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Long-Term Debt - Summary of Debt Instruments (Parenthetical) (Detail)	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Senior Secured Term Loan [Member]
Debt Instrument [Line Items]
Notes maturity date	Dec. 18, 2023	Dec. 18, 2023
Long-term Debt [Member]
Debt Instrument [Line Items]
Other debt, due date, start	2019	2019
Other debt, due date, end	2024	2024
Long-term Debt [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest Rate Range	2.61%	2.61%
Long-term Debt [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest Rate Range	8.75%	8.75%
Senior Secured Revolving Credit Facility | Revolving credit agreement [Member]
Debt Instrument [Line Items]
Notes maturity date	Dec. 18, 2023	Dec. 18, 2023

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+ References

No definition available.

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- Definition

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+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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