Regulatory Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2017

Regulated Operations [Abstract]

Schedule of regulatory assets and liabilities

Regulatory assets and liabilities were comprised of the following as of June 30, 2017 and December 31, 2016:

	June 30, 2017		December 31, 2016
Regulatory Assets
Pension and retiree group health	$	188,550	$	188,880
Property-related temporary differences (tax benefits flowed through to customers)	93,326		92,099
Other accrued benefits	26,663		27,503
Net WRAM and MCBA long-term accounts receivable	33,327		16,148
Asset retirement obligations, net	16,488		15,812
Interim rates long-term accounts receivable	4,634		4,605
Tank coating	9,501		8,452
Health care balancing account	227		1,000
Pension balancing account	910		—
Other regulatory assets	2,242		1,431
Total Regulatory Assets	$	375,868	$	355,930
Regulatory Liabilities
Future tax benefits due to customers	$	33,317	$	33,231
Health care balancing account	4,224		—
Conservation program	1,358		584
Pension balancing account	146		695
Net WRAM and MCBA long-term payable	720		611
Other regulatory liabilities	804		3,614
Total Regulatory Liabilities	$	40,569	$	38,735