XML 34 R24.htm IDEA: XBRL DOCUMENT
v3.21.1

Regulatory Assets and Liabilities (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Regulated Operations [Abstract] |
Schedule of regulatory assets and liabilities | Regulatory assets and liabilities were comprised of the following as of March 31, 2021 and December 31, 2020:
| Recovery Period |  | March 31, 2021 |  | December 31, 2020
Regulatory Assets |  |  |  |  |
Pension and retiree group health | Indefinitely |  | $ | 59,424 |  |  | $ | 59,588 |
Property-related temporary differences (tax benefits flowed through to customers) | Indefinitely |  | 120,590 |  |  | 120,365 |
Other accrued benefits | Indefinitely |  | 22,192 |  |  | 21,692 |
Net WRAM and MCBA long-term accounts receivable | 1 - 2 years |  | 38,676 |  |  | 33,136 |
Asset retirement obligations, net | Indefinitely |  | 21,624 |  |  | 21,110 |
IRMA long-term accounts receivable | 1 year |  | 10,962 |  |  | 14,705 |
Tank coating | 10 years |  | 13,777 |  |  | 14,018 |
Recoverable property losses | 9 years |  | 4,361 |  |  | 4,531 |
PCBA | 1 year |  | 21,210 |  |  | 19,647 |
Other components of net periodic benefit cost | Indefinitely |  | 5,988 |  |  | 6,736 |
General district balancing account receivable | 1 year |  | 724 |  |  | 1,830 |
Low-income rate assistance (LIRA) and Rate support fund (RSF) accounts receivable | 1 year |  | 6,202 |  |  | 5,310 |
Other regulatory assets | Various |  | 2,606 |  |  | 2,708 |
Total Regulatory Assets |  |  | $ | 328,336 |  |  | $ | 325,376 |
Regulatory Liabilities |  |  |  |  |
Future tax benefits due to customers |  |  | $ | 151,088 |  |  | $ | 151,011 |
Retiree group health |  |  | 18,472 |  |  | 18,472 |
HCBA |  |  | 7,165 |  |  | 5,320 |
CEBA |  |  | 4,313 |  |  | 3,837 |
Net WRAM and MCBA long-term payable |  |  | 1,397 |  |  | 479 |
Other regulatory liabilities |  |  | 1,162 |  |  | 1,599 |
Total Regulatory Liabilities |  |  | $ | 183,597 |  |  | $ | 180,718 |

X
- Definition Tabular disclosure of detailed information about regulatory assets and liabilities. + References No definition available. + Details
Name: | cwt_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | cwt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RegulatedOperationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration