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Share-Based Compensation (Tables)
 12 Months Ended
Jan. 29, 2023
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Summary of allocation of stock-based compensation
Pre-tax share-based compensation, excluding the acceleration of Sierra Wireless equity awards, was included in the Statements of Income for fiscal years 2023, 2022 and 2021 as follows: 
Fiscal Year Ended
(in thousands)January 29, 2023January 30, 2022January 31, 2021
Cost of sales$2,645 $2,901 $2,501 
Selling, general and administrative21,493 32,578 37,000 
Product development and engineering15,110 15,710 13,485 
Share-based compensation$39,248 $51,189 $52,986 
Summary of fair value assumptions
The Company uses the Black-Scholes pricing model to value stock options. The following table summarizes the assumptions used in the Black-Scholes model to determine the fair value of stock options granted in fiscal year 2023:
Fiscal Year Ended
January 29, 2023
Expected term, in years4
Estimated volatility50.5 %
Dividend yield— 
Risk-free interest rate4.0 %
Weighted-average fair value on grant date$12.77 
Summary of the activity for stock option awards
The following table summarizes the activity for stock options for fiscal year 2023:
(in thousands, except per share data)Number
of
Shares		Weighted-
Average
Exercise
Price
(per share)
Aggregate
Intrinsic
Value (1)
Number of
Shares
Exercisable		Weighted-Average
Contractual
Term (years)
Vested and expected to vest at January 30, 2022118 $40.17 $3,253 84
Granted542 29.30 
Exercised(24)25.42 963 
Forfeited(28)42.78 
Vested and expected to vest at January 29, 2023608 $30.96 $2,151 685.4
Vested and exercisable at January 29, 202368 $44.24 $71 2.2
(1) The aggregate intrinsic value of stock options vested and exercisable and vested and expected to vest as of January 29, 2023 is calculated based on the difference between the exercise price and the $33.15 closing price of the Company's common stock as of January 29, 2023.
Summary of unvested stock option awards
The following table summarizes information regarding nonvested stock option awards at January 29, 2023:
(in thousands, except per share data)Number
of
Shares		Weighted-Average
Exercise Price
(per share)		Weighted-Average
Grant Date
Fair Value
(per share)
Nonvested at January 30, 202234 $47.73 $14.45 
Granted542 29.30 12.77 
Vested(33)47.62 14.42 
Forfeited(3)39.12 13.96 
Nonvested at January 29, 2023540 $29.30 $12.77 
Summary of activity for market performance units
The following table is a summary of the status of nonvested restricted stock unit awards as of January 29, 2023, and changes during the year.
Restricted Stock Units, Stock Grants and
Stock Units
(in thousands, except per share data)
SharesWeighted-Average
Grant Date Fair Value
(per share)
Nonvested at January 30, 20221,902 $58.47 
Granted687 41.91 
Vested(738)54.87 
Forfeited(212)60.38 
Nonvested at January 29, 20231,639 $52.91 
The following table summarizes the activity for the non-employee directors restricted stock units for the fiscal year ended January 29, 2023:
(in thousands, except per share data)Total
Units		Units Subject to
Share Settlement		Units Subject to
Cash Settlement		Weighted-Average
Grant Date Fair Value
(per share)
Nonvested at January 30, 202224 12 12 $68.06 
Granted32 16 16 51.97 
Vested(24)(12)(12)68.06 
Nonvested at January 29, 202332 16 16 $51.97 
Share-Based Payment Arrangement, Outstanding Award, Activity, Excluding Option
The following table summarizes the activity for the TSR Awards for fiscal year 2023:
(in thousands, except per share data)Total
Units		Weighted-Average
Grant Date Fair Value
(per share)
Nonvested at January 30, 2022138 $61.61 
Granted125 67.52 
Vested— — 
Cancelled/Forfeited (1)
(175)58.98 
Nonvested at January 29, 202388 $75.18 
(1) Primarily represents cancellations due to awards not meeting the TSR target, as well as forfeitures due to the terminations of two officers.