Regulatory Matters: (Tables)

6 Months Ended

Jun. 30, 2016

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, 2016			December 31, 2015
GSWC
Water Revenue Adjustment Mechanism, net of Modified Cost Balancing Account	$	61,627		$	45,171
Costs deferred for future recovery on Aerojet case	12,375			12,699
Pensions and other post-retirement obligations (Note 7)	25,215			21,996
Derivative unrealized loss (Note 4)	4,933			7,053
Flow-through taxes, net (Note 6)	16,923			16,176
Low income rate assistance balancing accounts	8,744			8,699
Other regulatory assets	26,264			25,668
Various refunds to customers	(6,021		)	(4,766		)
Total	$	150,060		$	132,696