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v3.22.2.2

Subsequent Event (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Oct. 11, 2022 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Subsequent Event [Line Items] |  |  |  |  |
Refunds (Collections) Adjustments |  | $ (8,708) | $ 0 | $ (26,101) | $ 6
Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
2022 revenue increase | $ 25,074 |  |  |  |
2022 percent revenue increase | 6.03% |  |  |  |
2023 revenue increase | $ 12,955 |  |  |  |
2023 percent revenue increase | 2.94% |  |  |  |
2024 revenue increase | $ 16,102 |  |  |  |
2024 percent revenue increase | 3.56% |  |  |  |
Refunds (Collections) Adjustments | $ 18,174 |  |  |  |
Regulatory authorization for capital budget | $ 350,000 |  |  |  |

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- Definition Balancing and Memorandum Revenue Account, Increase (Decrease), Current Fiscal Year + References No definition available. + Details
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- Definition Balancing and Memorandum Revenue Account, Increase (Decrease), Year One + References No definition available. + Details
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Namespace Prefix: | sjw_
Data Type: | xbrli:monetaryItemType
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- Definition Balancing and Memorandum Revenue Account, Increase (Decrease), Year Two + References No definition available. + Details
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Namespace Prefix: | sjw_
Data Type: | xbrli:monetaryItemType
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- Definition Balancing and Memorandum Revenue Accounts, Percent Increase, Current Fiscal Year + References No definition available. + Details
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Namespace Prefix: | sjw_
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- Definition Balancing and Memorandum Revenue Accounts, Percent Increase, Year One + References No definition available. + Details
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- Definition Balancing and Memorandum Revenue Accounts, Percent Increase, Year Two + References No definition available. + Details
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- Definition Balancing and Memorandum Revenue Account, Refunds (Collections) + References No definition available. + Details
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Namespace Prefix: | sjw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Regulatory Authorization For Capital Budget + References No definition available. + Details
Name: | sjw_RegulatoryAuthorizationForCapitalBudget
Namespace Prefix: | sjw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Details
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