Commitments and Contingencies - Summary of Reconciliation of Company's Residential Product Warranty Reserve (Detail) - Surface Flaking Warranty Reserve [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Product Warranty Liability [Line Items]
Beginning balance	$ 37,692	$ 33,522
Provisions and changes in estimates	4,268	10,852
Settlements made during the period	(6,961)	(6,682)
Ending balance	34,999	37,692
Surface Flaking [Member]
Product Warranty Liability [Line Items]
Beginning balance	33,847	29,673
Provisions and changes in estimates		9,835
Settlements made during the period	(5,689)	(5,661)
Ending balance	28,158	33,847
Other Residential [Member]
Product Warranty Liability [Line Items]
Beginning balance	3,845	3,849
Provisions and changes in estimates	4,268	1,017
Settlements made during the period	(1,272)	(1,021)
Ending balance	$ 6,841	$ 3,845