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Income Taxes - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 28, 2015	Dec. 28, 2014
Income Tax Contingency [Line Items]
Deferred tax assets valuation allowance	$ 0	$ 0
Unrecognized tax benefits	$ 0	0
Unrecognized tax benefits, period	Over the next 12 months
Accrued interest or penalties	$ 0	$ 0
Earliest Tax Year [Member] | Federal [Member]
Income Tax Contingency [Line Items]
Income tax returns in period	2011
Earliest Tax Year [Member] | State and Local [Member]
Income Tax Contingency [Line Items]
Income tax returns in period	2010

X

- Definition

The future operating cycle, or 12 months from the current date of measurement, over which there exists no expectation of unrecognized tax benefits that would impact the effective tax rate.

+ References

No definition available.

+ Details

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (c)



-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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X

- 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.

+ References

No definition available.

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- Definition

Tax year that remains open to examination under enacted tax laws, in CCYY format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



-Paragraph 15



-Subparagraph (e)



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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



-Paragraph 15



-Subparagraph (c)



-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



-Paragraph 15A



-Subparagraph (b)



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