Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 227,328	$ 73,343
Restricted cash	3,323	1,621
Trade receivables, net of allowance for doubtful accounts of $5.0 million, each period	79,399	37,527
Materials and supplies	38,906	37,580
Assets held for sale		117,117
Prepaid expenses and other current assets	13,191	18,309
Total current assets	362,147	285,497
Property and equipment
Property and equipment	645,304	645,622
Accumulated depreciation	(287,314)	(266,018)
Property and equipment, net	357,990	379,604
Operating lease ROU assets	1,610	2,450
Other assets	32,549	31,843
Total assets	754,296	699,394
Current liabilities
Accounts payable	42,870	31,420
Other current liabilities	53,819	31,533
Liabilities held for sale		6,720
Total current liabilities	96,689	69,673
Long-term debt, net of discount and financing costs of $2,322 and $3,412, respectively	347,678	346,858
Other long-term liabilities	9,958	17,012
Commitments and contingencies (see Note 8)
Shareholders' equity
Ordinary shares, $0.001 par value, 50 million shares authorized; 13,115,026 shares issued and outstanding, respectively	13	13
Additional paid-in capital	633,828	633,847
Accumulated deficit	(336,591)	(369,792)
Controlling interest shareholders' equity	297,250	264,068
Noncontrolling interests	2,721	1,783
Total equity	299,971	265,851
Total liabilities and shareholders' equity	$ 754,296	$ 699,394