Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 28, 2015	Dec. 27, 2014
Income Taxes [Line Items]
Unrecognized tax benefits	400,000	$ 400,000
Accrued interest and penalties	300,000	300,000
Income tax receivable	8,996,000	21,321,000
2014 Federal Corporate Income Tax, Accelerated Tax Depreciation Applied
Income Taxes [Line Items]
Income tax receivable	17,200,000
State and Local Jurisdiction
Income Taxes [Line Items]
Income tax return examination	The Company's state income tax returns remain subject to examination for three or four years depending on the state's statute of limitations.
State and Local Jurisdiction | Minimum
Income Taxes [Line Items]
Income tax return examination period	3 years
State and Local Jurisdiction | Maximum
Income Taxes [Line Items]
Income tax return examination period	4 years