CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents		$ 396,937	$ 447,766
Short-term investments		22,000	34,036
Accounts receivable, net		613,527	756,320
Inventory, net		186,124	165,587
Assets held for sale		8,037	12,250
Other current assets		153,723	177,604
Total current assets		1,380,348	1,593,563
Property, plant and equipment, net		5,152,236	5,467,870
Goodwill		90,543	183,914
Deferred income taxes		353,181	345,091
Other long-term assets		297,189	263,506
Total assets (1)	[1]	7,273,497	7,853,944
Current liabilities:
Current portion of debt		1,058	561
Trade accounts payable		364,658	392,843
Accrued liabilities		279,181	417,912
Income taxes payable		23,837	20,761
Current lease liabilities		13,570
Total current liabilities		682,304	832,077
Long-term debt		3,516,592	3,585,884
Other long-term liabilities		284,388	274,485
Deferred income taxes		29,109	6,311
Total liabilities (1)	[1]	4,512,393	4,698,757
Commitments and contingencies (Note 8)
Redeemable noncontrolling interest in subsidiary (Note 3)		420,217	404,861
Shareholders' equity:
Preferred shares, par value $0.001 per share: Series A 6% Cumulative Mandatory Convertible; $50 per share liquidation preference; issued 5,746 and 5,750, respectively		6	6
Common shares, par value $0.001 per share: Authorized common shares 800,000; issued 416,209 and 409,652, respectively		416	410
Capital in excess of par value		3,410,731	3,392,937
Accumulated other comprehensive income (loss)		(16,567)	(29,325)
Retained earnings		171,139	650,842
Less: treasury shares, at cost, 52,800 and 52,800 common shares, respectively		(1,314,020)	(1,314,020)
Total shareholders' equity		2,251,705	2,700,850
Noncontrolling interest		89,182	49,476
Total equity		2,340,887	2,750,326
Total liabilities and equity		$ 7,273,497	$ 7,853,944

[1] The condensed consolidated balance sheet as of September 30, 2019 and December 31, 2018 include assets and liabilities of variable interest entities. See Note 3—Joint Ventures for additional information.