Regulatory Matters: (Tables)

3 Months Ended

Mar. 31, 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)	March 31, 2016			December 31, 2015
GSWC
Water Revenue Adjustment Mechanism, net of Modified Cost Balancing Account	$	53,948		$	45,171
Costs deferred for future recovery on Aerojet case	12,567			12,699
Pensions and other post-retirement obligations (Note 7)	25,538			21,996
Derivative unrealized loss (Note 4)	7,245			7,053
Flow-through taxes, net (Note 6)	16,551			16,176
Low income rate assistance balancing accounts	8,810			8,699
Other regulatory assets	25,298			25,668
Various refunds to customers	(5,759		)	(4,766		)
Total	$	144,198		$	132,696