Notes Receivable, Net - Schedule of Notes Receivable (Parenthetical) (Details) $ in Thousands	Dec. 31, 2020 USD ($) NotesReceivable	Dec. 31, 2019 USD ($)
Accounts Notes And Loans Receivable [Line Items]
Number of notes receivable | NotesReceivable	7
Notes receivable | $	$ 102,100	$ 114,943
Core Portfolio
Accounts Notes And Loans Receivable [Line Items]
Number of notes receivable | NotesReceivable	6
Notes receivable | $	$ 96,794	76,467
OP Unit Holders | Core Portfolio
Accounts Notes And Loans Receivable [Line Items]
Number of notes receivable | NotesReceivable	2
Notes receivable | $	$ 6,500	$ 6,500