Regulatory Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2024

Regulated Operations [Abstract]

Schedule of Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of March 31, 2024 and December 31, 2023:

	Recovery Period	March 31, 2024		December 31, 2023
Regulatory Assets
Property-related temporary differences (tax benefits flowed through to customers)	Indefinite	158,486		158,486
Other accrued benefits	Indefinite	26,975		25,363
Net WRAM and Modified Cost Balancing Account (MCBA) long-term accounts receivable	Various	10,490		10,738
Asset retirement obligations, net	Indefinite	27,495		26,686
IRMA long-term accounts receivable	1 - 2 years	84,593		3,430
MWRAM	1 year	31,066		—
Tank coating	Various	20,112		19,602
Recoverable property losses	Various	2,956		3,121
Pension Cost Balancing Account (PCBA)	Various	4,314		4,182
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	10,787		2,459
Other regulatory assets	Various	7,227		3,554
Total Regulatory Assets		$	384,501	$	257,621
Regulatory Liabilities
Cost of removal		$	456,471	$	447,356
Future tax benefits due to customers		118,051		118,051
Pension and retiree group health		102,255		88,728
Incremental cost balancing account (ICBA)		10,795		—
IRMA long-term regulatory liability		6,993		—
Health Cost Balancing Account (HCBA)		4,291		3,242
PCBA		11,220		8,972
Conservation Expense Balancing Account		1,324		1,200
Net WRAM and MCBA long-term payable		3,082		2,071
Other components of net periodic benefit cost		13,300		10,348
RSF regulatory liability		—		2,116
Other regulatory liabilities		2,122		1,633
Total Regulatory Liabilities		$	729,904	$	683,717