Goodwill and Other Intangible Assets - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill acquired	$ 29.4	$ 708.7
Year to date amortization expense	$ 72.0	$ 68.9	$ 34.9
Percent of finite lived intangible assets under amortization method	0.75
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Amortization expense, 2020	$ 74.3
Amortization expense, 2021	72.3
Amortization expense, 2022	67.2
Amortization expense, 2023	62.4
Amortization expense, 2024	$ 57.0