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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 1,933 $ 1,097
Accounts receivable, trade, net of allowance 107,535 104,425
Inventory 66,024 63,670
Other current assets 12,818 12,819
Total current assets 188,310 182,011
Property, plant and equipment, net 2,342,076 2,389,674
Operating lease ROU assets 19,073 19,236
Intangible assets, net 57,369 61,531
Contract costs, net 25,638 29,216
Deferred tax assets 53,602 56,934
Other assets 25,733 30,084
Noncurrent assets associated with discontinued operations 10,730 11,036
Total assets 2,722,531 2,779,722
Current liabilities:    
Accounts payable, trade 35,190 30,819
Accrued liabilities 96,444 76,993
Deferred revenue 3,099 3,880
Total current liabilities 134,733 111,692
Long-term debt 1,619,238 1,688,867
Operating lease liabilities noncurrent 16,941 16,925
Deferred tax liabilities 696 725
Other liabilities 19,931 18,088
Noncurrent liabilities associated with discontinued operations 7,868 7,868
Total liabilities 1,799,407 1,844,165
Commitments and contingencies
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, 161,323,492 and 160,014,960 shares issued, respectively 1,613 1,600
Additional paid-in capital 3,430,910 3,424,624
Accumulated other comprehensive loss (4,010) (5,006)
Accumulated deficit (2,419,974) (2,401,988)
Treasury stock: 7,263,173 and 7,052,769 common shares, at cost, respectively (85,415) (83,673)
Total equity 923,124 935,557
Total liabilities and equity $ 2,722,531 $ 2,779,722