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Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 29, 2017 | Dec. 30, 2016 | Jan. 01, 2016
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items] |  |  |
Compensation and related expenses | $ 15,558 | $ 12,794 | $ 12,459
General and administrative expenses | 597 | 539 | 500
Total stock-based compensation expense | 16,155 | 13,333 | 12,959
Income tax benefit | 6,331 | 5,214 | 5,068
Restricted Stock [Member] |  |  |
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items] |  |  |
Compensation and related expenses | 14,809 | 12,225 | 11,907
General and administrative expenses | 597 | 539 | 500
Employee Stock Option [Member] |  |  |
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items] |  |  |
Compensation and related expenses | $ 749 | $ 569 | $ 552

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- Definition Income tax benefit associated with stock-based compensation. + References No definition available. + Details
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- Definition Amount of general and administrative expense classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Amount of labor-related expenses classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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