Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended			6 Months Ended	12 Months Ended	6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Dec. 29, 2013	Jun. 29, 2014 State [Member]	Dec. 29, 2013 State [Member]	Jun. 29, 2014 Internal Revenue Service (IRS) [Member] Minimum [Member]	Jun. 29, 2014 State Tax Legislation [Member] Minimum [Member]
Income Tax [Line Items]
Tax rate	36.00%	35.50%
Effective income tax rate with noncontrolling interest	39.00%	37.80%
Uncertain tax positions	$ 3.2	$ 5.9	$ 2.8
Uncertain tax positions that would affect tax rate	3.2	3.4	2.8
Time period that uncertain tax positions not expected to materially change	12 months
Credit to income tax expense		(0.4)
State previous tax rate					6.90%
State current tax rate after reduction				6.00%
Tax rate after further reduction				5.00%
Decrease in corporate income tax expense due to state tax rate change					$ (2.3)
Tax year open for examination						2010	1995