Quarterly report pursuant to Section 13 or 15(d)

Revenue - Narrative (Details)

v3.20.2
Revenue - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Remaining performance obligation $ 282.2   $ 282.2  
Revenue recognized included in contract liability balance 8.5 $ 5.1 20.1 $ 15.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-09-27        
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Remaining performance obligation $ 115.5   $ 115.5  
Period of recognition 3 months   3 months