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Share-Based Compensation (Tables) | 12 Months Ended
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Jan. 26, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of allocation of stock-based compensation | re-tax share-based compensation was included in the Statements of Income for fiscal years 2020, 2019 and 2018 as follows:
| Fiscal Year Ended
(in thousands) | January 26, 2020 |  | January 27, 2019 |  | January 28, 2018
Net sales offset (Warrant) | $ | — |  |  | $ | 21,501 |  |  | $ | 16,219 |
Cost of sales | 1,928 |  |  | 1,639 |  |  | 1,477 |
Selling, general and administrative | 38,556 |  |  | 35,430 |  |  | 24,266 |
Product development and engineering | 11,565 |  |  | 8,267 |  |  | 8,089 |
Share-based compensation | $ | 52,049 |  |  | $ | 66,837 |  |  | $ | 50,051 |
Net change in share-based compensation capitalized into inventory | $ | — |  |  | $ | — |  |  | $ | (414 | )
Summary of the activity for stock option awards | The following table summarizes the activity for stock options for fiscal year 2020:
(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)
Balance at January 27, 2019 | 877 |  |  | $ | 29.03 |  |  | $ | 18,226 |  |  | 472 |  |
Granted | — |  |  | — |  |  |  |  |  |  |
Exercised | (242 | ) |  | 25.22 |  |  | 5,877 |  |  |  |  |
Forfeited | (11 | ) |  | 41.71 |  |  |  |  |  |  |
Balance at January 26, 2020 | 624 |  |  | $ | 30.26 |  |  | $ | 13,895 |  |  | 428 |  |
Exercisable at January 26, 2020 | 428 |  |  | $ | 25.26 |  |  | $ | 11,661 |  |  |  |  | 2.1
Vested and expected to vest after January 26, 2020 | 624 |  |  | $ | 30.26 |  |  | $ | 13,895 |  |  |  |  | 2.7
Summary of unvested stock option awards | The following table summarizes information regarding unvested stock option awards at January 26, 2020:
(in thousands, except per share data) | Number of Shares |  | Weighted-Average Exercise Price (per share) |  | Weighted-Average Grant Date Fair Value (per share)
Balance at January 27, 2019 | 400 |  |  | $ | 34.52 |  |  | $ | 10.07 |
Granted | — |  |  | — |  |  | — |
Vested | (193 | ) |  | 27.40 |  |  | 7.86 |
Forfeited | (11 | ) |  | 42.44 |  |  | 12.50 |
Balance at January 26, 2020 | 196 |  |  | $ | 41.14 |  |  | $ | 12.13 |
Summary of the activity for performance unit awards | The following table summarizes the activity for TSR Awards for fiscal year 2020:
(in thousands, except per share data) | Total Units |  | Weighted-Average Grant Date Fair Value (per share)
Balance at January 27, 2019 | 203 |  |  | $ | 37.51 |
Granted | 266 |  |  | 59.49 |
Vested | (79 | ) |  | 36.30 |
Cancelled/Forfeited (1) | (133 | ) |  | 48.94 |
Balance at January 26, 2020 | 257 |  |  | $ | 54.61 |
(1) Represents cancellations due to awards vesting below the TSR target
Summary of activity for restricted stock units | The following table summarizes the activity for the non-employee directors restricted stock units for the fiscal year ended January 26, 2020:
(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)
Balance at January 27, 2019 | 26 |  |  | 12 |  |  | 14 |  |  | $ | 48.84 |
Granted | 26 |  |  | 12 |  |  | 14 |  |  | 50.55 |
Vested | (26 | ) |  | (12 | ) |  | (14 | ) |  | 48.84 |
Forfeited | — |  |  | — |  |  | — |  |  | — |
Balance at January 26, 2020 | 26 |  |  | 12 |  |  | 14 |  |  | $ | 50.55 |
Summary of the status of non-vested restricted stock unit awards and changes during the year | The following table is a summary of the status of non-vested restricted stock unit awards as of January 26, 2020, and changes during the year.
| Restricted Stock Units, Stock Grants and Stock Units
(in thousands, except per share data) | Shares |  | Weighted-Average Grant Date Fair Value (per share)
Nonvested at January 27, 2019 | 2,204 |  |  | $ | 36.62 |
Granted | 921 |  |  | 47.88 |
Vested | (892 | ) |  | 31.62 |
Forfeited | (131 | ) |  | 40.55 |
Nonvested at January 26, 2020 | 2,102 |  |  | $ | 43.43 |

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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=116856206&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=115993241&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=116856206&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + 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=116856206&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=116856206&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=116856206&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement. + 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 (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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