Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income and comprehensive income	$ 332,479	$ 240,132	$ 239,942
Adjustments to reconcile net income and comprehensive income to net cash provided by operating activities:
Depreciation, depletion and amortization	144,426	164,937	178,935
Non-cash employee stock compensation expense	11,892	9,696	8,411
Fair value changes in equity securities	66	147	1,503
Deferred tax expense (benefit)	8,354	(6,469)	(19,836)
Impairment of royalty interests	0	0	4,287
Other	945	779	979
Changes in assets and liabilities:
Royalty receivables	(14,577)	521	4,683
Stream inventory	(3,186)	2,868	(1,049)
Income tax receivable	1,537	390	1,849
Prepaid expenses and other assets	11,168	(4,369)	(3,908)
Accounts payable	(9,113)	4,756	211
Income tax payable	7,620	(508)	(3,005)
Mount Milligan deferred liability	25,000	0	0
Other liabilities	12,892	2,912	4,343
Net cash provided by operating activities	529,503	415,792	417,345
Cash flows from investing activities:
Acquisition of stream and royalty interests	(102,564)	(2,678)	(922,155)
Proceeds from Khoemacau debt facility	25,000	0	0
Other	(116)	(151)	(721)
Net cash used in investing activities	(77,680)	(2,829)	(922,876)
Cash flows from financing activities:
Repayment of debt	(250,000)	(325,000)	(125,000)
Borrowings from revolving credit facility	0	0	700,000
Net payments from issuance of common stock	(4,620)	(1,383)	(1,447)
Common stock dividends	(105,237)	(98,567)	(91,925)
Other	(635)	(2,432)	(1,062)
Net cash (used in) provided by financing activities	(360,492)	(427,382)	480,566
Net increase (decrease) in cash and equivalents	91,331	(14,419)	(24,965)
Cash and equivalents at beginning of period	104,167	118,586	143,551
Cash and equivalents at end of period	$ 195,498	$ 104,167	$ 118,586