Revenue From Contracts With Customers - Summary of Disaggregated Net Sales (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	$ 220,648	$ 206,453	$ 421,043	$ 386,024
Products Transferred at a Point in Time and Variable Consideration Contracts [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	208,877	193,468	395,751	358,947
Products Transferred Over Time and Fixed Price Contracts [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	11,771	12,985	25,292	27,077
Residential [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	208,777	193,468	395,751	358,947
Residential [Member] | Products Transferred at a Point in Time and Variable Consideration Contracts [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	208,877	193,468	395,751	358,947
Residential [Member] | Products Transferred Over Time and Fixed Price Contracts [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	0		0
Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	11,771	12,985	25,292	27,077
Commercial [Member] | Products Transferred at a Point in Time and Variable Consideration Contracts [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	0		0
Commercial [Member] | Products Transferred Over Time and Fixed Price Contracts [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	$ 11,771	$ 12,985	$ 25,292	$ 27,077