SUBSEQUENT EVENT (Details) (Subsequent Events, RGLD Gold AG, USD $) In Millions, unless otherwise specified	0 Months Ended
	Oct. 20, 2014 item mi	Oct. 20, 2014
Subsequent event
Total purchase amount		$ 175.0
Distance of mining property from Cortez mine	9
Number of installments	2
Feasibility costs	15.0
Construction costs	160
Purchase price per ounce of gold as percentage of spot price at the time of delivery	25.00%
First Conditions
Subsequent event
Feasibility costs	7.5
Euromax required contribution	5
Second Conditions
Subsequent event
Feasibility costs	$ 7.5
Initial Royalty
Subsequent event
Percentage of royalty interests acquired		25.00%
Gold delivered (in ounces)	525,000
Subsequent Royalty
Subsequent event
Percentage of royalty interests acquired	12.50%	12.50%