RELATED PARTY TRANSACTIONS - Additional Underwriting Compensation and Primary Dealer Fee (Details)	6 Months Ended
Jun. 30, 2017
Dealer Manager \| Related Party
Related Party Transaction
Maximum primary dealer fee as percentage of gross proceeds from sale of class I shares	5.00%

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.

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+ Details