Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Consolidated Statements of Operations and Comprehensive Income
Revenue	$ 114,348	$ 106,961	$ 226,824	$ 224,909
Costs and expenses
Cost of sales	19,863	22,502	40,282	45,163
General and administrative	9,555	7,538	16,455	18,045
Production taxes	602	445	1,145	942
Exploration costs	1,358	2,476	4,561	5,764
Depreciation, depletion and amortization	42,008	39,519	81,701	79,621
Total costs and expenses	73,386	72,480	144,144	149,535
Operating income	40,962	34,481	82,680	75,374
Interest and other income	645	7,488	1,634	9,045
Interest and other expense	(9,034)	(9,823)	(17,651)	(18,128)
Income before income taxes	32,573	32,146	66,663	66,291
Income tax expense	(48,360)	(5,044)	(55,904)	(12,232)
Net (loss) income	(15,787)	27,102	10,759	54,059
Net loss attributable to non-controlling interests	1,022	960	3,105	3,791
Net (loss) income attributable to Royal Gold common stockholders	(14,765)	28,062	13,864	57,850
Net (loss) income	(15,787)	27,102	10,759	54,059
Adjustments to comprehensive (loss) income, net of tax
Unrealized change in market value of available-for-sale securities	(390)	822	(193)	822
Comprehensive (loss) income	(16,177)	27,924	10,566	54,881
Comprehensive loss attributable to non-controlling interests	1,022	960	3,105	3,791
Comprehensive (loss) income attributable to Royal Gold stockholders	$ (15,155)	$ 28,884	$ 13,671	$ 58,672
Net (loss) income per share available to Royal Gold common stockholders:
Basic (loss) earnings per share (in dollars per share)	$ (0.23)	$ 0.43	$ 0.21	$ 0.89
Basic weighted average shares outstanding (in shares)	65,306,766	65,149,518	65,271,131	65,133,102
Diluted (loss) earnings per share (in dollars per share)	$ (0.23)	$ 0.43	$ 0.21	$ 0.88
Diluted weighted average shares outstanding (in shares)	65,306,766	65,253,209	65,460,430	65,264,137
Cash dividends declared per common share (in dollars per share)	$ 0.25	$ 0.24	$ 0.49	$ 0.47