Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenue (Note 6)	$ 193,837	$ 138,617	$ 516,835	$ 453,051
Costs and expenses
Cost of sales (excludes depreciation, depletion and amortization)	27,192	21,351	73,116	69,738
General and administrative	10,102	9,927	32,025	30,020
Production taxes	1,520	1,671	4,550	4,934
Depreciation, depletion and amortization	36,177	40,106	110,689	124,847
Total costs and expenses	74,991	73,055	220,380	229,539
Operating income	118,846	65,562	296,455	223,512
Fair value changes in equity securities	(425)	(462)	(42)	(171)
Interest and other income	626	2,436	4,410	7,348
Interest and other expense	(1,207)	(7,285)	(8,330)	(24,867)
Income before income taxes	117,840	60,251	292,493	205,822
Income tax expense (Note 9)	(21,510)	(10,752)	(67,535)	(28,652)
Net income and comprehensive income	96,330	49,499	224,958	177,170
Net income and comprehensive income attributable to non-controlling interests	(88)	(162)	(343)	(509)
Net income and comprehensive income attributable to Royal Gold common stockholders	$ 96,242	$ 49,337	$ 224,615	$ 176,661
Net income per share attributable to Royal Gold common stockholders:
Basic earnings per share (in dollars per share)	$ 1.46	$ 0.75	$ 3.41	$ 2.69
Basic weighted average shares outstanding (in shares)	65,670,381	65,619,406	65,652,934	65,606,681
Diluted earnings per share (in dollars per share)	$ 1.46	$ 0.75	$ 3.41	$ 2.68
Diluted weighted average shares outstanding (in shares)	65,795,014	65,757,076	65,767,668	65,743,114
Cash dividends declared per common share (in dollars per share)	$ 0.40	$ 0.375	$ 1.20	$ 1.125