CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 484,336	$ 435,990
Short-term investments	9,942	16,506
Accounts receivable, net	349,005	453,042
Inventory, net	166,537	176,341
Assets held for sale	562	2,530
Other current assets	142,540	164,257
Total current assets	1,152,922	1,248,666
Property, plant and equipment, net	4,395,725	4,930,549
Goodwill		28,380
Deferred income taxes	275,719	305,844
Other long-term assets	158,049	247,219
Total assets (1)	5,982,415	6,760,658
Current liabilities:
Trade accounts payable	221,755	295,159
Accrued liabilities	274,270	333,282
Income taxes payable	17,180	14,628
Current lease liabilities	10,485	13,479
Total current liabilities	523,690	656,548
Long-term debt	3,276,103	3,333,220
Other long-term liabilities	238,205	292,184
Deferred income taxes	2,800	3,149
Total liabilities (1)	4,040,798	4,285,101
Commitments and contingencies (Note 8)
Redeemable noncontrolling interest in subsidiary (Note 3)	434,131	425,392
Shareholders' equity:
Preferred shares, par value $0.001 per share: Series A 6% Cumulative Mandatory Convertible; $50 per share liquidation preference; outstanding 4,870 and 5,613, respectively	5	6
Common shares, par value $0.05 per share: Authorized common shares 16,000; issued 8,389 and 8,324, respectively	419	416
Capital in excess of par value	3,415,053	3,412,972
Accumulated other comprehensive income (loss)	(22,188)	(11,788)
Retained earnings (accumulated deficit)	(664,391)	(104,775)
Less: treasury shares, at cost, 1,090 and 1,056 common shares, respectively	(1,315,751)	(1,314,020)
Total shareholders' equity	1,413,147	1,982,811
Noncontrolling interest	94,339	67,354
Total equity	1,507,486	2,050,165
Total liabilities and equity	$ 5,982,415	$ 6,760,658