Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Revenue (Note 6)	$ 252,068	$ 193,837	$ 655,148	$ 516,835
Costs and expenses
Cost of sales (excludes depreciation, depletion and amortization)	31,392	27,192	80,077	73,116
General and administrative	10,213	10,102	31,545	32,025
Production taxes	2,418	1,520	6,381	4,550
Depreciation, depletion and amortization	32,903	36,177	97,051	110,689
Acquisition related costs	12,798	0	12,798	0
Total costs and expenses	89,724	74,991	227,852	220,380
Operating income	162,344	118,846	427,296	296,455
Fair value changes in equity securities	0	(425)	(35)	(42)
Interest and other income	6,781	626	11,544	4,410
Interest and other expense	(8,616)	(1,207)	(11,317)	(8,330)
Income before income taxes	160,509	117,840	427,488	292,493
Income tax expense (Note 9)	(28,704)	(21,510)	(49,631)	(67,535)
Net income and comprehensive income	131,805	96,330	377,857	224,958
Net income and comprehensive income attributable to non-controlling interests	(4,981)	(88)	(5,187)	(343)
Net income and comprehensive income attributable to Royal Gold common stockholders	$ 126,824	$ 96,242	$ 372,670	$ 224,615
Net income per share attributable to Royal Gold common stockholders:
Basic earnings per share (in dollars per share)	$ 1.92	$ 1.46	$ 5.66	$ 3.41
Basic weighted average shares outstanding (in shares)	65,761,896	65,670,381	65,738,696	65,652,934
Diluted earnings per share (in dollars per share)	$ 1.92	$ 1.46	$ 5.65	$ 3.41
Diluted weighted average shares outstanding (in shares)	65,831,341	65,795,014	65,814,682	65,767,668
Cash dividends declared per common share (in dollars per share)	$ 0.45	$ 0.40	$ 1.35	$ 1.20