Restructuring Costs - Schedule of Changes in Restructuring Reserve (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	$ 46.1
Severance costs	5.3
Costs paid or utilized	(32.5)
Balance, end of period	18.9
Reportable segments | Americas
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	1.9	[1]
Severance costs	5.3	[1]
Costs paid or utilized	(4.2)	[1]
Balance, end of period	3.0	[1]
Reportable segments | Southern Europe
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	3.5	[2]
Severance costs	0.0	[2]
Costs paid or utilized	(2.3)	[2]
Balance, end of period	1.2	[2]
Reportable segments | Northern Europe
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	40.7
Severance costs	0.0
Costs paid or utilized	(26.0)
Balance, end of period	14.7
Reportable segments | APME
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	0.0
Severance costs	0.0
Costs paid or utilized	0.0
Balance, end of period	0.0
Corporate
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	0.0
Severance costs	0.0
Costs paid or utilized	0.0
Balance, end of period	$ 0.0

[1] Balances related to the United States were $1.4 and $0.4 as of December 31, 2020 and September 30, 2021, respectively.

[2] Balances related to France were $0.6 as of both December 31, 2020 and September 30, 2021. Balances related to Italy were $1.4 and $0.5 as of December 31, 2020 and September 30, 2021, respectively.