CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Jun. 30, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents		$ 509,782	$ 940,707
Short-term investments		51	31
Accounts receivable, net of allowance of $48,239 and $55,193, respectively		443,417	391,705
Inventory, net		87,860	94,789
Other current assets		156,069	124,341
Total current assets		1,197,179	1,551,573
Property, plant and equipment, net		2,908,061	2,920,019
Deferred income taxes		182,237	189,224
Other long-term assets		132,468	128,841
Total assets	[1]	4,419,945	4,789,657
Current liabilities:
Current portion of debt, net			377,492
Trade accounts payable		365,472	300,467
Accrued liabilities		235,690	279,007
Income taxes payable		24,221	26,295
Current lease liabilities		8,256	9,740
Total current liabilities		633,639	993,001
Long-term debt, net		2,120,276	2,117,187
Other long-term liabilities		219,135	234,700
Deferred income taxes		5,017	7,126
Total liabilities	[1]	2,978,067	3,352,014
Commitments and contingencies (Note 9)
Redeemable noncontrolling interest in subsidiary		495,886	482,446
Shareholders' equity:
Common shares, par value $0.05 per share: Authorized common shares 32,000; issued 15,962 and 15,703, respectively		798	785
Capital in excess of par value		3,757,860	3,752,604
Accumulated other comprehensive income (loss)		(11,323)	(10,397)
Retained earnings (accumulated deficit)		(1,887,456)	(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		544,128	590,727
Noncontrolling interest		401,864	364,470
Total equity		945,992	955,197
Total liabilities and equity		$ 4,419,945	$ 4,789,657

[1] The condensed consolidated balance sheets as of June 30, 2026 and December 31, 2025 include assets and liabilities of variable interest entities. See Note 4—Joint Ventures for additional information.