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Stock-Based Compensation (Tables) | 9 Months Ended
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Oct. 01, 2016
Stock-Based Compensation [Abstract] |
Summary of recognized stock-based compensation expense | The following table summarizes stock-based compensation expense recognized:
|  | Fiscal quarters ended |  |  | Nine fiscal months ended |
|  | October 1, 2016 |  |  | October 3, 2015 |  |  | October 1, 2016 |  |  | October 3, 2015 |
Restricted stock units |  | $ | 1,085 |  |  | $ | 933 |  |  | $ | 3,254 |  |  |  | 2,771 |
Phantom stock units |  |  | - |  |  |  | - |  |  |  | 117 |  |  |  | 141 |
Stock options |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total |  | $ | 1,085 |  |  | $ | 933 |  |  | $ | 3,371 |  |  |  | 2,912 |
Schedule of unrecognized compensation cost, nonvested awards | The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at October 1, 2016 (amortization periods in years):
|  | Unrecognized Compensation Cost |  |  | Weighted Average Remaining Amortization Periods |
Restricted stock units |  | $ | 5,302 |  |  |  | 1.3 |
Phantom stock units |  |  | - |  |  |  | 0.0 |
Stock options |  |  | - |  |  |  | 0.0 |
Total |  | $ | 5,302 |  |  |  |  |
Schedule of share-based compensation, restricted stock units award activity | RSU activity under the 2007 Program as of October 1, 2016 and changes during the nine fiscal months then ended are presented below (number of RSUs in thousands):
|  | Number of RSUs |  |  | Weighted Average Grant-date Fair Value per Unit |
Outstanding: |  |  |  |  |  |
January 1, 2016 |  |  | 1,028 |  |  | $ | 13.24 |
Granted |  |  | 353 |  |  |  | 11.35 |
Vested* |  |  | (142 | ) |  |  | 12.21 |
Cancelled or forfeited |  |  | (222 | ) |  |  | 13.19 |
Outstanding at October 1, 2016 |  |  | 1,017 |  |  | $ | 12.74 |
Expected to vest at October 1, 2016 |  |  | 1,017 |  |  |  |  |
* The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.
Schedule of share-based compensation arrangement by share-based units, vested and expected to vest | The number of performance-based RSUs that are scheduled to vest increases ratably based on the achievement of defined performance criteria between the established target and maximum levels. RSUs with performance-based vesting criteria are expected to vest as follows (number of RSUs in thousands):
Vesting Date |  | Expected to Vest |  |  | Not Expected to Vest |  |  | Total |
January 1, 2017 |  |  | 192 |  |  |  | - |  |  |  | 192 |
January 1, 2018 |  |  | 202 |  |  |  | - |  |  |  | 202 |
January 1, 2019 |  |  | 213 |  |  |  | - |  |  |  | 213 |
Schedule of share-based compensation, phantom stock units, Activity | Phantom stock unit activity under the phantom stock plan as of October 1, 2016 and changes during the nine fiscal months then ended are presented below (number of phantom stock units in thousands):
|  | Number of units |  |  | Grant-date Fair Value per Unit |
Outstanding: |  |  |  |  |  |
January 1, 2016 |  |  | 132 |  |  |  |
Granted |  |  | 10 |  |  | $ | 11.71 |
Dividend equivalents issued |  |  | 2 |  |  |  |  |
Outstanding at October 1, 2016 |  |  | 144 |  |  |  |  |

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- Definition Tabular disclosure of the changes in other outstanding share-based compensation awards other than stock options or nonvested awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number, aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both performance-based awards (or share units) outstanding and performance-based awards (or share units) fully vested and expected to vest at the date of the latest statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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