Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Operating activities
Net income	$ 64,565	$ 349,152
Adjustments to reconcile to cash from operating activities:
Depreciation, depletion and amortization	118,149	108,273
Accretion on asset retirement obligations	17,608	15,877
Deferred income taxes	(1,345)	66,561
Employee stock-based compensation expense	15,819	19,699
Amortization relating to financing activities	2,168	1,317
Gain on disposals and divestitures, net	(213)	(714)
Reclamation work completed	(6,038)	(17,642)
Contribution to fund for asset retirement obligations	(5,667)	(4,421)
Changes in:
Receivables	39,936	(49,950)
Inventories	9,169	(10,199)
Accounts payable, accrued expenses and other current liabilities	(62,824)	(31,241)
Income taxes, net	258	(999)
Other	20,774	8,105
Cash provided by operating activities	212,359	453,818
Investing activities
Capital expenditures	(126,888)	(121,030)
Minimum royalty payments	(988)	(1,113)
Proceeds from disposals and divestitures	219	1,363
Purchases of short-term investments	(41,397)	(23,386)
Proceeds from sales of short-term investments	38,244	30,417
Investments in and advances to affiliates, net	(10,330)	(12,210)
Cash used in investing activities	(141,140)	(125,959)
Financing activities
Payments on convertible debt		(58,430)
Net payments on other debt	(23,717)	(30,568)
Debt financing costs	(1,516)
Purchases of treasury stock	(30,747)	(122,502)
Dividends paid	(68,944)	(183,790)
Payments for taxes related to net share settlement of equity awards	(24,339)	(27,230)
Proceeds from warrants exercised		43,949
Cash used in financing activities	(139,431)	(380,821)
Decrease in cash and cash equivalents, including restricted cash	(68,212)	(52,962)
Cash and cash equivalents, including restricted cash, beginning of period	288,907	237,159
Cash and cash equivalents, including restricted cash, end of period	220,695	184,197
SUPPLEMENTAL CASH FLOW INFORMATION
Cash and cash equivalents	219,595	183,097
Restricted Cash	1,100	1,100
Cash and cash equivalents, including restricted cash, end of period	220,695	184,197
Term loan due 2025
Financing activities
Proceeds from issuance of term loan due 2025	20,000
Payments on term loan	(6,666)
Term loan due 2024
Financing activities
Payments on term loan	$ (3,502)	$ (2,250)