XML 37 R27.htm IDEA: XBRL DOCUMENT
v3.20.2

Regulatory Assets and Liabilities (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
Regulated Operations [Abstract] |
Schedule of regulatory assets and liabilities | Regulatory assets and liabilities were comprised of the following as of September 30, 2020 and December 31, 2019:
| Recovery Period |  | September 30, 2020 |  | December 31, 2019
Regulatory Assets |  |  |  |  |
Pension and retiree group health | Indefinitely |  | $ | 207,828 |  |  | $ | 208,321 |
Property-related temporary differences (tax benefits flowed through to customers) | Indefinitely |  | 107,962 |  |  | 104,931 |
Other accrued benefits | Indefinitely |  | 21,434 |  |  | 20,030 |
Net WRAM and MCBA long-term accounts receivable | 1 - 2 years |  | 40,036 |  |  | 25,465 |
Asset retirement obligations, net | Indefinitely |  | 21,018 |  |  | 19,567 |
Interim rates long-term accounts receivable | 1 year |  | 21,672 |  |  | 4,642 |
Tank coating | 10 years |  | 14,209 |  |  | 13,535 |
Recoverable property losses | 10 years |  | 4,775 |  |  | 5,000 |
PCBA | 1 year |  | 32,819 |  |  | 21,465 |
Other components of net periodic benefit cost | Indefinitely |  | 6,316 |  |  | 5,145 |
Other regulatory assets | Various |  | 6,366 |  |  | 5,221 |
Total Regulatory Assets |  |  | $ | 484,435 |  |  | $ | 433,322 |
Regulatory Liabilities |  |  |  |  |
Future tax benefits due to customers |  |  | $ | 173,048 |  |  | $ | 194,501 |
HCBA |  |  | 7,407 |  |  | 4,271 |
CEBA |  |  | 2,926 |  |  | 2,742 |
Net WRAM and MCBA long-term payable |  |  | 374 |  |  | 211 |
Tax accounting memorandum account |  |  | 711 |  |  | 806 |
Cost of capital memorandum account |  |  | 15 |  |  | 151 |
1,2,3 trichloropropane (TCP) settlement proceeds |  |  | 9,084 |  |  | 8,426 |
Other regulatory liabilities |  |  | 374 |  |  | 305 |
Total Regulatory Liabilities |  |  | $ | 193,939 |  |  | $ | 211,413 |

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