Regulatory Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2024

Regulated Operations [Abstract]

Schedule of Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of June 30, 2024 and December 31, 2023:

	Recovery Period	June 30, 2024		December 31, 2023
Regulatory Assets
Property-related temporary differences (tax benefits flowed through to customers)	Indefinite	$	158,486	$	158,486
IRMA long-term accounts receivable	1 - 2 years	92,065		3,430
MWRAM	1 year	38,566		—
Other accrued benefits	Indefinite	26,917		25,363
Asset retirement obligations, net	Indefinite	28,311		26,686
Tank coating	Various	20,480		19,602
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	10,015		2,459
Net WRAM and Modified Cost Balancing Account (MCBA) long-term accounts receivable	Various	5,199		10,738
Pension Cost Balancing Account (PCBA)	Various	4,829		4,182
Recoverable property losses	Various	2,791		3,121
Other regulatory assets	Various	9,839		3,554
Total Regulatory Assets		$	397,498	$	257,621
Regulatory Liabilities
Cost of removal		$	464,980	$	447,356
Future tax benefits due to customers		118,051		118,051
Pension and retiree group health		102,120		88,728
Other components of net periodic benefit cost		15,160		10,348
PCBA		12,642		8,972
Incremental cost balancing account (ICBA)		12,704		—
IRMA long-term regulatory liability		8,032		—
Health Cost Balancing Account (HCBA)		3,606		3,242
Net WRAM and MCBA long-term payable		2,860		2,071
Conservation Expense Balancing Account		1,058		1,200
RSF regulatory liability		—		2,116
Other regulatory liabilities		1,629		1,633
Total Regulatory Liabilities		$	742,842	$	683,717