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Stock-Based Compensation (Details) - Restricted stock units (RSUs) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
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Apr. 03, 2021 | Mar. 28, 2020
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |
Number of shares granted in period (in shares) | 173,000 | 188,000
Weighted-average grant-date fair value (in usd per share) | $ 175.12 |
Recognized stock-based compensation costs | $ 5,968 | $ 5,041
Recognized stock-based compensation costs, net of tax | 4,416 | $ 3,731
Pre-tax unrecognized compensation expense, net of forfeitures | $ 35,778 |
Recognized expense over a weighted-average period (years) | 2 years 14 days |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + 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=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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