Regulatory Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2019

Regulated Operations [Abstract]

Schedule of regulatory assets and liabilities

Regulatory assets and liabilities were comprised of the following as of March 31, 2019 and December 31, 2018:

	Recovery Period	March 31, 2019		December 31, 2018
Regulatory Assets
Pension and retiree group health	Indefinitely	$	156,782	$	156,947
Property-related temporary differences (tax benefits flowed through to customers)	Indefinitely	99,971		99,376
Other accrued benefits	Indefinitely	26,453		25,717
Net WRAM and MCBA long-term accounts receivable	1-2 years	27,180		17,134
Asset retirement obligations, net	Indefinitely	18,666		18,197
Interim rates long-term accounts receivable	1 year	4,642		4,642
Tank coating	10 years	11,845		11,196
Health care balancing account	1 year	442		442
Pension balancing account	1 year	17,306		16,494
Other components of net periodic benefit cost	Indefinitely	3,560		3,221
Other regulatory assets	Various	74		203
Total Regulatory Assets		$	366,921	$	353,569
Regulatory Liabilities
Future tax benefits due to customers		$	180,175	$	180,205
Health care balancing account		3,547		3,516
Conservation program		6,931		6,880
Net WRAM and MCBA long-term payable		409		222
Tax accounting memorandum account		646		5,039
Cost of capital memorandum account		127		2,834
1,2,3 trichloropropane settlement proceeds		12,091		12,142
Other regulatory liabilities		212		437
Total Regulatory Liabilities		$	204,138	$	211,275