Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Common Stock and Conversion Features (Details)

v3.10.0.1
Stockholders' Equity - Common Stock and Conversion Features (Details)
12 Months Ended
Dec. 27, 2018
item
Conversion of Stock [Line Items]  
Number of classes of common stock 3
Class A Common Stock  
Conversion of Stock [Line Items]  
Votes per share held 1
Class B Common Stock  
Conversion of Stock [Line Items]  
Votes per share held 0
Class C Common Stock  
Conversion of Stock [Line Items]  
Votes per share held 0