Annual report pursuant to Section 13 and 15(d)

Acquisitions and Investments in Joint Ventures - Investments and Equity Method Investments, Additional Information (Details)

v3.20.2
Acquisitions and Investments in Joint Ventures - Investments and Equity Method Investments, Additional Information (Details)
$ in Thousands
12 Months Ended
Sep. 26, 2020
USD ($)
venture
Sep. 28, 2019
USD ($)
venture
Sep. 29, 2018
USD ($)
venture
Schedule of Equity Method Investments [Line Items]      
Investments $ 4,400 $ 2,000  
Number of ventures | venture 2 2 3
Investments in business $ 4,439 $ 2,010 $ 9,048
Minimum      
Schedule of Equity Method Investments [Line Items]      
Percent interest in ventures 3.00%   13.00%
Maximum      
Schedule of Equity Method Investments [Line Items]      
Percent interest in ventures 30.00% 7.00% 20.00%