XML 50 R26.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Balance Sheet Components (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2022
Balance Sheet Related Disclosures [Abstract] |
Materials and Supplies, Fuel Stock and Stored Natural Gas | Inventories of materials and supplies, fuel stock and stored natural gas are recorded at average cost for our regulated operations and the lower of cost or net realizable value for our non-regulated operations and consisted of the following as of September 30, 2022 and December 31, 2021 (dollars in thousands):
|  | September 30, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
Materials and supplies |  | $ | 70,763 |  |  | $ | 62,003 |
Stored natural gas |  | $ | 47,039 |  |  | $ | 17,604 |
Fuel stock |  |  | 5,645 |  |  |  | 5,126 |
Total |  | $ | 123,447 |  |  | $ | 84,733 |
Schedule of Other Current Assets | Other current assets consisted of the following as of September 30, 2022 and December 31, 2021 (dollars in thousands):
|  | September 30, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
Prepayments |  |  | 21,812 |  |  |  | 24,387 |
Income taxes receivable |  |  | 23,620 |  |  |  | 29,615 |
Derivative assets net of collateral |  |  | 5,022 |  |  |  | 1,398 |
Collateral posted for derivative instruments after netting with outstanding derivatives |  | $ | 47,425 |  |  | $ | 21,477 |
Other |  |  | 3,414 |  |  |  | 3,877 |
Total |  | $ | 101,293 |  |  | $ | 80,754 |
Net Utility Property
Schedule of Net Utility Property Recorded at Original Cost Net of Accumulated Depreciation | Net utility property, which is recorded at original cost net of accumulated depreciation, consisted of the following as of September 30, 2022 and December 31, 2021 (dollars in thousands):
|  | September 30, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
Utility plant in service |  | $ | 7,453,971 |  |  | $ | 7,166,580 |
Construction work in progress |  |  | 167,139 |  |  |  | 205,405 |
Total |  |  | 7,621,110 |  |  |  | 7,371,985 |
Less: Accumulated depreciation and amortization |  |  | 2,242,266 |  |  |  | 2,146,470 |
Total |  | $ | 5,378,844 |  |  | $ | 5,225,515 |
Other Property and Investments-Net and Other Non-Current Assets | Other property and investments-net and other non-current assets consisted of the following as of September 30, 2022 and December 31, 2021 (dollars in thousands):
|  | September 30, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
Equity investments |  |  | 113,390 |  |  |  | 91,057 |
Operating lease ROU assets |  |  | 68,707 |  |  |  | 70,133 |
Finance lease ROU assets |  |  | 40,966 |  |  |  | 43,697 |
Non-utility property |  |  | 25,425 |  |  |  | 20,033 |
Notes receivable |  |  | 17,254 |  |  |  | 14,949 |
Long-term prepaid license fees |  |  | 15,710 |  |  |  | 8,465 |
Investment in affiliated trust |  |  | 11,547 |  |  |  | 11,547 |
Derivative assets net of collateral |  |  | 12,741 |  |  |  | 2,659 |
Deferred compensation assets |  |  | 7,609 |  |  |  | 9,513 |
Other |  |  | 11,038 |  |  |  | 8,490 |
Total |  | $ | 324,387 |  |  | $ | 280,543 |
Other Current Liabilities | Other current liabilities consisted of the following as of September 30, 2022 and December 31, 2021 (dollars in thousands):
|  | September 30, 2022 |  |  | December 31, 2021 |
Accrued taxes other than income taxes |  | $ | 40,579 |  |  | $ | 41,706 |
Derivative liabilities |  |  | 2,996 |  |  |  | 28,801 |
Employee paid time off accruals |  |  | 29,638 |  |  |  | 27,741 |
Accrued interest |  |  | 34,990 |  |  |  | 17,538 |
Deferred wholesale revenue |  |  | 29,081 |  |  |  | 884 |
Pensions and other postretirement benefits |  |  | 13,277 |  |  |  | 13,582 |
Other |  |  | 42,412 |  |  |  | 38,609 |
Total |  | $ | 192,973 |  |  | $ | 168,861 |
Schedule of Other Non-Current Liabilities and Deferred Credits | Other non-current liabilities and deferred credits consisted of the following as of September 30, 2022 and December 31, 2021 (dollars in thousands):
|  | September 30, 2022 |  |  | December 31, 2021 |
Operating lease liabilities |  | $ | 67,702 |  |  | $ | 66,068 |
Finance lease liabilities |  |  | 43,304 |  |  |  | 45,730 |
Deferred investment tax credits |  |  | 28,922 |  |  |  | 29,313 |
Asset retirement obligations |  |  | 15,878 |  |  |  | 17,142 |
Derivative liabilities |  |  | 4,673 |  |  |  | 4,525 |
Other |  |  | 16,446 |  |  |  | 15,347 |
Total |  | $ | 176,925 |  |  | $ | 178,125 |
Schedule of Regulatory Assets and Liabilities | Regulatory assets and liabilities consisted of the following as of September 30, 2022 and December 31, 2021 (dollars in thousands):
|  | September 30, 2022 |  |  | December 31, 2021 |
|  | Current |  |  | Non-Current |  |  | Current |  |  | Non-Current |
Regulatory Assets |  |  |  |  |  |  |  |  |  |  |  |
Energy commodity derivatives |  | $ | 8,374 |  |  | $ | 4,201 |  |  | $ | 12,447 |  |  | $ | 2,938 |
Decoupling surcharge |  |  | 6,674 |  |  |  | 5,346 |  |  |  | 9,907 |  |  |  | 14,625 |
Deferred natural gas costs |  |  | 38,674 |  |  |  | — |  |  |  | 14,095 |  |  |  | 6,932 |
Deferred power costs |  |  | 4,413 |  |  |  | — |  |  |  | 7,334 |  |  |  | 3,501 |
Deferred income taxes |  |  | — |  |  |  | 251,033 |  |  |  | — |  |  |  | 244,154 |
Pension and other postretirement benefit plans |  |  | — |  |  |  | 161,665 |  |  |  | — |  |  |  | 165,696 |
Interest rate swaps |  |  | — |  |  |  | 187,607 |  |  |  | — |  |  |  | 199,754 |
AFUDC above FERC allowed rate |  |  | — |  |  |  | 50,956 |  |  |  | — |  |  |  | 48,455 |
Settlement with Coeur d'Alene Tribe |  |  | — |  |  |  | 38,088 |  |  |  | — |  |  |  | 38,926 |
Advanced meter infrastructure |  |  | — |  |  |  | 33,288 |  |  |  | — |  |  |  | 36,008 |
Utility plant abandoned |  |  | — |  |  |  | 24,937 |  |  |  | — |  |  |  | 26,771 |
COVID-19 deferrals |  |  | — |  |  |  | 13,497 |  |  |  | — |  |  |  | 13,591 |
Unamortized debt repurchase costs |  |  | — |  |  |  | 6,305 |  |  |  | — |  |  |  | 6,768 |
Demand side management programs |  |  | — |  |  |  | 5,144 |  |  |  | — |  |  |  | 3,974 |
Other regulatory assets |  |  | 1,438 |  |  |  | 54,471 |  |  |  | — |  |  |  | 48,533 |
Total regulatory assets |  | $ | 59,573 |  |  | $ | 836,538 |  |  | $ | 43,783 |  |  | $ | 860,626 |
Regulatory Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Income tax related liabilities |  | $ | 77,689 |  |  | $ | 402,464 |  |  | $ | 56,331 |  |  | $ | 458,789 |
Deferred power costs |  |  | — |  |  |  | 2,287 |  |  |  | 6,457 |  |  |  | 5,434 |
Decoupling rebate |  |  | 7,504 |  |  |  | 17,748 |  |  |  | 3,049 |  |  |  | 6,259 |
Utility plant retirement costs |  |  | — |  |  |  | 370,232 |  |  |  | — |  |  |  | 350,190 |
Interest rate swaps |  |  | — |  |  |  | 23,556 |  |  |  | — |  |  |  | 15,062 |
COVID-19 deferrals |  |  | — |  |  |  | 12,032 |  |  |  | — |  |  |  | 12,500 |
Other regulatory liabilities |  |  | 12,888 |  |  |  | 17,176 |  |  |  | 11,312 |  |  |  | 13,281 |
Total regulatory liabilities |  | $ | 98,081 |  |  | $ | 845,495 |  |  | $ | 77,149 |  |  | $ | 861,515 |

X
- Definition Schedule of net utility property. + References No definition available. + Details
Name: | ava_ScheduleOfNetUtilityPropertyTableTextBlock
Namespace Prefix: | ava_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of regulated asset and liability + References No definition available. + Details
Name: | ava_ScheduleOfRegulatedAssetAndLiabilityTableTextBlock
Namespace Prefix: | ava_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of other current liabilities. + References No definition available. + Details
Name: | us-gaap_OtherCurrentLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of other noncurrent liabilities. + References No definition available. + Details
Name: | us-gaap_OtherNoncurrentLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
Name: | us-gaap_ScheduleOfInventoryCurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amounts of other current assets. + References No definition available. + Details
Name: | us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration