Summary of Estimated Future Annual Stock-Based Compensation Expense (Detail) $ in Thousands	Dec. 30, 2017 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2018	$ 5,519
2019	4,360
2020	3,107
2021	2,618
2022	1,992
Thereafter	1,388
Total	$ 18,984

Share Based Compensation Arrangement by Share Based Payment Award Expected Future Compensation Thereafter

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Share Based Compensation Arrangement by Share Based Payment Award Expected Future Compensation Year Five

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Share Based Compensation Arrangement by Share Based Payment Award Expected Future Compensation Year Four

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Share Based Compensation Arrangement by Share Based Payment Award Expected Future Compensation Year One

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Share Based Compensation Arrangement by Share Based Payment Award Expected Future Compensation Year three

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Share Based Compensation Arrangement by Share Based Payment Award Expected Future Compensation Year Two

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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