Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue (Note 5)	$ 148,902	$ 170,392
Costs and expenses
Cost of sales (excludes depreciation, depletion and amortization)	21,751	25,020
General and administrative	11,412	11,000
Production taxes	1,449	1,989
Depreciation, depletion and amortization	38,765	46,328
Total costs and expenses	73,377	84,337
Operating income	75,525	86,055
Fair value changes in equity securities	447	799
Interest and other income	2,977	2,263
Interest and other expense	(4,607)	(9,175)
Income before income taxes	74,342	79,942
Income tax expense	(27,033)	(15,871)
Net income and comprehensive income	47,309	64,071
Net income and comprehensive income attributable to non-controlling interests	(143)	(196)
Net income and comprehensive income attributable to Royal Gold common stockholders	$ 47,166	$ 63,875
Net income per share attributable to Royal Gold common stockholders:
Basic earnings per share (in dollars per share)	$ 0.72	$ 0.97
Basic weighted average shares outstanding (in shares)	65,637,428	65,594,977
Diluted earnings per share (in dollars per share)	$ 0.72	$ 0.97
Diluted weighted average shares outstanding (in shares)	65,740,260	65,709,095
Cash dividends declared per common share (in dollars per share)	$ 0.40	$ 0.375