XML 50 R38.htm IDEA: XBRL DOCUMENT v3.19.3
Related Party Transactions (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 24, 2019
USD ($)
restaurant
Sep. 25, 2018
USD ($)
restaurant
Jun. 26, 2018
USD ($)
Sep. 24, 2019
USD ($)
restaurant
Sep. 25, 2018
USD ($)
restaurant
Related Party Transactions          
Fees received from franchise and license restaurants | $       $ 1.6 $ 1.6
Franchise          
Related Party Transactions          
Number of restaurants 95 91   95 91
Officers, directors and shareholders | Majority-owned          
Related Party Transactions          
Number of restaurants 1     1  
Officers, directors and shareholders | Franchise          
Related Party Transactions          
Number of restaurants 9 10   9 10
Fees received from franchise and license restaurants | $ $ 0.5 $ 0.5      
Number of restaurants for which the entity is contingently liable on the lease       2  
Founder | Personal contribution          
Related Party Transactions          
Transactions with related party | $     $ 1.0