Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 314,974	$ 188,006
Accounts receivable, net	182,432	158,516
Income taxes receivable	5,099	8,891
Prepaid expenses	15,861	31,793
Inventory	60,603	77,027
Other current assets	6,701	9,171
Investment in equity securities	25,735
Assets held for sale	37,528	242,104
Total current assets	648,933	715,508
Property, plant and equipment, net	356,274	408,107
Operating lease right-of-use assets	25,154	33,317
Goodwill		138,677
Notes receivable	60,588	72,129
Restricted cash	79,561	80,178
Intangible and other long-term assets, net	28,998	53,163
Total assets	1,199,508	1,501,079
Current liabilities:
Accounts payable	43,080	50,330
Accrued expenses	116,882	114,777
Liabilities held for sale	5,607	46,376
Total current liabilities	165,569	211,483
Decommissioning liabilities	190,380	134,436
Operating lease liabilities	19,193	29,464
Deferred income taxes	12,441	5,288
Other long-term liabilities	70,192	123,261
Total non-current liabilities	292,206	292,449
Liabilities Subject to Compromise		1,335,794
Total liabilities	457,775	1,839,726
Stockholders’ equity (deficit):
Common Stock $0.001 par value		16
Predecessor Treasury stock at cost, 972,412 shares at December 31, 2020		(4,290)
Accumulated other comprehensive loss, net		(67,947)
Accumulated deficit	(162,178)	(3,023,315)
Total stockholders’ equity (deficit)	741,733	(338,647)
Total liabilities and stockholders’ equity (deficit)	1,199,508	1,501,079
Common Class A [Member]
Stockholders’ equity (deficit):
Common Stock $0.001 par value	200
Additional paid in capital	902,486	2,756,889
Common Class B [Member]
Stockholders’ equity (deficit):
Common Stock $0.001 par value	1
Additional paid in capital	$ 1,224	$ 0