Fair Value Measures and Disclosures (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Outstanding Balance | Mortgage notes payable
Assets:
Mortgage notes payable	$ 546,016	$ 552,074
Estimated Fair Value | Mortgage notes payable
Assets:
Mortgage notes payable	543,638	545,249
Fair Value, Measurements, Recurring
Assets:
Assets at fair value	29	9
Fair Value, Measurements, Recurring | Interest Rate Caps
Assets:
Derivative asset	29	9
Level 1 | Fair Value, Measurements, Recurring
Assets:
Assets at fair value	0	0
Level 1 | Fair Value, Measurements, Recurring | Interest Rate Caps
Assets:
Derivative asset	0	0
Level 2 | Fair Value, Measurements, Recurring
Assets:
Assets at fair value	29	9
Level 2 | Fair Value, Measurements, Recurring | Interest Rate Caps
Assets:
Derivative asset	29	9
Level 3 | Fair Value, Measurements, Recurring
Assets:
Assets at fair value	0	0
Level 3 | Fair Value, Measurements, Recurring | Interest Rate Caps
Assets:
Derivative asset	$ 0	$ 0