v3.26.1
Common Stock and Earnings (Loss) Per Share - Common and Preferred Stock (Details)
 12 Months Ended
Dec. 27, 2025
vote
$ / shares
shares
Dec. 28, 2024
$ / shares
shares
Class of Stock [Line Items]    
Votes Per Share of Class B Common Stock (in votes) | vote 20  
Conversion ratio (in shares) 1  
Common Class A    
Class of Stock [Line Items]    
Common stock, shares authorized (in shares) 80,000,000 80,000,000
Common stock, par value (in dollars per share) | $ / shares $ 3 $ 3
Common stock, shares issued (in shares) 13,929,691 13,997,446
Common Class B    
Class of Stock [Line Items]    
Common stock, shares authorized (in shares) 16,000,000 16,000,000
Common stock, par value (in dollars per share) | $ / shares $ 3 $ 3
Common stock, shares issued (in shares) 1,240,285 1,249,302
Common Class C    
Class of Stock [Line Items]    
Common stock, shares authorized (in shares) 200,000,000  
Common stock, par value (in dollars per share) | $ / shares $ 3  
Common stock, shares issued (in shares) 0  
Preferred Stock    
Class of Stock [Line Items]    
Common stock, shares authorized (in shares) 16,000,000