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Stock-Based Compensation (Narrative) (Details) - USD ($) $ in Thousands, shares in Millions | 12 Months Ended
--- | ---
Dec. 30, 2017 | Dec. 31, 2016 | Jan. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expected term | 6 years | 6 years | 6 years
Deferred compensation | $ 12,300 | $ 15,980 |
Current maturities of other long-term obligations | 719 | 876 |
Other long-term liabilities | 11,581 | 15,104 |
Total fair-market value of deferred compensation | 8,885 | 12,203 |
Non-vested Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation cost | $ 3,500 |  |
Nonvested stock, weighted average recognition period | 1 year 2 months 1 day |  |
RSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period (years) | 3 years |  |
Unrecognized compensation cost | $ 300 |  |
Nonvested stock, weighted average recognition period | 8 months 12 days |  |
Total value of shares vested | $ 654 | $ 0 | $ 223
Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares available for future issuance (shares) | 3.4 |  |
Exercised period (years) | 10 years |  |
Plan | Cliff vesting |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period (years) | 4 years |  |

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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable within one year (or the operating cycle, if longer). Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20028-108363 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 25 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6409733&loc=d3e19512-108361 + Details
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