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Balancing and Memorandum Accounts (Tables)
 3 Months Ended
Mar. 31, 2020
Regulated Operations [Abstract]  
Public Utilities General Disclosures
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Three months ended March 31, 2020
 
Three months ended March 31, 2019
Beginning Balance
 
Regulatory Asset Increase (Decrease)
 
Refunds (Collections) Adjustments
 
Ending Balance
 
Beginning Balance
 
Regulatory Asset Increase (Decrease)
 
Refunds (Collections) Adjustments
 
Ending Balance
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Revenue accounts:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2014-2017 WCMA
$
708

 
—

 
(43
)
 
665

 
$
7,750

 
—

 
(838
)
 
6,912

2018 WCMA
—

 
—

 
—

 
—

 
9,386

 
(389
)
 
—

 
8,997

2019 WCMA
—

 
—

 
—

 
—

 
—

 
(752
)
 
—

 
(752
)
2012 General Rate Case true-up
752

 
—

 
—

 
752

 
11,328

 
95

 
(1,271
)
 
10,152

Cost of capital memorandum account
(1,553
)
 
(5
)
 
—

 
(1,558
)
 
(1,523
)
 
(9
)
 
—

 
(1,532
)
Tax memorandum account
(6,643
)
 
(3
)
 
6,978

 
332

 
(6,504
)
 
(41
)
 
—

 
(6,545
)
All others
4,796

 
1,765

 
(94
)
 
6,467

 
5,112

 
1,707

 
(570
)
 
6,249

Total revenue accounts
$
(1,940
)
 
1,757

 
6,841

 
6,658

 
$
25,549

 
611

 
(2,679
)
 
23,481

Cost-recovery accounts:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Water supply costs
4,328

 
767

 
(34
)
 
5,061

 
9,617

 
(745
)
 
(655
)
 
8,217

Pension
2,449

 
415

 
22

 
2,886

 
(1,843
)
 
184

 
422

 
(1,237
)
All others
446

 
1

 
(4
)
 
443

 
1,090

 
3

 
(78
)
 
1,015

Total cost-recovery accounts
$
7,223

 
1,183

 
(16
)
 
8,390

 
$
8,864

 
(558
)
 
(311
)
 
7,995

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
$
5,283

 
2,940

 
6,825

 
15,048

 
$
34,413

 
53

 
(2,990
)
 
31,476