Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 2,042	$ 1,569
Accounts receivable, net of allowance of $1,487 and $2,152, respectively	127,334	104,931
Inventory	84,091	72,869
Other current assets	6,817	7,201
Total current assets	220,284	186,570
Property, plant and equipment, net	2,214,666	2,226,526
Operating lease right-of-use assets	16,089	17,491
Intangible assets, net	39,019	47,887
Contract costs, net	32,598	25,418
Deferred tax assets	37,001	47,879
Other assets	37,051	28,384
Assets of discontinued operations	8,893	9,811
Total assets	2,605,601	2,589,966
Current liabilities:
Accounts payable	89,602	38,920
Accrued liabilities	97,021	82,517
Deferred revenue	7,707	3,817
Total current liabilities	194,330	125,254
Long-term debt	1,498,895	1,530,825
Operating lease liabilities	14,286	15,940
Deferred tax liabilities	1,076	1,136
Other liabilities	19,330	17,505
Liabilities of discontinued operations	7,868	7,868
Total liabilities	1,735,785	1,698,528
Commitments and contingencies (Note 8)
Stockholders' equity:
Preferred stock - $0.01 par value per share, 50,000,000 shares authorized, zero issued
Common stock - $0.01 par value per share, 250,000,000 shares authorized, 163,412,780 and 161,482,852 shares issued, respectively	1,633	1,615
Additional paid-in capital	3,453,720	3,440,059
Accumulated deficit	(2,497,002)	(2,463,114)
Accumulated other comprehensive loss		(984)
Treasury stock, 7,801,150 and 7,417,401 common shares, at cost, respectively	(88,535)	(86,138)
Total stockholders' equity	869,816	891,438
Total liabilities and stockholders' equity	$ 2,605,601	$ 2,589,966