XML 89 R58.htm IDEA: XBRL DOCUMENT v3.20.2
Acquisitions - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 28, 2019
Sep. 28, 2019
Dec. 31, 2019
Sep. 26, 2020
Mar. 30, 2019
Business Acquisition          
Goodwill     $ 602,500,000 $ 613,772,000  
Acquisition-related costs $ 0 $ 400,000      
VPI          
Business Acquisition          
Goodwill     $ 23,500,000   $ 26,553,000
Intangible assets useful life (years)     8 years    
Additional acquisition costs     $ 7,100,000