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Stock-Based Compensation (Tables) | 12 Months Ended
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Jan. 01, 2022
Stock-Based Compensation |
Summary of assumptions used to estimate fair values for ESPP | The fair values estimated from the Black-Scholes option-pricing model for ESPP shares granted were calculated using the following assumptions: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended |
​ | ​ | January 1, | ​ | January 2, | ​ | December 28, | ​
Employee Stock Purchase Plan |  | 2022 |  | 2021 |  | 2019 | ​
Expected volatility | ​ | 42 | % | 67 | % | 37 | %
Risk-free interest rate % | ​ | 0.05 | % | 0.15 | % | 1.6 | %
Expected term (in months) | ​ | 9 | ​ | 9 | ​ | 9 | ​
Dividend yield | ​ | — | ​ | — | ​ | — | ​
Summary of assumptions used to estimate fair values for MSUs | The fair values estimated from the Monte Carlo simulation for MSUs were calculated using the following assumptions: ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended |
​ | ​ | January 2, | ​ | December 28, | ​
MSUs |  | 2021 |  | 2019 |
Expected volatility |  | 36 | % | 31 | %
Risk-free interest rate % |  | 1.3 | % | 2.4 | %
Expected term (in years) |  | 2.9 | ​ | 2.9 | ​
Dividend yield |  | — | ​ | — | ​
Summary of stock-based compensation activity, options | A summary of stock-based compensation activity with respect to fiscal 2021 follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​ | Weighted-Average | ​ | Aggregate
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Intrinsic
​ | ​ | Shares | ​ | Exercise | ​ | Contractual Term | ​ | Value
Stock Options |  | (000s) |  | Price |  | (In Years) |  | (000s)
Outstanding at January 2, 2021 |  | 127 | ​ | $ | 39.16 |  | 5.11 | ​ | $ | 11,232
Outstanding at January 1, 2022 |  | 118 | ​ | $ | 38.80 |  | 4.12 | ​ | $ | 19,825
Vested at January 1, 2022 and expected to vest |  | 118 | ​ | $ | 38.80 |  | 4.12 | ​ | $ | 19,825
Exercisable at January 1, 2022 |  | 118 | ​ | $ | 38.80 |  | 4.12 | ​ | $ | 19,825
Summary of stock-based compensation activity, RSAs and RSUs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ | Weighted- | ​ | Weighted-Average | ​ | Aggregate
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Intrinsic
​ | ​ | Shares | ​ | Grant Date | ​ | Vesting Term | ​ | Value
RSAs and RSUs |  | (000s) |  | Fair Value |  | (In Years) |  | (000s)
Outstanding at January 2, 2021 |  | 1,106 | ​ | $ | 97.07 | ​ | ​ | ​ | ​ | ​
Granted |  | 452 | ​ | $ | 135.28 | ​ | ​ | ​ | ​ | ​
Vested or issued |  | (502) | ​ | $ | 95.04 | ​ | ​ | ​ | ​ | ​
Cancelled or forfeited |  | (225) | ​ | $ | 108.61 | ​ | ​ | ​ | ​ | ​
Outstanding at January 1, 2022 |  | 831 | ​ | $ | 115.72 |  | 1.11 | ​ | $ | 171,476
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Outstanding at January 1, 2022 and expected to vest |  | 770 | ​ | $ | 115.10 |  | 1.11 | ​ | $ | 159,028
Summary of stock-based compensation activity, PSUs and MSUs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- |  | Weighted-Average | ​ | Aggregate
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Intrinsic
​ | ​ | Shares | ​ | Grant Date | ​ | Vesting Term | ​ | Value
PSUs and MSUs |  | (000s) |  | Fair Value |  | (In Years) |  | (000s)
Outstanding at January 2, 2021 |  | 233 |  | $ | 79.80 | ​ | ​ | ​ | ​ | ​
Granted |  | 117 | ​ | $ | 145.11 | ​ | ​ | ​ | ​ | ​
Earned or issued |  | (37) | ​ | $ | 97.19 | ​ | ​ | ​ | ​ | ​
Cancelled or forfeited |  | (67) | ​ | $ | 89.45 | ​ | ​ | ​ | ​ | ​
Outstanding at January 1, 2022 |  | 246 | ​ | $ | 105.58 |  | 1.44 |  | $ | 50,792
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Outstanding at January 1, 2022 and expected to vest |  | 224 |  | $ | 102.01 |  | 1.44 |  | $ | 46,297
Summary of weighted average fair value at the date of grant | The following summarizes the Company’s weighted average fair value at the date of grant: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended
​ | ​ | January 1, | ​ | January 2, | ​ | December 28,
​ |  | 2022 |  | 2021 |  | 2019
Per grant of RSAs and RSUs | ​ | $ | 135.28 |  | $ | 100.27 |  | $ | 89.35
Per grant of PSUs and MSUs | ​ | $ | 145.11 |  | $ | 98.58 |  | $ | 85.79
Summary of stock-based payment and stock option values | The following summarizes the Company’s stock-based payment and stock option values (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended
​ | ​ | January 1, | ​ | January 2, | ​ | December 28,
​ |  | 2022 |  | 2021 |  | 2019
Intrinsic value of stock options exercised | ​ | $ | 986 | ​ | $ | 558 | ​ | $ | —
Intrinsic value of RSUs that vested | ​ | $ | 76,654 | ​ | $ | 48,534 | ​ | $ | 57,693
Grant date fair value of RSUs that vested | ​ | $ | 47,726 | ​ | $ | 37,477 | ​ | $ | 40,434
Intrinsic value of PSUs and MSUs that vested | ​ | $ | 5,231 | ​ | $ | 8,545 | ​ | $ | 3,649
Grant date fair value of PSUs and MSUs that vested | ​ | $ | 3,562 | ​ | $ | 6,302 | ​ | $ | 1,461
Schedule of stock-based compensation costs recognized in the Condensed Consolidated Statements of Income | The following table presents details of stock-based compensation costs recognized in the Consolidated Statements of Income (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended
​ | ​ | January 1, | ​ | January 2, | ​ | December 28,
​ |  | 2022 |  | 2021 |  | 2019
Cost of revenues | ​ | $ | 964 | ​ | $ | 970 | ​ | $ | 790
Research and development | ​ |  | 24,986 | ​ |  | 23,359 | ​ |  | 19,996
Selling, general and administrative | ​ |  | 30,892 | ​ |  | 25,125 | ​ |  | 23,548
​ | ​ |  | 56,842 | ​ |  | 49,454 | ​ |  | 44,334
Income tax benefit | ​ |  | (954) | ​ |  | (3,694) | ​ |  | (2,584)
Share-based compensation – continuing operations | ​ | ​ | 55,888 | ​ | ​ | 45,760 | ​ | ​ | 41,750
Share-based compensation – discontinued operations, net | ​ | ​ | (2,007) | ​ | ​ | 10,715 | ​ | ​ | 10,574
Total | ​ | $ | 53,881 | ​ | $ | 56,475 | ​ | $ | 52,324
Summary of shares reserved of common stock for future issuance | As of January 1, 2022, the Company had reserved shares of common stock for future issuance as follows (in thousands): ​
​ | ​ | ​
2009 Stock Incentive Plan |  | 2,946
2009 Employee Stock Purchase Plan |  | 1,254
Total shares reserved |  | 4,200

X
- Definition Disclosure of the number and weighted-average grant date fair value for performance share units and market based-stock units that were outstanding at the beginning and end of the year, and the number of market-based stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of number of shares reserved of common stock for future issuance under stock-based compensation arrangements. + References No definition available. + Details
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- Definition Tabular disclosure of intrinsic values and grant date fair values of share-based payment awards. + References No definition available. + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of equity instruments other than options, including, but not limited to: (a) expected term of similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References No definition available. + Details
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- Definition Tabular disclosure of the weighted-average grant-date fair value of restricted stock awards, restricted stock units and market stock units granted during the year. + References No definition available. + Details
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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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