Intangibles - Schedule of Goodwill (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)
Goodwill [Roll Forward]
Beginning balance		$ 1,008,300,000
Additions and adjustments		1,300,000
Disposals		0
Impairments	$ 0	(10,700,000)
Currency translation		(5,300,000)
Ending balance	993,500,000	993,500,000
Accumulated impairments	97,800,000	97,800,000
U.S.
Goodwill [Roll Forward]
Beginning balance		902,300,000
Additions and adjustments		1,300,000
Disposals		0
Impairments		0
Currency translation		0
Ending balance	903,600,000	903,600,000
Accumulated impairments	40,600,000	40,600,000
U.K.
Goodwill [Roll Forward]
Beginning balance		92,100,000
Additions and adjustments		0
Disposals		0
Impairments		0
Currency translation		(2,200,000)
Ending balance	89,900,000	89,900,000
Brazil
Goodwill [Roll Forward]
Beginning balance		13,900,000
Additions and adjustments		0
Disposals		0
Impairments		(10,700,000)
Currency translation		(3,100,000)
Ending balance	0	0
Accumulated impairments	$ 57,200,000	$ 57,200,000