CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents		$ 500,807	$ 940,707
Short-term investments		46	31
Accounts receivable, net of allowance of $58,492 and $55,193, respectively		417,717	391,705
Inventory, net		90,158	94,789
Other current assets		143,873	124,341
Total current assets		1,152,601	1,551,573
Property, plant and equipment, net		2,914,886	2,920,019
Deferred income taxes		184,639	189,224
Other long-term assets		133,510	128,841
Total assets	[1]	4,385,636	4,789,657
Current liabilities:
Current portion of debt, net			377,492
Trade accounts payable		322,837	300,467
Accrued liabilities		223,355	279,007
Income taxes payable		29,553	26,295
Current lease liabilities		9,470	9,740
Total current liabilities		585,215	993,001
Long-term debt, net		2,118,729	2,117,187
Other long-term liabilities		234,891	234,700
Deferred income taxes		5,272	7,126
Total liabilities	[1]	2,944,107	3,352,014
Commitments and contingencies (Note 9)
Redeemable noncontrolling interest in subsidiary		489,129	482,446
Shareholders' equity:
Common shares, par value $0.05 per share: Authorized common shares 32,000; issued 15,959 and 15,703, respectively		798	785
Capital in excess of par value		3,753,357	3,752,604
Accumulated other comprehensive income (loss)		(11,093)	(10,397)
Retained earnings (accumulated deficit)		(1,858,369)	(1,836,514)
Less: treasury shares, at cost, 1,161 and 1,161 common shares, respectively		(1,315,751)	(1,315,751)
Total shareholders' equity		568,942	590,727
Noncontrolling interest		383,458	364,470
Total equity		952,400	955,197
Total liabilities and equity		$ 4,385,636	$ 4,789,657

[1] The condensed consolidated balance sheets as of March 31, 2026 and December 31, 2025 include assets and liabilities of variable interest entities. See Note 4—Joint Ventures for additional information.