Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	3 Months Ended
Apr. 01, 2018	Dec. 31, 2017
Accounting Standards Update 2014-09 [Member]
Summary Of Significant Accounting Policy [Line Items]
Net gift card liability balance	$ 8,900,000	$ 13,100,000
Impact to opening retained earnings	0
Accounting Standards Update 2014-09 [Member] \| Gift Card Revenue [Member]
Summary Of Significant Accounting Policy [Line Items]
Recognized sales related to gift cards redeemed by customers	7,100,000
Accounting Standards Update 2016-04 [Member]
Summary Of Significant Accounting Policy [Line Items]
Impact to opening retained earnings	$ 0

Summary Of Significant Accounting Policy [Line Items]

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Carrying value as of the balance sheet date of the liability for outstanding gift cards. Retail customers purchase gift cards or gift certificates that can be redeemed at a later date for merchandise or services; those unredeemed represent a liability of the entity because the revenue is being deferred.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount of revenue recognized that was previously reported as deferred or unearned revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 13.A.4(a).Q1 Response))
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Amount after tax of cumulative effect of restatement on the opening retained earnings of the earliest year presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22658-107794

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-Name Accounting Standards Codification
-Topic 250
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-Section 50
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-Name Accounting Standards Codification
-Topic 250
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-Section 50
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