Consolidated Statements of Operations and Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Royalty revenues	$ 263,054	$ 216,469	$ 136,565
Costs and expenses
General and administrative	20,393	21,106	19,470
Production taxes	9,444	9,039	2,863
Depreciation, depletion and amortization	75,001	67,399	53,793
Restructuring on royalty interests in mineral properties	1,328
Severance and acquisition related costs			19,404
Total costs and expenses	106,166	97,544	95,530
Operating income	156,888	118,925	41,035
Interest and other income	3,836	5,088	6,360
Interest and other expense	(7,705)	(7,740)	(3,809)
Income before income taxes	153,019	116,273	43,586
Income tax expense	(54,710)	(38,974)	(14,164)
Net income	98,309	77,299	29,422
Net income attributable to non-controlling interests	(5,833)	(5,904)	(7,930)
Net income available to Royal Gold common stockholders	92,476	71,395	21,492
Net income	98,309	77,299	29,422
Adjustments to comprehensive income, net of tax
Unrealized change in market value of available for sale securities	(13,817)	89	45
Comprehensive income	84,492	77,388	29,467
Comprehensive income attributable to non-controlling interests	(5,833)	(5,904)	(7,930)
Comprehensive income attributable to Royal Gold stockholders	$ 78,659	$ 71,484	$ 21,537
Net income per share available to Royal Gold common stockholders:
Basic earnings per share (in dollars per share)	$ 1.61	$ 1.29	$ 0.49
Basic weighted average shares outstanding (in shares)	57,220,040	55,053,204	43,640,414
Diluted earnings per share (in dollars per share)	$ 1.61	$ 1.29	$ 0.49
Diluted weighted average shares outstanding (in shares)	57,463,850	55,323,410	43,980,817
Cash dividends declared per common share (in dollars per share)	$ 0.56	$ 0.42	$ 0.34