Goodwill and Other Intangible Assets - Fair Value of Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Aug. 06, 2021	May 01, 2021	Jan. 01, 2021	Jul. 02, 2020	Apr. 07, 2020	Dec. 03, 2018
Finite-Lived Intangible Assets [Line Items]
Goodwill and intangible assets acquired							$ 59.4
NSM
Finite-Lived Intangible Assets [Line Items]
Goodwill and intangible assets acquired	$ 187.4
Kingsbridge | NSM
Finite-Lived Intangible Assets [Line Items]
Goodwill and intangible assets acquired						$ 131.7
JC Taylor | NSM
Finite-Lived Intangible Assets [Line Items]
Goodwill and intangible assets acquired		$ 55.7
Ark
Finite-Lived Intangible Assets [Line Items]
Goodwill and intangible assets acquired				$ 292.5
Other Operations
Finite-Lived Intangible Assets [Line Items]
Goodwill and intangible assets acquired			$ 31.1		$ 31.1