XML 68 R53.htm IDEA: XBRL DOCUMENT v3.20.4
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)
$ in Thousands
12 Months Ended
Dec. 26, 2020
USD ($)
segment
Dec. 28, 2019
USD ($)
Dec. 29, 2018
USD ($)
Cash overdrafts      
Cash book overdrafts $ 16,979 $ 13,971  
Segments      
Number of reportable segments | segment 4    
Maximum percentage of sales of other businesses and activities to consolidated sales as basis for aggregation 10.00%    
Fiscal Year      
Length of fiscal year, 53 weeks   371 days  
Length of fiscal year 2020, 2019, 2018 364 days 364 days 364 days
Accounts receivable      
Allowance for doubtful accounts $ 15,952    
Research and Development [Abstract]      
Research and development expense $ 21,400 $ 13,900 $ 11,500
Minimum      
Principles of Consolidation      
Equity method investment in affiliates, ownership percentage 20.00%    
Maximum      
Principles of Consolidation      
Equity method investment in affiliates, ownership percentage 50.00%    
Cost method investment in affiliates, ownership percentage 20.00%