v3.20.2

Mortgages and Notes Payable - Summary of Mortgages and Notes Payable (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Mortgages and notes payable	$ 2,038,172	$ 1,989,451
Mortgages and notes payable, net	109,512	111,793
Secured Debt
Debt Instrument [Line Items]
Mortgages and notes payable	109,872	112,151
Debt issuance costs, net	$ (360)	(358)
Wilmington Trust National Association, Due February 28 | Secured Debt
Debt Instrument [Line Items]
Origination Date	2019-04
Maturity Date	2028-02
Debt instrument, interest rate	4.92%
Mortgages and notes payable	$ 48,512	49,065
Wilmington Trust National Association, Due August 25 | Secured Debt
Debt Instrument [Line Items]
Origination Date	2018-06
Maturity Date	2025-08
Debt instrument, interest rate	4.36%
Mortgages and notes payable	$ 20,134	20,318
PNC Bank | Secured Debt
Debt Instrument [Line Items]
Origination Date	2016-10
Maturity Date	2026-11
Debt instrument, interest rate	3.62%
Mortgages and notes payable	$ 17,693	17,885
Sun Life | Secured Debt
Debt Instrument [Line Items]
Origination Date	2012-03
Maturity Date	2021-10
Debt instrument, interest rate	5.13%
Mortgages and notes payable	$ 10,681	10,888
Aegon | Secured Debt
Debt Instrument [Line Items]
Origination Date	2012-04
Maturity Date	2023-10
Debt instrument, interest rate	6.38%
Mortgages and notes payable	$ 7,419	7,788
M&T Bank | Secured Debt
Debt Instrument [Line Items]
Origination Date	2017-10
Maturity Date	2021-08
Interest Rate	one - month LIBOR+3%
Mortgages and notes payable	$ 4,842	4,913
M&T Bank | 1 Month LIBOR | Secured Debt
Debt Instrument [Line Items]
Basis spread on variable rate	3.00%
Notes holders | Secured Debt
Debt Instrument [Line Items]
Origination Date	2008-12
Maturity Date	2023-12
Debt instrument, interest rate	6.25%
Mortgages and notes payable	$ 591	750
Standard Insurance Company Due August 2030 | Secured Debt
Debt Instrument [Line Items]
Origination Date	2010-07
Maturity Date	2030-08
Debt instrument, interest rate	6.75%
Mortgages and notes payable		$ 544

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