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Income Taxes - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Jan. 02, 2016 | Jan. 03, 2015 | Dec. 28, 2013
Income Tax Disclosure [Abstract] |  |  |
Tax benefits related to employees' and directors' stock plans | $ 881,000 | $ 771,000 | $ 351,000
Percent of effective income tax rate reconciliation at the federal statutory income tax rate | 35.00% |  |
Operating Loss Carryforwards [Line Items] |  |  |
Deferred tax assets, Valuation allowance | $ 11,493,000 | 13,040,000 |
Increase (decrease) of deferred tax asset valuation allowance | (1,547,000) |  |
Undistributed earnings of foreign subsidiaries | 168,225,000 |  |
Estimated withholding liability related to undistributed earnings of foreign subsidiaries | 3,557,000 |  |
Unrecognized tax benefits that would impact effective tax rate | 5,052,000 |  |
Income tax penalties and accrued interest from unrecognized tax benefits | 1,246,000 | 1,137,000 |
Income tax penalties and interest (benefit) expense from unrecognized tax benefits | 103,000 | $ (648,000) |
Upper bound estimated range of change of significant (increase) decrease in unrecognized tax benefits | $ 364,000 |  |
Estimate time frame for significant change in unrecognized tax benefits | 12 months |  |
Internal revenue service (IRS) |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Deferred tax assets, Valuation allowance | $ 966,000 |  |
Foreign tax authority |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Deferred tax assets, Valuation allowance | 10,527,000 |  |
Operating loss carryforwards | 37,543,000 |  |
Operating loss carryforwards expiring in 2017 through 2022 | 73,000 |  |
State and local jurisdiction |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Operating loss carryforwards | $ 28,740,000 |  |

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- Definition Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6419406&loc=d3e23524-113945 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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