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Group Companies - Summary of Investment in Joint Ventures (Detail) - BCRE IHG 180 Orchard Holdings LLC [member] | 12 Months Ended
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Dec. 31, 2018
Disclosure of Composition of Group [Line Items] |
Name of subsidiary | BCRE IHG 180 Orchard Holdings LLC
Registered addresses | Brack Capital Real Estate Ltd., 885 Third Avenue, 24th Floor, New York, NY 10022, USA
Ownership Percentage in subsidiary | 49.00%

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