Business Segments (Tables) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Revenue from External Customer [Line Items]
Revenues	$ 331,249	$ 319,875	$ 551,615	$ 516,464
Vinyl Windows [Member]
Revenue from External Customer [Line Items]
Revenues	117,387	106,390	199,641	176,030
Vinyl Siding Products [Member]
Revenue from External Customer [Line Items]
Revenues	58,353	59,628	93,518	93,722
Metal Products [Member]
Revenue from External Customer [Line Items]
Revenues	41,837	40,500	70,244	67,807
Third-Party Payor [Member]
Revenue from External Customer [Line Items]
Revenues	80,971	84,283	128,470	127,195
Other Products and Services [Member]
Revenue from External Customer [Line Items]
Revenues	$ 32,701	$ 29,074	$ 59,742	$ 51,710