COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	1 Months Ended	9 Months Ended
	Mar. 31, 2015	Feb. 28, 2015	Mar. 31, 2015
Ilovitza
Commitments and Contingencies
Remaining commitment amount	$ 167.5
Phoenix Gold Project
Commitments and Contingencies
Installment paid		12.8
Remaining commitment amount			$ 0
Voisey's Bay | Canadian Minerals Partnership
Commitments and Contingencies
Percentage of ownership interest held in Labrador Nickel Royalty Limited Partnership ("LNRLP")			89.99%
Voisey's Bay | Altius
Commitments and Contingencies
Percentage of ownership interest held in Labrador Nickel Royalty Limited Partnership ("LNRLP")			10.00%
Voisey's Bay | Voiseys Bay Holding Corporation
Commitments and Contingencies
Percentage of ownership interest held in Labrador Nickel Royalty Limited Partnership ("LNRLP")			0.01%