CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 3,221	$ 3,685
Accounts receivable, trade, net of allowance of $2,523 and $2,210, respectively	138,623	144,865
Inventory	72,931	74,467
Other current assets	8,969	9,186
Total current assets	223,744	232,203
Property, plant and equipment, net	2,561,923	2,559,398
Operating lease ROU assets	19,156	17,901
Goodwill, net		100,598
Intangible assets, net	73,261	77,471
Contract costs, net	41,314	42,927
Deferred tax assets	55,175	36,642
Other assets	29,661	29,934
Noncurrent assets associated with discontinued operations	12,605	12,901
Total assets	3,016,839	3,109,975
Current liabilities:
Accounts payable, trade	62,289	60,215
Accrued liabilities	86,015	67,845
Deferred revenue	8,841	10,683
Total current liabilities	157,145	138,743
Long-term debt	1,811,455	1,842,549
Operating lease liabilities	17,184	16,094
Deferred tax liabilities	857	1,289
Other liabilities	22,207	16,829
Noncurrent liabilities associated with discontinued operations	8,519	8,508
Total liabilities	2,017,367	2,024,012
Commitments and contingencies (Note 21)
Equity:
Common stock: $0.01 par value per share, 250,000,000 shares authorized, 159,756,498 and 158,636,918 shares issued, respectively	1,598	1,587
Additional paid-in capital	3,415,784	3,412,509
Accumulated other comprehensive income (loss)	(7,173)	(1,387)
Accumulated deficit	(2,328,069)	(2,244,877)
Treasury stock: 6,830,407 and 6,702,602 common shares, at cost, respectively	(82,668)	(81,869)
Total equity	999,472	1,085,963
Total liabilities and equity	$ 3,016,839	$ 3,109,975