Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,566	$ 1,569
Accounts receivable, net	137,544	104,931
Inventory	84,622	72,869
Other current assets	8,228	7,201
Total current assets	231,960	186,570
Property, plant and equipment, net	2,199,253	2,226,526
Operating lease ROU asset	16,706	17,491
Intangible assets, net	37,077	47,887
Contract costs, net	34,736	25,418
Deferred tax assets	33,353	47,879
Other assets	37,079	28,384
Assets of discontinued operations	8,586	9,811
Total assets	2,598,750	2,589,966
Current liabilities:
Accounts payable	64,324	38,920
Accrued liabilities	76,915	82,517
Deferred revenue	7,332	3,817
Total current liabilities	148,571	125,254
Long-term debt	1,548,334	1,530,825
Operating lease liabilities	14,861	15,940
Deferred tax liabilities	854	1,136
Other liabilities	17,569	17,505
Liabilities of discontinued operations	7,868	7,868
Total liabilities	1,738,057	1,698,528
Commitments and contingencies (Note 15)
Stockholders' equity:
Preferred stock - $0.01 par value, 50,000,000 shares authorized, zero issued
Common stock: $0.01 par value 250,000,000 shares authorized, 163,439,013 and 161,482,852 shares issued, respectively	1,634	1,615
Additional paid-in capital	3,456,777	3,440,059
Accumulated deficit	(2,509,133)	(2,463,114)
Accumulated other comprehensive loss		(984)
Treasury stock: 7,810,548 and 7,417,401 common shares, at cost, respectively	(88,585)	(86,138)
Total stockholders' equity	860,693	891,438
Total liabilities and stockholders' equity	$ 2,598,750	$ 2,589,966

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).