Mortgages Payable - Narrative (Details) $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($) mortgage	Mar. 31, 2021 USD ($) mortgage	Dec. 31, 2021 USD ($)
Debt
Principal payments	$ 43,589	$ 18,110
Mortgages payable
Debt
Principal payments	$ 43,600	$ 18,100
Number of mortgages assumed \| mortgage	0	0
Unamortized net premiums	$ 25,000		$ 28,700
Deferred financing costs	713		$ 790
Mortgages payable \| Mortgages repaid in full
Debt
Principal payments	$ 42,500	$ 17,200
Mortgages repaid in full \| mortgage	1	3

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1D
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399

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Period Type:	instant