OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Dec. 31, 2014	Dec. 31, 2014 item	Jun. 30, 2014	Sep. 30, 2014
Minimum number of metals produced from a mine of which right to purchase all or a portion available in exchange for upfront deposit		1
Carrying value for royalty interest	$ 2,067,152	$ 2,067,152	$ 2,109,067
Impairment of royalty and stream interests	26,570	28,339
Impaired mining asset
Carrying value for royalty interest				0
Production Stage Royalty Interest
Carrying value for royalty interest	631,219	631,219	686,857
Exploration Stage Royalty Interest
Carrying value for royalty interest	$ 165,702	$ 165,702	$ 164,209