Revenue Recognition and Contracts with Customers - Net Sales by Product Category, Channel and by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Disaggregation Of Revenue [Line Items]
Net sales	$ 197,823	$ 199,084	$ 570,130	$ 508,606
Impact-Resistant Windows and Door Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	131,100	158,300	395,700	425,600
Non-Impact Window and Door Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	66,700	40,800	174,400	83,000
Southeast Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales	158,377	176,961	456,435	479,974
Southeast Segment [Member] | Impact-Resistant Windows and Door Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	129,500	157,200	392,000	422,300
Southeast Segment [Member] | Non-Impact Window and Door Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	28,800	19,800	64,400	57,700
Western Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales	39,446	22,123	113,695	28,632
Western Segment [Member] | Impact-Resistant Windows and Door Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	1,600	1,100	3,700	3,300
Western Segment [Member] | Non-Impact Window and Door Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	37,900	21,000	110,000	25,300
New Construction [Member]
Disaggregation Of Revenue [Line Items]
Net sales	95,600	81,400	281,500	192,700
New Construction [Member] | Southeast Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales	59,700	62,700	176,400	174,000
New Construction [Member] | Western Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales	35,900	18,700	105,100	18,700
Repair and Remodel [Member]
Disaggregation Of Revenue [Line Items]
Net sales	102,200	117,700	288,600	315,900
Repair and Remodel [Member] | Southeast Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales	98,600	114,300	280,000	306,000
Repair and Remodel [Member] | Western Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 3,600	$ 3,400	$ 8,600	$ 9,900