Annual report [Section 13 and 15(d), not S-K Item 405]

Stockholders' Equity - Narrative (Details)

v3.25.4
Stockholders' Equity - Narrative (Details)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 25, 2025
USD ($)
class
vote
$ / shares
shares
Dec. 26, 2024
USD ($)
$ / shares
shares
Dec. 28, 2023
USD ($)
$ / shares
shares
Conversion of Stock [Line Items]      
Number of classes of common stock | class 1    
Share-based payment arrangement, expense $ 29.5 $ 33.7 $ 27.2
Fair value of stock options vested 0.5 1.9 3.0
Aggregate instrinsic value $ 9.4 $ 42.2 $ 37.9
Purchase price, as a percentage of fair market value 90.00%    
Fair market value measurement period (in months) 6 months    
Common stock, par value (in dollars per share) | $ / shares $ 0.001 $ 0.001  
Shares issued under employee stock plan (in shares) | shares 78,187 58,665 83,686
Stock options      
Conversion of Stock [Line Items]      
Contractual term (in years) 10 years    
Number of options granted in period | shares 0 0 0
Unrecognized compensation cost amount $ 0.0    
Stock options | Minimum      
Conversion of Stock [Line Items]      
Vesting period (in years) 1 year    
Stock options | Maximum      
Conversion of Stock [Line Items]      
Vesting period (in years) 5 years    
Performance-based      
Conversion of Stock [Line Items]      
Vesting period (in years) 3 years    
Granted (in dollars per share) | $ / shares $ 91.73    
Granted (in shares) | shares 101,483    
Performance-based | Minimum      
Conversion of Stock [Line Items]      
Vesting rights (as a percent) 0.00%    
Performance-based | Maximum      
Conversion of Stock [Line Items]      
Vesting rights (as a percent) 200.00%    
Total shareholder return      
Conversion of Stock [Line Items]      
Vesting period (in years) 3 years    
Granted (in dollars per share) | $ / shares $ 0    
Granted (in shares) | shares 0    
Total shareholder return | Minimum      
Conversion of Stock [Line Items]      
Vesting rights (as a percent) 0.00%    
Total shareholder return | Maximum      
Conversion of Stock [Line Items]      
Vesting rights (as a percent) 150.00%    
Restricted stock units      
Conversion of Stock [Line Items]      
Unrecognized compensation cost amount $ 40.1    
Unrecognized compensation cost period for recognition 1 year 9 months 18 days    
Granted (in dollars per share) | $ / shares $ 93.92 $ 115.08 $ 91.86
Fair value of restricted stock awards vested $ 26.7 $ 26.7 $ 13.7
Restricted stock units | Non Employee Directors      
Conversion of Stock [Line Items]      
Requisite service period 1 year    
Restricted stock units | Minimum | Employees And Executive Officers      
Conversion of Stock [Line Items]      
Requisite service period 2 years    
Restricted stock units | Maximum | Employees And Executive Officers      
Conversion of Stock [Line Items]      
Requisite service period 4 years    
Restricted Stock Award      
Conversion of Stock [Line Items]      
Unrecognized compensation cost amount $ 0.0    
Fair value of restricted stock awards vested $ 0.3 $ 12.8 $ 19.2
Granted (in shares) | shares 0 0 0
Restricted Stock Award | Minimum      
Conversion of Stock [Line Items]      
Requisite service period 3 years    
Restricted Stock Award | Maximum      
Conversion of Stock [Line Items]      
Requisite service period 4 years    
Stock Incentive Plan 2017      
Conversion of Stock [Line Items]      
Shares of stock authorized under the plan (in shares) | shares 9,000,000    
Shares available for grant (in shares) | shares 4,679,225 4,952,065  
Employee Stock Purchase Plan      
Conversion of Stock [Line Items]      
Share-based payment arrangement, expense $ 1.3 $ 1.4 $ 1.3
Common Class A      
Conversion of Stock [Line Items]      
Votes per share held | vote 1    
Common Class A | Employee Stock Purchase Plan      
Conversion of Stock [Line Items]      
Shares of stock authorized under the plan (in shares) | shares 1,500,000    
Common stock, par value (in dollars per share) | $ / shares $ 0.001