Agreements and Transactions with Related Parties - Due to Affiliates (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Amounts Due to Related Parties and Affiliates
Accrued interest on WPC Credit Facility	$ 2,840	$ 2,082
Reimbursable costs due to our Advisor	1,405	1,785
Other amounts due to our Advisor	1,207	1,184
Due to other related parties and affiliates	199	1,207
Due to affiliates	$ 5,651	$ 6,258

Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6918054&loc=d3e56071-112765

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant