Investments in Real Estate Partnerships - Additional Information (Details)	12 Months Ended
Dec. 31, 2019
Debt Instrument [Line Items]
Debt instrument, interest rate, basis for effective rate	91.4
Weighted average fixed interest rate	4.48%
Maturity period	2034
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Weighted average variable interest rate	3.95%

Description of any adjustments made to the stated rate to determine the effective rate.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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