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Regulatory Assets and Liabilities (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Regulatory Assets and Liabilities |  |
Total Regulatory Assets | $ 328,336 | $ 325,376
Total Regulatory Liabilities | 183,597 | 180,718
Short-term portion of the regulatory assets | 97,820 | 96,241
Short-term portion of the regulatory liabilities | 34,215 | 34,636
Future tax benefits due to customers |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Liabilities | 151,088 | 151,011
Retiree group health |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Liabilities | 18,472 | 18,472
HCBA |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Liabilities | 7,165 | 5,320
CEBA |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Liabilities | 4,313 | 3,837
Net WRAM and MCBA long-term payable |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Liabilities | 1,397 | 479
Other regulatory liabilities |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Liabilities | 1,162 | 1,599
Pension and retiree group health |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Assets | 59,424 | 59,588
Future tax benefits due to customers |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Assets | 120,590 | 120,365
Other accrued benefits |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Assets | 22,192 | 21,692
Net WRAM and MCBA long-term accounts receivable |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Assets | 38,676 | 33,136
Asset retirement obligations, net |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Assets | $ 21,624 | 21,110
IRMA long-term accounts receivable |  |
Regulatory Assets and Liabilities |  |
Recovery Period | 1 year |
Total Regulatory Assets | $ 10,962 | 14,705
Tank coating |  |
Regulatory Assets and Liabilities |  |
Recovery Period | 10 years |
Total Regulatory Assets | $ 13,777 | 14,018
Recoverable property losses |  |
Regulatory Assets and Liabilities |  |
Recovery Period | 9 years |
Total Regulatory Assets | $ 4,361 | 4,531
PCBA |  |
Regulatory Assets and Liabilities |  |
Recovery Period | 1 year |
Total Regulatory Assets | $ 21,210 | 19,647
Other components of net periodic benefit cost |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Assets | $ 5,988 | 6,736
General district balancing account receivable |  |
Regulatory Assets and Liabilities |  |
Recovery Period | 1 year |
Total Regulatory Assets | $ 724 | 1,830
Low-income rate assistance (LIRA) and Rate support fund (RSF) accounts receivable |  |
Regulatory Assets and Liabilities |  |
Recovery Period | 1 year |
Total Regulatory Assets | $ 6,202 | 5,310
Other regulatory assets |  |
Regulatory Assets and Liabilities |  |
Total Regulatory Assets | $ 2,606 | $ 2,708
Minimum | Net WRAM and MCBA long-term accounts receivable |  |
Regulatory Assets and Liabilities |  |
Recovery Period | 1 year |
Maximum | Net WRAM and MCBA long-term accounts receivable |  |
Regulatory Assets and Liabilities |  |
Recovery Period | 2 years |

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- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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