XML 51 R40.htm IDEA: XBRL DOCUMENT v3.23.1

Acquisitions (Details) - Texas Water $ in Thousands	Jan. 13, 2023 USD ($) people serviceConnection
KT Water Development Ltd
Business Acquisition [Line Items]
Business combination, purchase price	$ 7,338
Number of people served from acquisition | people	1,725
KT Water Development Ltd | Southern Comal County, Texas
Business Acquisition [Line Items]
Number of service connections from acquisition | serviceConnection	570
KT Water Resource L. P.
Business Acquisition [Line Items]
Business combination, purchase price	$ 53,500

X

- Definition

Public Utilities, Acquisition, Number of People Served

+ References

No definition available.

+ Details

Name:	sjw_PublicUtilitiesAcquisitionNumberOfPeopleServed
Namespace Prefix:	sjw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Public Utilities, Acquisition, Service Connections

+ References

No definition available.

+ Details

Name:	sjw_PublicUtilitiesAcquisitionServiceConnections
Namespace Prefix:	sjw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=126966197&loc=d3e6613-128477

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI https://asc.fasb.org/extlink&oid=126966197&loc=d3e6578-128477

+ Details

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	srt_ConsolidatedEntitiesAxis=sjw_TexasWaterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=sjw_KTWaterDevelopmentLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=sjw_SouthernComalCountyTexasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=sjw_KTWaterResourceLPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: