Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Statement [Abstract]
Revenue (Note 9)	$ 450,539	$ 209,643	$ 919,664	$ 403,080
Costs and expenses
Cost of sales (excludes depreciation, depletion and amortization)	60,094	24,180	120,431	48,685
General and administrative	13,445	10,269	30,976	21,333
Production taxes	3,437	2,201	6,729	3,962
Depreciation, depletion and amortization	96,200	31,153	187,075	64,148
Total costs and expenses	173,176	67,803	345,211	138,128
Gain on settlement of Relief Canyon fixed obligation	2,575	0	2,575	0
Operating income	279,938	141,840	577,028	264,952
Fair value changes in equity securities	21,863	3	27,813	(34)
Gain on sale of marketable securities	458	0	14,573	0
Interest and other income	3,551	2,713	6,743	4,762
Interest and other expense	(10,010)	(1,544)	(23,253)	(2,701)
Income before income taxes	295,800	143,012	602,904	266,979
Income tax expense (Note 12)	(58,241)	(10,538)	(83,638)	(20,927)
Net income	237,559	132,474	519,266	246,052
Net income attributable to non-controlling interests	(1,166)	(125)	(1,743)	(205)
Net income attributable to Royal Gold common stockholders	236,393	132,349	517,523	245,847
Adjustments to comprehensive income, net of tax:
Realized gain on available-for-sale debt securities	0	0	(993)	0
Comprehensive income	237,559	132,474	518,273	246,052
Comprehensive income attributable to non-controlling interests	(1,166)	(125)	(1,743)	(205)
Comprehensive income attributable to Royal Gold stockholders	$ 236,393	$ 132,349	$ 516,530	$ 245,847
Net income per share attributable to Royal Gold common stockholders:
Basic earnings per share (in dollars per share)	$ 2.78	$ 2.01	$ 6.10	$ 3.73
Basic weighted average shares outstanding (in shares)	84,781,861	65,748,410	84,751,231	65,726,903
Diluted earnings per share (in dollars per share)	$ 2.78	$ 2.01	$ 6.07	$ 3.73
Diluted weighted average shares outstanding (in shares)	85,052,094	65,820,530	85,068,765	65,806,160
Cash dividends declared per common share (in dollars per share)	$ 0.475	$ 0.45	$ 0.95	$ 0.90