Amount recovered for reimbursements of operating expense for related party.

No definition available.

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- Definition

Percentage of investment in related party.

+ References

No definition available.

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- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
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- Definition

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
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-URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919372-209981

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=121640914&loc=SL77927221-108306

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
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- 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.

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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Mar. 01, 2019
Related Party Transaction [Line Items]
Rental income	$ 80,759	$ 93,147	$ 252,059	$ 249,634
Investment in WBW CHP LLC (as a percent)			47.70%
WBW CHP LLC
Related Party Transaction [Line Items]
Amount recovered for reimbursements of operating expense for related party			$ 800	900
American Assets, Inc. \| Board of Directors Chairman
Related Party Transaction [Line Items]
Rental income			$ 100	200
Lessor, Operating Lease, Term of Contract	10 years		10 years				3 years
American Assets, Inc. \| Board of Directors Chairman \| Scenario, Forecast
Related Party Transaction [Line Items]
Rental income					$ 200	$ 200
AAI Aviation, Inc. \| Board of Directors Chairman
Related Party Transaction [Line Items]
Aviation expense			$ 0	200
EDisability, LLC [Member] \| Board of Directors Chairman
Related Party Transaction [Line Items]
Rental income			$ 100	$ 100