Segment Information (Tables)

9 Months Ended

Sep. 30, 2020

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 nine months ended September 30, (in thousands):

	Three Months Ended    September 30,				Nine Months Ended    September 30,
	2020		2019		2020		2019
Net sales:
Renewable Energy and Conservation	$	128,258	$	116,771	$	323,014	$	261,612
Residential Products	151,718		126,275		394,609		360,417
Industrial and Infrastructure Products	49,767		56,361		147,831		168,096
Less: Intersegment sales	(78)		(171)		(536)		(817)
Net Industrial and Infrastructure Products	49,689		56,190		147,295		167,279
Total consolidated net sales	$	329,665	$	299,236	$	864,918	$	789,308
Income from operations:
Renewable Energy and Conservation	$	14,195	$	19,633	$	29,082	$	30,914
Residential Products	32,454		17,012		74,143		49,880
Industrial and Infrastructure Products	5,199		5,462		15,832		13,660
Unallocated Corporate Expenses	(7,989)		(10,687)		(25,417)		(25,862)
Total consolidated income from operations	$	43,859	$	31,420	$	93,640	$	68,592

Disaggregation of Revenue

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

	Three Months Ended September 30, 2020
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	29,632	$	150,608	$	39,251	$	219,491
Over Time	98,626		1,110		10,438		110,174
Total net sales	$	128,258	$	151,718	$	49,689	$	329,665

	Three Months Ended September 30, 2019
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	12,682	$	125,350	$	46,781	$	184,813
Over Time	104,089		925		9,409		114,423
Total net sales	$	116,771	$	126,275	$	56,190	$	299,236

	Nine Months Ended September 30, 2020
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	56,636	$	391,227	$	115,925	$	563,788
Over Time	266,378		3,382		31,370		301,130
Total net sales	$	323,014	$	394,609	$	147,295	$	864,918

	Nine Months Ended September 30, 2019
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	28,441	$	357,808	$	138,383	$	524,632
Over Time	233,171		2,609		28,896		264,676
Total net sales	$	261,612	$	360,417	$	167,279	$	789,308