Commitments and Contingencies - Summary of Reconciliation of Company's Residential Product Warranty Reserve (Detail) - Surface Flaking Warranty Reserve [Member] - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Product Warranty Liability [Line Items]
Beginning balance	$ 34,999	$ 37,693
Provisions and changes in estimates	1,961	4,156
Settlements made during the period	(4,325)	(5,391)
Ending balance	32,635	36,458
Surface Flaking [Member]
Product Warranty Liability [Line Items]
Beginning balance	28,157	33,847
Settlements made during the period	(3,467)	(4,425)
Ending balance	24,690	29,422
Other Residential [Member]
Product Warranty Liability [Line Items]
Beginning balance	6,842	3,846
Provisions and changes in estimates	1,961	4,156
Settlements made during the period	(858)	(966)
Ending balance	$ 7,945	$ 7,036