Segment Information (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting Information, Revenue for Reportable Segment [Abstract]

Reconciliation Of Sales To Earnings Before Income Taxes by Segment

The following table illustrates certain measurements used by management to assess performance of the segments described above for the three and six months ended June 30, (in thousands):

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2019			2018			2019			2018
Net sales:
Residential Products	$	130,433		$	131,128		$	234,142		$	235,076
Industrial and Infrastructure Products	56,547			61,561			111,735			116,185
Less: Intersegment sales	(329		)	(368		)	(646		)	(589		)
Net Industrial and Infrastructure Products	56,218			61,193			111,089			115,596
Renewable Energy and Conservation	76,004			73,715			144,841			130,701
Total consolidated net sales	$	262,655		$	266,036		$	490,072		$	481,373
Income from operations:
Residential Products	$	20,778		$	24,196		$	32,868		$	37,434
Industrial and Infrastructure Products	4,069			6,604			8,198			9,206
Renewable Energy and Conservation	9,649			9,556			11,281			13,618
Unallocated Corporate Expenses	(7,890		)	(8,082		)	(15,175		)	(14,141		)
Total consolidated income from operations	$	26,606		$	32,274		$	37,172		$	46,117

Disaggregation of Revenue

The following tables illustrate revenue disaggregated by timing of transfer of control to the customer for the three and six months ended June 30 (in thousands):

	Three Months Ended June 30, 2019
	Residential Products		Industrial and Infrastructure Products		Renewable Energy and Conservation		Total
Net sales:
Point in Time	$	129,566	$	46,315	$	8,469	$	184,350
Over Time	867		9,903		67,535		78,305
Total net sales	$	130,433	$	56,218	$	76,004	$	262,655

	Three Months Ended June 30, 2018
	Residential Products		Industrial and Infrastructure Products		Renewable Energy and Conservation		Total
Net sales:
Point in Time	$	130,958	$	51,428	$	8,724	$	191,110
Over Time	170		9,765		64,991		74,926
Total net sales	$	131,128	$	61,193	$	73,715	$	266,036

	Six Months Ended June 30, 2019
	Residential Products		Industrial and Infrastructure Products		Renewable Energy and Conservation		Total
Net sales:
Point in Time	$	232,458	$	91,602	$	15,759	$	339,819
Over Time	1,684		19,487		129,082		150,253
Total net sales	$	234,142	$	111,089	$	144,841	$	490,072

	Six Months Ended June 30, 2018
	Residential Products		Industrial and Infrastructure Products		Renewable Energy and Conservation		Total
Net sales:
Point in Time	$	233,842	$	97,971	$	14,344	$	346,157
Over Time	1,234		17,625		116,357		135,216
Total net sales	$	235,076	$	115,596	$	130,701	$	481,373