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Goodwill and Intangible Assets - Summary of Changes in Goodwill (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 29, 2018
Sep. 28, 2018
Goodwill [Roll Forward]    
Net balance as of December 31, 2017   $ 916.9
Addition due to business combination   18.9
Goodwill impairment $ (3.3) (3.3)
Net balance as of September 28, 2018   $ 932.5