Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 27, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 1,157,800,000	$ 1,157,800,000	$ 1,139,500,000
Foreign currency translation and other		19,600,000		$ 18,300,000
Impairment of goodwill	$ (85,300,000)	(85,300,000)	0	0
Goodwill, end of period		$ 1,092,100,000	$ 1,157,800,000	$ 1,139,500,000