REGULATORY ASSETS AND LIABILTIES (Tables)

12 Months Ended

Dec. 31, 2021

Regulated Operations [Abstract]

Schedule of regulatory assets and liabilities

Regulatory assets and liabilities were comprised of the following as of December 31:

	Recovery Period	2021		2020
Regulatory Assets
Pension and retiree group health	Indefinitely	$	17,607	$	59,588
Property-related temporary differences (tax benefits flowed through to customers)	Indefinitely	130,565		120,365
Other accrued benefits	Indefinitely	23,280		21,692
Net WRAM and MCBA long-term accounts receivable	1-2 years	29,789		33,136
Asset retirement obligations, net	Indefinitely	22,935		21,110
IRMA long-term accounts receivable	1-2 years	9,032		14,705
Tank coating	10 years	13,680		14,018
Recoverable property losses	8 years	3,843		4,531
PCBA	1 year	21,500		19,647
Other components of net periodic benefit cost	Indefinitely	3,342		6,736
General district balancing account receivable	1 year	568		1,830
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	5,991		5,310
Other regulatory assets	Various	3,560		2,708
Total Regulatory Assets		$	285,692	$	325,376
Regulatory Liabilities
Future tax benefits due to customers		$	135,027	$	151,011
Retiree group health		27,294		18,472
HCBA		9,687		5,320
Conservation program		7,206		3,837
Net WRAM and MCBA long-term payable		143		479
Other regulatory liabilities		1,071		1,599
Total Regulatory Liabilities		$	180,428	$	180,718