Regulatory Matters: (Tables)

6 Months Ended

Jun. 30, 2015

Regulated Operations [Abstract]

Schedule of regulatory assets, less regulatory liabilities in the consolidated balance sheets for continuing operations

Regulatory assets, less regulatory liabilities, included in the consolidated balance sheets are as follows: 

(dollars in thousands)	June 30, 2015			December 31, 2014
GSWC
Water Revenue Adjustment Mechanism, net of Modified Cost Balancing Account	$	28,542		$	9,369
Base Revenue Requirement Adjustment Mechanism	5,668			7,761
Costs deferred for future recovery on Aerojet case	13,220			13,629
Pensions and other post-retirement obligations (Note 7)	42,145			43,426
Derivative unrealized loss (Note 4)	5,662			3,339
Flow-through taxes, net (Note 6)	16,745			17,612
Low income rate assistance balancing accounts	8,990			9,109
Other regulatory assets	18,888			22,218
Various refunds to customers	(620		)	(759		)
Total	$	139,240		$	125,704