Commitments to Acquire/Dispose of Real Estate - Separate Agreement to Acquire (Details) $ in Thousands	3 Months Ended
Mar. 31, 2019 USD ($)
Property/Unit schedule
Purchase Price	$ 28,000
Land [Member]
Property/Unit schedule
Purchase Price	$ 28,000

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.

No definition available.

Name:	us-gaap_RealEstatePropertiesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration