Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 197,307,000	$ 188,006,000
Restricted cash - current	16,751,000
Accounts receivable, net of allowance for doubtful accounts of $0 and $24,629 at March 31, 2021 and December 31, 2020, respectively	182,519,000	183,964,000
Income taxes receivable		8,891,000
Prepaid expenses	41,666,000	36,651,000
Inventory and other current assets	105,772,000	96,141,000
Assets held for sale	41,881,000	47,635,000
Total current assets	585,896,000	561,288,000
Property, plant and equipment, net	612,597,000	542,090,000
Operating lease right-of-use assets	45,965,000	50,192,000
Goodwill	0	138,677,000
Notes receivable	73,677,000	72,612,000
Restricted cash	80,056,000	80,178,000
Intangible and other long-term assets, net	25,649,000	56,042,000
Total assets	1,423,840,000	1,501,079,000
Current liabilities:
Accounts payable	61,543,000	55,873,000
Accrued expenses	162,063,000	130,332,000
Income taxes payable	1,561,000
Current portion of decommissioning liabilities	358,000	3,765,000
Liabilities held for sale	1,177,000	4,079,000
Total current liabilities	226,702,000	194,049,000
Decommissioning liabilities	174,224,000	138,981,000
Operating lease liabilities	29,416,000	40,258,000
Deferred income taxes	54,473,000	5,288,000
Other long-term liabilities	72,969,000	125,356,000
Total non-current liabilities	331,082,000	309,883,000
Liabilities subject to compromise		1,335,794,000
Total liabilities	557,784,000	1,839,726,000
Stockholders’ equity (deficit):
Common stock		16,000
Additional paid-in capital	902,486,000	2,756,889,000
Predecessor Treasury stock at cost, 972,412 shares at December 31, 2020		(4,290,000)
Accumulated other comprehensive loss, net		(67,947,000)
Accumulated deficit	(36,630,000)	(3,023,315,000)
Total stockholders’ equity (deficit)	866,056,000	(338,647,000)
Total liabilities and stockholders’ equity (deficit)	1,423,840,000	$ 1,501,079,000
Common Class A [Member]
Stockholders’ equity (deficit):
Common stock	$ 200,000