Annual report pursuant to Section 13 and 15(d)

Fixed Assets (Details)

v3.10.0.1
Fixed Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 27, 2018
Dec. 28, 2017
Dec. 29, 2016
Property, Plant and Equipment [Line Items]      
Fixed assets, at cost $ 480,049 $ 325,658  
Less: accumulated depreciation and amortization 151,683 104,706  
Fixed assets, net 328,366 220,952  
Depreciation and amortization 50,478 36,255 $ 27,459
Furniture, fixtures and equipment      
Property, Plant and Equipment [Line Items]      
Fixed assets, at cost 174,663 126,821  
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Fixed assets, at cost 216,461 141,174  
Computer software and hardware      
Property, Plant and Equipment [Line Items]      
Fixed assets, at cost 83,628 52,687  
Land [Member]      
Property, Plant and Equipment [Line Items]      
Fixed assets, at cost $ 5,297 $ 4,976