UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities:
Net income (loss) including noncontrolling interests in subsidiaries	$ 23,528	$ (189)
Adjustments to reconcile net income (loss) including noncontrolling interests in subsidiaries to net cash provided by (used in) operating activities:
Depreciation, depletion and amortization	10,610	4,568
Accretion of asset retirement obligation	434	0
Compensation expense for share-based awards	922	858
(Gain) loss on foreign currency exchange	(155)	18
Change in fair value of equity securities	4,777	26,701
Gain on sale of equity securities	(1,605)	(28,861)
Unrealized loss on derivatives	4,978	629
Deferred income taxes, net of acquired net deferred tax assets	3,323	(3,652)
Changes in assets and liabilities:
Accounts receivable	(68,814)	65,156
Inventories	1,220	1,041
Prepaid expenses and other assets	728	(10,752)
Accounts payable and accrued expenses	1,223	7,108
Royalties and contingent legal fees payable	21,249	(7,811)
Deferred revenue	7	25
Net cash provided by operating activities	2,425	54,839
Cash flows from investing activities:
Purchases of equity securities	(4,827)	(15,544)
Sales of equity securities	6,726	57,854
Acquisition, net of cash acquired (Note 3)	1,230	0
Purchases of property and equipment and additions to oil and gas properties	(2,090)	(270)
Net cash provided by investing activities	1,039	42,040
Cash flows from financing activities:
Borrowings on the Revolving credit facility	0	2,500
Paydown of Revolving Credit Facility	(5,000)	0
Paydown of Term Loan	600	0
Taxes paid related to net share settlement of share-based awards	(471)	(674)
Net cash (used in) provided by financing activities	(6,071)	1,826
Effect of exchange rates on cash and cash equivalents	691	(34)
(Decrease) increase in cash and cash equivalents	(1,916)	98,671
Cash and cash equivalents, beginning	273,880	340,091
Cash and cash equivalents, ending	271,964	438,762
Noncash investing and financing activities:
Patent acquisition of prepaid option	15,000	0
Accrued patent costs	$ 0	$ (4,000)