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Balance Sheet Components - Schedule of Inventory (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Balance Sheet Related Disclosures [Abstract] |  |
Materials and supplies | $ 97,398 | $ 81,651
Emission allowances | 69,885 | 56,097
Stored natural gas | 11,239 | 16,272
Fuel stock | 7,418 | 5,964
Total | $ 185,940 | $ 159,984

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- Definition Carrying amount as of the balance sheet date of natural gas stored underground in depleted gas reservoirs, aquifers, or salt caverns to meet seasonal and peak load demands, and also as insurance against unforeseen supply disruptions, and deemed to be a current asset because it is expected to be used within twelve months or in the normal operating cycle. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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