XML 50 R48.htm IDEA: XBRL DOCUMENT v3.19.3
Other Current Liabilities - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 27, 2019
Sep. 28, 2018
Dec. 28, 2018
Accrued Liabilities, Current [Abstract]      
Customer advances and deferred revenue $ 46.7   $ 40.0
Contract with Customer, Liability, Revenue Recognized $ 34.9 $ 21.8