XML 52 R28.htm IDEA: XBRL DOCUMENT v3.20.2
Basis of Presentation and Significant Accounting Policies (Details)
3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Transferred over Time        
Disaggregation of Revenue [Line Items]        
Percentage of revenue recognized over time 25.00% 17.00% 15.00% 24.00%