ACQUISITION (Details) $ / shares in Units, shares in Millions | Dec. 30, 2015USD ($)payment | Sep. 29, 2015USD ($)oz | Jul. 28, 2015USD ($)oz$ / sharesshares | Jul. 20, 2015USD ($)oz | Jul. 09, 2015USD ($)kmoz | Dec. 01, 2010oz | Dec. 31, 2015USD ($) | Dec. 31, 2015USD ($) | Jun. 30, 2015USD ($) |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Carrying value | | | | | | | $ 3,530,294,000 | $ 3,530,294,000 | $ 2,647,976,000 |
Royalty and stream interests, net | | | | | | | 2,996,421,000 | 2,996,421,000 | 2,083,608,000 |
Chile | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Royalty and stream interests, net | | | | | | | 835,297,000 | 835,297,000 | $ 653,019,000 |
Golden Star | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Gross loans | | | $ 20,000,000 | | | | | | |
Term of loan | | | 4 years | | | | | | |
Quarterly interest rate based on average gold rate divided by 10,000 | | | 62.50% | | | | | | |
Denominator used in calculation of quarterly interest rate | | | $ 10,000 | | | | | | |
Number of shares of common stock that can be purchased by the warrants | shares | | | 5 | | | | | | |
Grant date fair value on exercise of warrants | | | $ 800,000 | | | | | | |
Term of warrants | | | 4 years | | | | | | |
Exercise price of warrants | $ / shares | | | $ 0.27 | | | | | | |
Golden Star | Maximum | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Interest rate (as a percent) | | | 11.50% | | | | | | |
Golden Star | Other assets | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Gross loans | | | $ 20,000,000 | | | | | | |
Golden Star | Wassa, Bogoso and Prestea | First Condition | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Investment by third party | $ 5,000,000 | | | | | | | | |
BGC | Pueblo Viejo | Initial Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Gold delivered (in ounces) | oz | | 990,000 | | | | | | | |
RGLD Gold | Carmen de Andacollo | Royalty and stream interests, net | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Carrying value | | | | | $ 388,200,000 | | | | |
RGLD Gold | Golden Star | Wassa, Bogoso and Prestea | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Total purchase amount | 145,000,000 | | $ 130,000,000 | | | | | | |
Additional investment | $ 15,000,000 | | | | | | | | |
Number of installments | payment | 4 | | | | | | | | |
Allocation to production stage steam interest | | | | | | | | 62,500,000 | |
Allocation to exploration stage steam interest | | | | | | | | 13,700,000 | |
First, second and third installments | $ 20,000,000 | | | | | | | | |
Fourth installment | 10,000,000 | | | | | | | | |
Cash paid for acquisition of royalty interests | 20,000,000 | | | | | | $ 75,000,000 | | |
RGLD Gold | Golden Star | Wassa, Bogoso and Prestea | Royalty and stream interests, net | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Total purchase amount | | | | | | | | 75,000,000 | |
RGLD Gold | Golden Star | Wassa, Bogoso and Prestea | First Condition | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Total investment on subsidiary | 150,000,000 | | | | | | | | |
Additional investment | $ 5,000,000 | | | | | | | | |
Percentage of royalty interests acquired | | | 10.90% | | | | | | |
Purchase price per ounce of the commodities as percentage of spot price at the time of delivery | | | 20.00% | | | | | | |
Gold delivered (in ounces) | oz | | | 250,000 | | | | | | |
RGLD Gold | Golden Star | Wassa, Bogoso and Prestea | Second Condition | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Purchase price per ounce of the commodities as percentage of spot price at the time of delivery | | | 30.00% | | | | | | |
RGLD Gold | Golden Star | Wassa, Bogoso and Prestea | Initial Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of royalty interests acquired | | | 9.25% | | | | | | |
Gold delivered (in ounces) | oz | | | 240,000 | | | | | | |
RGLD Gold | Golden Star | Wassa, Bogoso and Prestea | Subsequent Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of royalty interests acquired | | | 10.50% | | | | | | |
RGLD Gold | Golden Star | Wassa, Bogoso and Prestea | Subsequent Two Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of royalty interests acquired | | | 5.50% | | | | | | |
RGLD Gold | BGC | Pueblo Viejo | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Ownership interest (as a percent) | | 60.00% | | | | | | | |
Total purchase amount | | $ 610,000,000 | | | | | | | |
Purchase price per ounce of the commodities as percentage of spot price at the time of delivery | | 60.00% | | | | | | | |
RGLD Gold | BGC | Pueblo Viejo | Royalty and stream interests, net | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Total purchase amount | | | | | | | | 610,000,000 | |
RGLD Gold | BGC | Pueblo Viejo | First Condition | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Maximum quantity of silver with specified purchase price (in ounces) | oz | | 23,100,000 | | | | | | | |
Purchase price per ounce of the commodities as percentage of spot price at the time of delivery | | 30.00% | | | | | | | |
Gold delivered (in ounces) | oz | | 550,000 | | | | | | | |
RGLD Gold | BGC | Pueblo Viejo | Initial Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of royalty interests acquired | | 7.50% | | | | | | | |
Percentage of silver royalty interests acquired | | 75.00% | | | | | | | |
Maximum quantity of silver with specified purchase price (in ounces) | oz | | 50,000,000 | | | | | | | |
RGLD Gold | BGC | Pueblo Viejo | Subsequent Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of royalty interests acquired | | 3.75% | | | | | | | |
Percentage of silver royalty interests acquired | | 37.50% | | | | | | | |
RGLD Gold | New Gold Inc | Rainy River | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Total purchase amount | | | | $ 175,000,000 | | | | | |
Installment payable upon meeting capital spending requirement | | | | $ 75,000,000 | | | | | |
Capital spending requirement (as a percent) | | | | 60.00% | | | | | |
Cash paid for acquisition of royalty interests | | | | $ 100,000,000 | | | | | |
RGLD Gold | New Gold Inc | Rainy River | Royalty and stream interests, net | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Total purchase amount | | | | | | | | $ 100,000,000 | |
RGLD Gold | New Gold Inc | Rainy River | Initial Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of royalty interests acquired | | | | 6.50% | | | | | |
Percentage of silver royalty interests acquired | | | | 60.00% | | | | | |
Maximum quantity of silver with specified purchase price (in ounces) | oz | | | | 3,100,000 | | | | | |
Gold delivered (in ounces) | oz | | | | 230,000 | | | | | |
RGLD Gold | New Gold Inc | Rainy River | Subsequent Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of royalty interests acquired | | | | 3.25% | | | | | |
Purchase price per ounce of the commodities as percentage of spot price at the time of delivery | | | | 25.00% | | | | | |
Percentage of silver royalty interests acquired | | | | 30.00% | | | | | |
RGLD Gold | CMCA | Carmen de Andacollo | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of produced payable gold to be purchased until 48,000 ounces have been delivered | | | | | 100.00% | | | | |
Fixed percentage of produced gold payable (as a percent) | | | | | 89.00% | | | | |
Purchase price per ounce as a percentage of monthly average gold price for the month preceding the delivery date | | | | | 15.00% | | | | |
Cash paid for acquisition of royalty interests | | | | | $ 525,000,000 | | | | |
Percentage of produced payable gold to be purchased after 48,000 ounces have been delivered | | | | | 50.00% | | | | |
RGLD Gold | CMCA | Carmen de Andacollo | Chile | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Maximum quantity of gold with specified purchase price (in ounces) | oz | | | | | 900,000 | | | | |
RGLD Gold | CMCA | Carmen de Andacollo | Maximum | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Area of mining to be eligible for concessions | km | | | | | 1.5 | | | | |
RG Chile | Carmen de Andacollo | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Royalty and stream interests, net | | | | | $ 207,500,000 | | | | |
RG Chile | CMCA | Carmen de Andacollo | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Total purchase amount | | | | | $ 345,000,000 | | | | |
RG Chile | CMCA | Carmen de Andacollo | Initial Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of royalty interests acquired | | | | | | 75.00% | | | |
Gold delivered (in ounces) | oz | | | | | | 910,000 | | | |
RG Chile | CMCA | Carmen de Andacollo | Subsequent Royalty | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Percentage of royalty interests acquired | | | | | | 50.00% | | | |
Teck | CMCA | | | | | | | | | |
Acquisition of Royalty Interest in Mineral Properties | | | | | | | | | |
Ownership interest (as a percent) | | | | | 90.00% | | | | |