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Adoption of New Accounting Standards and Recently Issued Accounting Standards - Additional Information (Detail) - USD ($) $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Jul. 11, 2020 | Dec. 29, 2019 | Dec. 28, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Retained earnings | $ 227,267 |  | $ 198,905
Accounting Standards Update 2016-13 [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Retained earnings |  | $ 2,200 |
Deferred income tax | 600 |  |
Accounting Standards Update 2016-13 [Member] | Trade Receivable [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Transition adjustment due to adoption of new credit loss standard | 1,900 |  |
Accounting Standards Update 2016-13 [Member] | Notes Receivable [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Transition adjustment due to adoption of new credit loss standard | $ 300 |  |

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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable from change in methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 11 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919244-210447 + Details
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