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Stock-Based Compensation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 03, 2021 | Jul. 04, 2020 | Jul. 03, 2021 | Jul. 04, 2020
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Stock-based compensation expense recognized |  | $ 828 | $ 875 | $ 4,948 | $ 3,873
Unrecognized Compensation Cost |  | 5,057 |  | 5,057 |
Restricted Stock Units [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Stock-based compensation expense recognized |  | 828 | 875 | 4,739 | 3,658
Unrecognized Compensation Cost |  | $ 5,057 |  | $ 5,057 |
Weighted Average Remaining Amortization Periods |  |  |  | 1 year |
Number of units [Abstract] |  |  |  |  |
Outstanding (in shares) |  |  |  | 793 |
Granted (in shares) |  |  |  | 319 |
Vested (in shares) | [1] |  |  | (235) |
Cancelled or forfeited (in shares) |  |  |  | 0 |
Outstanding (in shares) |  | 877 |  | 877 |
Expected to vest (in shares) |  | 877 |  | 877 |
Weighted Average Grant-date Fair Value per Unit [Abstract] |  |  |  |  |
Outstanding (in dollars per share) |  |  |  | $ 18.90 |
Granted (in dollars per share) |  |  |  | 22.07 |
Vested (in dollars per share) | [1] |  |  | 18.79 |
Cancelled or forfeited (in dollars per share) |  |  |  | 0 |
Outstanding (in dollars per share) |  | $ 20.08 |  | $ 20.08 |
Phantom Stock Units [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Stock-based compensation expense recognized |  | $ 0 | $ 0 | $ 209 | $ 215
Unrecognized Compensation Cost |  | $ 0 |  | $ 0 |
Number of units [Abstract] |  |  |  |  |
Outstanding (in shares) |  |  |  | 198 |
Granted (in shares) |  |  |  | 10 |
Dividend equivalents issued (in shares) |  |  |  | 2 |
Outstanding (in shares) |  | 210 |  | 210 |
Weighted Average Grant-date Fair Value per Unit [Abstract] |  |  |  |  |
Granted (in dollars per share) |  |  |  | $ 20.89 |
Scheduled to Vest January 1, 2022 [Member] | Performance Vested Restricted Stock Units [Member] |  |  |  |  |
Number of units [Abstract] |  |  |  |  |
Outstanding (in shares) |  | 174 |  | 174 |
Expected to vest (in shares) |  | 174 |  | 174 |
Not expected to vest (in shares) |  | 0 |  | 0 |
Scheduled to Vest January 1, 2023 [Member] | Performance Vested Restricted Stock Units [Member] |  |  |  |  |
Number of units [Abstract] |  |  |  |  |
Outstanding (in shares) |  | 152 |  | 152 |
Expected to vest (in shares) |  | 152 |  | 152 |
Not expected to vest (in shares) |  | 0 |  | 0 |
Scheduled to Vest January 1, 2024 [Member] | Performance Vested Restricted Stock Units [Member] |  |  |  |  |
Number of units [Abstract] |  |  |  |  |
Outstanding (in shares) |  | 165 |  | 165 |
Expected to vest (in shares) |  | 165 |  | 165 |
Not expected to vest (in shares) |  | 0 |  | 0 |
[1] | The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements

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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + 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)(3) -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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