Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Revenue (Note 11)	$ 1,030,471	$ 719,395	$ 605,717
Costs and expenses
Cost of sales (excludes depreciation, depletion and amortization)	130,926	97,514	90,523
General and administrative	49,183	40,934	39,761
Production taxes	8,605	6,622	7,294
Depreciation, depletion and amortization	177,082	144,426	164,937
Acquisition related costs	26,508	0	0
Total costs and expenses	392,304	289,496	302,515
Operating income	638,167	429,899	303,202
Fair value changes in equity securities	327	(66)	(147)
Loss on sale of marketable securities	(50,017)	0	0
Interest and other income	14,411	6,008	9,952
Interest and other expense	(29,022)	(9,749)	(30,867)
Income before income taxes	573,866	426,092	282,140
Income tax expense (Note 14)	(102,290)	(93,613)	(42,008)
Net income	471,576	332,479	240,132
Net income attributable to non-controlling interests	(5,295)	(456)	(692)
Net income attributable to Royal Gold common stockholders	466,281	332,023	239,440
Adjustments to comprehensive income, net of tax:
Unrealized change in market value of available-for-sale debt securities	993	0	0
Comprehensive income	472,569	332,479	240,132
Comprehensive income attributable to non-controlling interests	(5,295)	(456)	(692)
Comprehensive income attributable to Royal Gold stockholders	$ 467,274	$ 332,023	$ 239,440
Net income per share attributable to Royal Gold common stockholders:
Basic earnings per share (in dollars per share)	$ 6.70	$ 5.04	$ 3.64
Basic weighted average shares outstanding (in shares)	69,424,381	65,662,185	65,613,002
Diluted earnings per share (in dollars per share)	$ 6.69	$ 5.04	$ 3.63
Diluted weighted average shares outstanding (in shares)	69,560,911	65,776,834	65,739,110
Cash dividends declared per common share (in dollars per share)	$ 1.825	$ 1.650	$ 1.525