v3.21.2

Credit Risk Concentrations - Additional Information (Detail) - Customer	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Concentration Risk [Line Items]
Number of tenants or common franchises	0	0	0	0
Mortgages and Notes Payable | Credit Availability Concentration Risk | Financial Institution One
Concentration Risk [Line Items]
Concentrations risk percentage			68.00%		63.00%
Mortgages and Notes Payable | Credit Availability Concentration Risk | Financial Institution Two
Concentration Risk [Line Items]
Concentrations risk percentage			18.00%		16.00%
Mortgages and Notes Payable | Credit Availability Concentration Risk | Financial Institution Three
Concentration Risk [Line Items]
Concentrations risk percentage					10.00%

X

- Definition

Number of major customer.

+ References

No definition available.

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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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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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- Details

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