Sales by Product Group - Summary of Sales by Product Group (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Product category:
Net sales	$ 62,035	$ 64,858	$ 62,847	$ 49,563	$ 45,211	$ 44,743	$ 46,486	$ 38,100	$ 239,303	$ 174,540	$ 167,276
Impact Window and Door Products [Member]
Product category:
Net sales									183,400	130,100	120,900
Other Window and Door Products [Member]
Product category:
Net sales									$ 55,900	$ 44,400	$ 46,400