CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,205	$ 3,685
Accounts receivable, trade, net of allowance of $3,630 and $2,210, respectively	124,587	144,865
Inventory	70,991	74,467
Other current assets	11,106	9,186
Total current assets	208,889	232,203
Property, plant and equipment, net	2,486,074	2,559,398
Operating lease ROU assets	20,203	17,901
Goodwill, net		100,598
Intangible assets, net	69,603	77,471
Contract costs, net	37,055	42,927
Deferred tax assets	63,975	36,642
Other assets	30,285	29,934
Noncurrent assets associated with discontinued operations	12,309	12,901
Total assets	2,928,393	3,109,975
Current liabilities:
Accounts payable, trade	35,545	60,215
Accrued liabilities	78,936	67,845
Deferred revenue	5,598	10,683
Total current liabilities	120,079	138,743
Long-term debt	1,807,937	1,842,549
Operating lease liabilities	17,993	16,094
Deferred tax liabilities	1,017	1,289
Other liabilities	21,965	16,829
Noncurrent liabilities associated with discontinued operations	8,529	8,508
Total liabilities	1,977,520	2,024,012
Commitments and contingencies (Note 20)
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, 159,810,336 and 158,636,918 shares issued, respectively	1,598	1,587
Additional paid-in capital	3,419,512	3,412,509
Accumulated other comprehensive loss	(6,908)	(1,387)
Accumulated deficit	(2,380,626)	(2,244,877)
Treasury stock: 6,860,984 and 6,702,602 common shares, at cost, respectively	(82,703)	(81,869)
Total equity	950,873	1,085,963
Total liabilities and equity	$ 2,928,393	$ 3,109,975