Business Segments: (Tables)

6 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Schedule of reporting segments information

The tables below set forth information relating to GSWC’s operating segments, ASUS and its subsidiaries and other matters. Total assets by segment are not presented below, as certain of Registrant’s assets are not tracked by segment.  The utility plant amounts are net of respective accumulated provisions for depreciation. Capital additions reflect capital expenditures paid in cash, excluding U.S. government- and third-party contractor-funded capital expenditures for ASUS and property installed by developers and conveyed to GSWC.

	As Of And For The Three Months Ended June 30, 2020
	GSWC							AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS			Parent			AWR
Operating revenues	$	87,074	$	7,679	$	26,525		$	—		$	121,278
Operating income (loss)	28,662		1,513		5,543			(2		)	35,716
Interest expense, net	4,857		139		(220		)	56			4,832
Utility plant	1,353,671		80,343		22,384			—			1,456,398
Depreciation and amortization expense (1)	7,601		608		822			—			9,031
Income tax expense (benefit)	6,970		339		1,301			(329		)	8,281
Capital additions	22,076		5,500		1,467			—			29,043

	As Of And For The Three Months Ended June 30, 2019
	GSWC							AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS			Parent			AWR
Operating revenues	$	88,140	$	7,408	$	29,099		$	—		$	124,647
Operating income (loss)	33,259		778		5,395			(2		)	39,430
Interest expense, net	5,112		346		(219		)	167			5,406
Utility plant	1,273,962		63,462		18,239			—			1,355,663
Depreciation and amortization expense (1)	5,405		601		649			—			6,655
Income tax expense (benefit)	6,812		14		1,300			(295		)	7,831
Capital additions	36,293		1,254		3,046			—			40,593

	As Of And For The Six Months Ended June 30, 2020
	GSWC							AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS			Parent			AWR
Operating revenues	$	158,498	$	18,647	$	53,210		$	—		$	230,355
Operating income (loss)	47,267		5,000		9,152			(4		)	61,415
Interest expense, net	9,990		465		(297		)	166			10,324
Utility plant	1,353,671		80,343		22,384			—			1,456,398
Depreciation and amortization expense (1)	15,023		1,215		1,604						17,842
Income tax expense (benefit)	9,348		1,189		2,049			(404		)	12,182
Capital additions	50,535		9,054		2,998						62,587

	As Of And For The Six Months Ended June 30, 2019
	GSWC							AWR			Consolidated
(dollars in thousands)	Water		Electric		ASUS			Parent			AWR
Operating revenues	$	152,863	$	18,037	$	55,480		$	—		$	226,380
Operating income (loss)	46,525		2,839		10,265			(4		)	59,625
Interest expense, net	10,349		699		(580		)	313			10,781
Utility plant	1,273,962		63,462		18,239			—			1,355,663
Depreciation and amortization expense (1)	14,794		1,201		1,492			—			17,487
Income tax expense (benefit)	8,485		461		2,425			(230		)	11,141
Capital additions	74,672		1,988		4,495			—			81,155

(1)      Depreciation computed on GSWC’s transportation equipment is recorded in other operating expenses and totaled $83,000

and $96,000 for the three months ended June 30, 2020 and 2019, respectively, and $165,000 and $154,000 for the six months ended June 30, 2020 and 2019, respectively.

Schedule of reconciliation of total utility plant (a key figure for rate-making) to total consolidated assets

The following table reconciles total utility plant (a key figure for ratemaking) to total consolidated assets (in thousands):

	June 30,
	2020		2019
Total utility plant	$	1,456,398	$	1,355,663
Other assets	241,570		211,620
Total consolidated assets	$	1,697,968	$	1,567,283