
Current period other comprehensive income (loss)	(0.2)		0.4		(8.8)		12.3		3.7
BALANCE AT DECEMBER 31, 2020	$	(0.7)	$	1.0	$	(212.0)	$	(117.5)	$	(329.2)

Summary of the Gain (Loss) Reclassifications Out of Accumulated Other Comprehensive Loss

A summary of the gain (loss) reclassifications out of Accumulated other comprehensive loss for the two years ended December 31 is provided below (in millions):

Details about Accumulated Other Comprehensive Loss Components	2020			2019			Location of Gain (Loss) Reclassified into Income
Cash flow hedges gain (loss):
Forward exchange contracts	$	0.3		$	0.3		Net Sales
	0.5			0.4			Cost of goods sold
	0.8			0.7			Total before tax
	(0.2)			(0.2)			Tax (expense) benefit
	$	0.6		$	0.5		Gain (loss) net of tax
Amortization of defined benefit pension and post retirement benefit items:
Prior-service credits	$	0.2	(a)	$	0.7	(a)
Actuarial gains/(losses)	(9.7)		(a)	(9.7)		(a)
Settlement and curtailment losses	(7.5)		(a)	(0.3)		(a)
	(17.0)			(9.3)			Total before tax
	4.2			2.3			Tax benefit (expense)
	$	(12.8)		$	(7.0)		(Loss) gain net of tax
Reclassification of gains (losses) on available-for-sale securities	$	—		$	(1.8)		Other expense, net
	—			—			Tax benefit (expense)
	$	—		$	(1.8)		(Loss) gain net of tax
Reclassification of currency translation gain	$	—		$	7.7		Gain on disposition of business (Note 3)
	—			—			Tax benefit (expense)
	$	—		$	7.7		Gain (loss) net of tax
Gains (losses) reclassified into earnings	$	(12.2)		$	(0.6)		(Loss) gain net of tax

(a)These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (see Note 11 — Retirement Benefits for additional details).