Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified			9 Months Ended			1 Months Ended
	Sep. 28, 2013	Dec. 29, 2012	Sep. 28, 2013 State and Local Jurisdiction	Sep. 28, 2013 State and Local Jurisdiction Minimum	Sep. 28, 2013 State and Local Jurisdiction Maximum	May 31, 2013 IRS
Income Taxes [Line Items]
Unrecognized tax benefits	$ 0.7	$ 1.3
Accrued interest and penalties	$ 0.3	$ 0.7
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.			Examination of the Company's 2010 and 2011 consolidated corporate income tax returns.
Income tax return examination period				3 years	4 years