Regulatory Matters: (Tables)

3 Months Ended

Mar. 31, 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)	March 31, 2015			December 31, 2014
GSWC
Water Revenue Adjustment Mechanism, net of Modified Cost Balancing Account	$	17,948		$	9,369
Base Revenue Requirement Adjustment Mechanism	6,452			7,761
Costs deferred for future recovery on Aerojet case	13,457			13,629
Pensions and other post-retirement obligations (Note 7)	42,884			43,426
Derivative unrealized loss (Note 4)	6,176			3,339
Flow-through taxes, net (Note 6)	17,092			17,612
Low income rate assistance balancing accounts	9,215			9,109
General rate case memorandum accounts	4,651			4,731
Other regulatory assets	14,686			17,487
Various refunds to customers	(640		)	(759		)
Total	$	131,921		$	125,704