Accumulated Other Comprehensive Loss (Income) (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders' Equity Note [Abstract]

Schedule of accumulated other comprehensive (loss) income

	Foreign Currency Translation Adjustments			Change in Fair Value of Hedging Instrument			Unrecognized Pension Benefit Costs		Accumulated Other Comprehensive (Income)
	(in millions)
Balance at January 1, 2019	$	(78.9	)	$	(0.1	)	$	23.1	$	(55.9	)
Change during the period		2.4			1.5			6.9		10.8
Balance at December 31, 2019		(76.5	)		1.4			30.0		(45.1	)
Change during the period		5.4			1.4			7.2		14.0
Balance at December 31, 2020	$	(71.1	)	$	2.8		$	37.2	$	(31.1	)