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Share Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award      
Number of shares available for future equity awards (in shares) 9,900,000    
Share-based compensation $ 47,649 $ 37,273 $ 31,136
Vesting Term, Minimum 1 year    
Vesting Term, Maximum 3 years    
Payments Related to Tax Withholding for Share-based Compensation $ 14,876 $ 7,799 3,818
Key assumptions in fair value determination      
Stock option expiration date (in years) 10 years    
Stock options, additional disclosures      
Weighted average fair value, Granted (in dollars per share) $ 30.78    
Weighted average remaining contractual term, Outstanding, end of period (in years) 6 years 10 months 24 days 5 years 9 months 18 days  
Weighted average remaining contractual term, Exercisable, end of period (in years) 5 years 4 months 24 days    
Aggregate intrinsic value, Outstanding, beginning of period $ 128,411    
Aggregate intrinsic value, Outstanding, end of period 154,706 $ 128,411  
Aggregate intrinsic value, Exercisable at end of period $ 90,489    
Other information relative to restricted unit activity      
Employee stock purchase program discount percentage 15.00%    
Shared-based Compensation $ 47,600 37,300 31,100
Shared-based Payment Arrangement, Amounts Withheld for Tax Withholding 14,900 $ 7,800 $ 3,800
Employee Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award      
Total unrecognized compensation $ 8,400    
Remaining weighted average expense recognition period (in years) 1 year 9 months 18 days    
Key assumptions in fair value determination      
Expected price volatility, minimum (in hundredths) 2980.00% 2670.00% 2640.00%
Expected price volatility, maximum (in hundredths) 3030.00% 3000.00% 2760.00%
Risk-free interest rate, minimum (in hundredths) 0.30% 0.20% 1.60%
Risk-free interest rate, maximum (in hundredths) 1.00% 1.30% 2.50%
Weighted average expected lives (in years) 4 years 3 months 18 days 4 years 3 months 18 days 4 years 6 months
Forfeiture rate, minimum (in hundredths) 7.00% 7.00% 7.30%
Stock option activity      
Outstanding, beginning of period (in shares) 1,932,410    
Granted (in shares) 248,808    
Exercised (in shares) 974,878    
Canceled (in shares) 38,029    
Outstanding, end of period (in shares) 1,168,311 1,932,410  
Exercisable, end of period (in shares) 598,807    
Stock options, additional disclosures      
Weighted average exercise price, Outstanding, beginning of period (in dollars per share) $ 80.44    
Weighted average exercise price, Granted (in dollars per share) 145.87    
Weighted average exercise price, Exercised (in dollars per share) 77.63    
Weighted average exercise price, Cancelled (in dollars per share) 106.98    
Weighted average exercise price, Outstanding, end of period (in dollars per share) 95.85 $ 80.44  
Weighted average exercise price, Exercisable, end of period (in dollars per share) $ 77.15    
Other information relative to option activity      
Total intrinsic value of stock options exercised $ 90,532 $ 64,395 $ 45,101
Other information relative to restricted unit activity      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value $ 8,478 $ 12,546 $ 16,060
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 1.50% 1.50% 1.40%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 1.50% 1.50% 1.40%
Employee Stock Purchase Plan      
Share-based Compensation Arrangement by Share-based Payment Award      
Share-based compensation $ 1,400 $ 1,400 $ 1,100
Discount rate of employee stock purchase plan (in hundredths) 15.00%    
Shares of common stock issued for employee stock purchase plan (in shares) 48,446 63,704 61,678
Shares of common stock reserved for future issuance under the ESPP (in shares) 11,800,000    
Employee Stock Purchase Plan | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award      
Shares of common stock reserved for future issuance under the ESPP (in shares) 16,000,000    
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award      
Total unrecognized compensation $ 36,400    
Remaining weighted average expense recognition period (in years) 1 year 10 months 24 days    
Shares issued as a result of vested restricted stock units (in shares) 219,723 186,751 103,124
Payments Related to Tax Withholding for Share-based Compensation $ 14,876 $ 7,799 $ 3,818
Restricted stock units      
Restricted, beginning of period (in shares) 595,645    
Granted (in shares) 276,268    
Exercised (in shares) 305,704    
Forfeited (in shares) 42,790    
Restricted, end of period (in shares) 523,419 595,645  
Restricted stock units, additional disclosures      
Weighted average grant date fair value, Restricted, beginning of period (in dollars per share) $ 85.27    
Weighted average grant date fair value, Granted (in dollars per share) 144.52    
Weighted average grant date fair value, Exercised (in dollars per share) 82.51    
Weighted average grant date fair value, Forfeited (in dollars per share) 118.70    
Weighted average grant date fair value, Restricted, end of period (in dollars per share) $ 115.59 $ 85.27  
Other information relative to restricted unit activity      
Total grant date fair value of restricted units vested and exercised $ 25,222 $ 17,935 8,301
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested $ 47,136 $ 23,011 $ 10,623
Shares Paid for Tax Withholding for Share Based Compensation 95,996 81,946 41,786
Performance-Based Restricted Share Units      
Share-based Compensation Arrangement by Share-based Payment Award      
Total unrecognized compensation $ 17,400    
Remaining weighted average expense recognition period (in years) 1 year 10 months 24 days    
Restricted stock units      
Restricted, beginning of period (in shares) 143,268    
Granted (in shares) 60,317    
Exercised (in shares) 10,015    
Forfeited (in shares) 6,552    
Restricted, end of period (in shares) 187,018 143,268  
Restricted stock units, additional disclosures      
Weighted average grant date fair value, Restricted, beginning of period (in dollars per share) $ 87.94    
Weighted average grant date fair value, Granted (in dollars per share) 148.05    
Weighted average grant date fair value, Exercised (in dollars per share) 64.70    
Weighted average grant date fair value, Forfeited (in dollars per share) 104.65    
Weighted average grant date fair value, Restricted, end of period (in dollars per share) $ 107.99 $ 87.94  
Other information relative to restricted unit activity      
Total grant date fair value of restricted units vested and exercised $ 648 $ 1,895 $ 2,035
Total intrinsic value of restricted units vested and exercised $ 1,538 $ 2,826 $ 2,666
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate 31.47%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 0.18%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 1.13%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate 31.47%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 0.18%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 1.13%