Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Cash flows from operating activities:
Net income and comprehensive income	$ 64,071	$ 65,962
Adjustments to reconcile net income and comprehensive income to net cash provided by operating activities:
Depreciation, depletion and amortization	46,328	47,988
Non-cash employee stock compensation expense	2,636	2,124
Fair value changes in equity securities	(799)	(613)	$ 1,503
Deferred tax expense	1,092	688
Other	214	245
Changes in assets and liabilities:
Royalty receivables	2,471	569
Stream inventory	1,056	3,118
Income tax receivable	1,342	518
Prepaid expenses and other assets	(914)	(7,309)
Accounts payable	1,166	(208)
Income tax payable	(7,840)	(10,910)
Other liabilities	(2,168)	(1,039)
Net cash provided by operating activities	108,655	101,133
Cash flows from investing activities:
Acquisition of stream and royalty interests		(37,800)
Other	(197)	(11)
Net cash used in investing activities	(197)	(37,811)
Cash flows from financing activities:
Repayment of debt	(75,000)
Net payments from issuance of common stock	(397)	141
Common stock dividends	(24,629)	(22,978)
Other	(202)	(329)
Net cash used in financing activities	(100,228)	(23,166)
Net increase in cash and equivalents	8,230	40,156
Cash and equivalents at beginning of period	118,586	143,551	143,551
Cash and equivalents at end of period	$ 126,816	$ 183,707	$ 118,586