Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Consolidated Statements of Operations and Comprehensive (Loss) Income
Revenue	$ 459,042	$ 440,814	$ 359,790
Costs and expenses
Cost of sales	83,839	87,265	70,979
General and administrative	35,464	33,350	31,720
Production taxes	2,268	1,760	3,978
Exploration costs	8,946	12,861	8,601
Depreciation, depletion and amortization	163,696	159,636	141,108
Impairment of stream and royalty interests and royalty receivables	239,364		98,588
Total costs and expenses	533,577	294,872	354,974
Operating (loss) income	(74,535)	145,942	4,816
Gain on available-for-sale securities			2,340
Interest and other income	4,170	9,302	3,711
Interest and other expense	(34,214)	(36,378)	(32,625)
(Loss) income before income taxes	(104,579)	118,866	(21,758)
Income tax expense	(14,772)	(26,441)	(60,680)
Net (loss) income	(119,351)	92,425	(82,438)
Net loss attributable to non-controlling interests	6,217	9,105	5,289
Net (loss) income attributable to Royal Gold common stockholders	(113,134)	101,530	(77,149)
Net (loss) income	(119,351)	92,425	(82,438)
Adjustments to comprehensive (loss) income, net of tax
Unrealized change in market value of available-for-sale securities	(2,080)	879	5,632
Reclassification adjustment for gains included in net income			(2,340)
Comprehensive (loss) income	(121,431)	93,304	(79,146)
Comprehensive loss attributable to non-controlling interests	6,217	9,105	5,289
Comprehensive (loss) income attributable to Royal Gold stockholders	$ (115,214)	$ 102,409	$ (73,857)
Net (loss) income per share available to Royal Gold common stockholders:
Basic (loss) earnings per share (in dollars per share)	$ (1.73)	$ 1.55	$ (1.18)
Basic weighted average shares outstanding (in shares)	65,291,855	65,152,782	65,074,455
Diluted (loss) earnings per share (in dollars per share)	$ (1.73)	$ 1.55	$ (1.18)
Diluted weighted average shares outstanding (in shares)	65,291,855	65,277,953	65,074,455
Cash dividends declared per common share (in dollars per share)	$ 0.99	$ 0.95	$ 0.91