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STOCK-BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Financial Statement Line Items in Which Stock-based Compensation is Reflected The following table provides stock-based compensation by the financial statement line item in which it is reflected:
Fiscal Year
202220212020
(in thousands)
Cost of revenue$14,853 $13,087 $10,636 
Selling, general and administrative58,764 58,387 45,705 
Stock-based compensation, before income taxes73,617 71,474 56,341 
Provision for income taxes(10,969)(10,299)(8,130)
Stock-based compensation, net of income taxes$62,648 $61,175 $48,211 
Summary of Stock Option Activity
The following table summarizes stock option activity under the Company’s stock-based compensation plans:
Number of sharesWeighted Average
Exercise Price
Weighted Average
Remaining
Contractual Life
Aggregate
Intrinsic
Value
(in thousands)(in years)(in thousands)
Options outstanding as of December 25, 2021917 $175.24   
Options granted214 $243.05   
Options exercised(219)$114.88   
Options canceled(30)$241.35   
Options outstanding as of December 31, 2022882 $204.41 5.7$34,579 
Options exercisable as of December 31, 2022369 $169.27 3.5$23,443 
Options expected to vest as of December 31, 2022514 $229.64 7.3$11,136 
Weighted-average Assumptions
The fair value of stock options granted was estimated using the Black-Scholes option-pricing model with the following weighted-average assumptions:
Fiscal Year
202220212020
Expected life (in years)6.06.06.0
Expected volatility33 %32 %30 %
Risk-free interest rate2.7 %1.0 %0.4 %
Expected dividend yield%%%
Summary of Restricted Stock and Restricted Stock Unit Activity
The following table summarizes the restricted stock units activity for fiscal year 2022:
Restricted Stock UnitsWeighted Average Grant Date Fair Value
(in thousands)
December 25, 2021373 $197.45 
Granted158 $245.11 
Vested(141)$176.04 
Canceled(26)$243.42 
December 31, 2022364 $226.43 
Information about PSUs and Related Weighted-Average Assumptions
The Company utilizes a Monte Carlo simulation valuation model to value these awards. Information pertaining to the Company’s PSUs and the related estimated weighted-average assumptions used to calculate their fair value were as follows:
Fiscal Year
202220212020
(shares in thousands)
PSUs granted134 64 98 
Weighted average grant date fair value$210.42 $407.76 $209.67 
Key assumptions:
Expected volatility 39 %37 %35 %
Risk-free interest rate2.6 %0.2 %0.2 %
Expected dividend yield%%%
Total shareholder return of 20-trading day average stock price on grant date
(32.7)%39.9 %21.7 %