ACQUISITION (Details) (El Morro, USD $) In Millions, unless otherwise specified	Aug. 31, 2013
Goldcorp Inc.
Acquisition of Royalty Interest in Mineral Properties
Percentage of Royalty Interests in Mineral Property	70.00%
Chilean subsidiary
Acquisition of Royalty Interest in Mineral Properties
Percentage of royalty interests acquired	70.00%
Percentage of Royalty Interests in Mineral Property	2.00%
Total purchase amount	$ 35
New Gold Inc.
Acquisition of Royalty Interest in Mineral Properties
Percentage of Royalty Interests in Mineral Property	30.00%