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Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Allowance for doubtful accounts: |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance, beginning of period | $ 3,891 | $ 1,512 | $ 272
Opening balance, SJWNE, LLC | 0 | 0 | 1,283
Charged to expense | 932 | (177) | 520
Charged to regulatory asset | 1,610 | 3,032 | 0
Accounts written off | (2,394) | (800) | (875)
Recoveries of accounts written off | 561 | 324 | 312
Balance, end of period | 4,600 | 3,891 | 1,512
Reserve for litigation and claims: |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance, beginning of period | 684 | 2,898 | 2,181
Charged to expense | 916 | 958 | 3,221
Accounts written off | (50) | (122) | (135)
Payments | (943) | (3,050) | (2,369)
Balance, end of period | $ 607 | $ 684 | $ 2,898

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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