Agreements and Transactions with Related Parties - Due to Affiliates (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Due to Affiliates
External joint venture loans, accounts payable, and other	$ 6,624	$ 6,940
Asset management fees payable	1,062	1,328
Acquisition fees, including accrued interest	10	1,871
Loan from WPC, including accrued interest	0	21,144
Due to Affiliates	$ 7,696	$ 31,283

Carrying amount as of the balance sheet date of obligations due all related parties.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details