Segment Information

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Segment Information

Note 4 – Segment Information

The Company has two reportable segments: natural gas operations and construction services. Southwest has a single reportable segment that is referred to herein as the natural gas operations segment of the Company. In order to reconcile to net income as disclosed in the Condensed Consolidated Statements of Income, an Other column is included associated with impacts related to corporate and administrative activities related to Southwest Gas Holdings, Inc. The following tables present revenues from external customers, intersegment revenues, and segment net income for the two reportable segments (thousands of dollars):

	Natural Gas Operations		Construction Services		Other			Total
Three months ended June 30, 2018
Revenues from external customers	$	275,679	$	362,132	$	—		$	637,811
Intersegment revenues		—		33,072		—			33,072
Total	$	275,679	$	395,204	$	—		$	670,883
Segment net income (loss)	$	2,622	$	19,236	$	(307	)	$	21,551
Three months ended June 30, 2017
Revenues from external customers	$	260,162	$	277,384	$	—		$	537,546
Intersegment revenues		—		22,923		—			22,923
Total	$	260,162	$	300,307	$	—		$	560,469
Segment net income (loss)	$	9,522	$	8,716	$	(374	)	$	17,864
	Natural Gas Operations		Construction Services		Other			Total
Six months ended June 30, 2018
Revenues from external customers	$	769,992	$	594,991	$	—		$	1,364,983
Intersegment revenues		—		60,230		—			60,230
Total	$	769,992	$	655,221	$	—		$	1,425,213
Segment net income (loss)	$	92,971	$	8,235	$	(564	)	$	100,642
Six months ended June 30, 2017
Revenues from external customers	$	722,764	$	448,223	$	—		$	1,170,987
Intersegment revenues		—		44,219		—			44,219
Total	$	722,764	$	492,442	$	—		$	1,215,206
Segment net income (loss)	$	86,460	$	1,382	$	(670	)	$	87,172
	Natural Gas Operations		Construction Services		Other			Total
Twelve months ended June 30, 2018
Revenues from external customers	$	1,349,536	$	1,296,093	$	—		$	2,645,629
Intersegment revenues		—		113,170		—			113,170
Total	$	1,349,536	$	1,409,263	$	—		$	2,758,799
Segment net income (loss)	$	163,329	$	45,213	$	(1,231	)	$	207,311
Twelve months ended June 30, 2017
Revenues from external customers	$	1,263,428	$	1,038,876	$	—		$	2,302,304
Intersegment revenues		—		94,396		—			94,396
Total	$	1,263,428	$	1,133,272	$	—		$	2,396,700
Segment net income (loss)	$	125,942	$	29,552	$	(670	)	$	154,824