COMMITMENTS AND CONTINGENCIES (Details) (USD $)	1 Months Ended	3 Months Ended								12 Months Ended				1 Months Ended		12 Months Ended	1 Months Ended	12 Months Ended
	Oct. 31, 2009	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009	Jul. 23, 2009	Feb. 28, 2010 Canadian Minerals Partnership	Feb. 28, 2010 Altius	Jun. 30, 2011 Altius	Feb. 28, 2010 Voisey's Bay Holding Corporation	Jun. 30, 2011 Holt
Percentage of ownership interest
Percentage of ownership interest held in Labrador Nickel Royalty Limited Partnership ("LNRLP") (as a percent)														89.99%	10.00%	10.00%	0.01%
Royalty revenues		$ 59,269,000	$ 55,546,000	$ 56,316,000	$ 45,338,000	$ 40,669,000	$ 35,043,000	$ 34,740,000	$ 26,113,000	$ 216,469,000	$ 136,565,000	$ 73,771,000						$ 3,200,000
Commitments and Contingencies
Minimum damage amount claimed by Labrador Nickel Royalty Limited Partnership ("LNRLP")	$ 29,000,000
Percentage of royalty reimbursement obligation of St Andrew as per Court (as a percent)													0.013%