Segment Information (Tables)

9 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Summary of Segment Information

Summarized segment information is as follows:

	For the Quarter Ended September 30, 2017
(In thousands)	Piping Systems		Industrial Metals		Climate		Corporate and Eliminations			Total
Net sales	$	384,078	$	147,578	$	32,488	$	(13,781	)	$	550,363
Cost of goods sold	340,191		120,021		24,111		(13,061		)	471,262
Depreciation and amortization	5,290		1,845		636		495			8,266
Selling, general, and administrative expense	17,873		2,667		2,312		10,424			33,276
Operating income	20,724		23,045		5,429		(11,639		)	37,559
Interest expense										(5,237		)
Other (expense) income, net										(458		)
Income before income taxes										$	31,864

Segment Information (continued):

	For the Quarter Ended October 1, 2016
(In thousands)	Piping Systems		Industrial Metals		Climate		Corporate and Eliminations			Total
Net sales	$	351,557	$	131,350	$	30,003	$	(6,326	)	$	506,584
Cost of goods sold	301,867		107,512		22,210		(6,921		)	424,668
Depreciation and amortization	5,905		1,964		612		535			9,016
Selling, general, and administrative expense	16,647		3,125		2,357		10,284			32,413
Asset impairments	3,000		—		—		—			3,000
Operating income	24,138		18,749		4,824		(10,224		)	37,487
Interest expense										(1,830		)
Other income, net										120
Income before income taxes										$	35,777

	For the Nine Months Ended September 30, 2017
( In thousands)	Piping Systems		Industrial Metals		Climate		Corporate and Eliminations			Total
Net sales	$	1,205,697	$	451,919	$	103,403	$	(18,470	)	$	1,742,549
Cost of goods sold	1,049,098		377,036		77,124		(19,258		)	1,484,000
Depreciation and amortization	16,223		5,647		1,880		1,466			25,216
Selling, general, and administrative expense	54,293		8,761		7,244		32,655			102,953
Asset impairments	411		—		—		—			411
Operating income	85,672		60,475		17,155		(33,333		)	129,969
Interest expense										(14,210		)
Other income, net										324
Income before income taxes										$	116,083

Segment Information (continued):

	For the Nine Months Ended October 1, 2016
( In thousands)	Piping Systems		Industrial Metals		Climate		Corporate and Eliminations			Total
Net sales	$	1,109,109	$	393,608	$	92,068	$	(11,321	)	$	1,583,464
Cost of goods sold	949,015		321,615		68,363		(11,623		)	1,327,370
Depreciation and amortization	17,341		6,219		1,829		1,608			26,997
Selling, general, and administrative expense	51,497		9,989		7,336		33,885			102,707
Asset impairments	3,000		—		—		—			3,000
Operating income	88,256		55,785		14,540		(35,191		)	123,390
Interest expense										(5,370		)
Other income, net										880
Income before income taxes										$	118,900