Related Parties - Additional Information (Detail) (Builders FirstSource, Inc [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Builders FirstSource, Inc [Member]
Related Party Transaction [Line Items]
Total net sales to Builders FirstSource	$ 5.1	$ 4.5	$ 3.7
Accounts receivables due from Builders FirstSource	$ 0.6	$ 0.6