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Schedule of Income Taxes Calculated on Income from Continuing Operations Before Income Taxes and Provision for Income Taxes (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 29, 2018 | Sep. 29, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 30, 2017 | Sep. 30, 2017 | Jul. 01, 2017 | Apr. 01, 2017 | Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Income Tax Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Income taxes at federal income tax rate |  |  |  |  |  |  |  |  | $ 68,960 | $ 84,281 | $ 76,810
State income taxes, net of federal income tax benefit |  |  |  |  |  |  |  |  | 7,713 | 5,417 | 4,505
Non-deductible executive compensation |  |  |  |  |  |  |  |  | 1,012 |  |
Meals and entertainment exclusion |  |  |  |  |  |  |  |  | 719 | 1,021 | 958
Share-based payments |  |  |  |  |  |  |  |  | (2,138) | (1,549) | (239)
Section 199 deductions and R&D credits |  |  |  |  |  |  |  |  | (3,309) | (5,546) | (250)
Tax Reform Act |  |  |  |  |  |  |  |  |  | (19,530) |
Other, net |  |  |  |  |  |  |  |  | 211 | (288) | 323
Income taxes | $ 16,889 | $ 19,304 | $ 20,095 | $ 16,880 | $ 4,759 | $ 17,490 | $ 22,689 | $ 18,868 | $ 73,168 | $ 63,806 | $ 82,107

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible meals and entertainment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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