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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common Stock | Common Stock Warrants | Additional Paid-in Capital | Accumulated Earnings (Deficit)
--- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2017 |  | 15,428,000 |  |  |
Beginning balance at Dec. 31, 2017 | $ (369,272) | $ 7,714 | $ 3,557 | $ 546,696 | $ (927,239)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Income tax withholdings on equity awards (in shares) |  | (53,000) |  |  |
Income tax withholdings on equity awards | (369) | $ (26) |  | (343) |
Stock-based compensation (in shares) |  | 623,000 |  |  |
Stock-based compensation | 3,912 | $ 311 | 0 | 3,601 | 0
Common stock issued for debt conversion (in shares) |  | 2,000 |  |  |
Common stock issued for debt conversion | 29 | $ 1 |  | 28 |
Common stock warrants exercised (in shares) |  | 379,000 |  |  |
Common stock warrants exercised |  | $ 189 | (3,247) | 3,058 |
Net income (loss) | (92,754) |  |  |  | (92,754)
Ending balance (in shares) at Aug. 13, 2018 |  | 16,379,000 |  |  |
Ending balance at Aug. 13, 2018 | (458,454) | $ 8,189 | 310 | 553,040 | (1,019,993)
Beginning balance (in shares) at Dec. 31, 2017 |  | 15,428,000 |  |  |
Beginning balance at Dec. 31, 2017 | $ (369,272) | $ 7,714 | 3,557 | 546,696 | (927,239)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Common stock warrants exercised (in shares) | 402,708 |  |  |  |
Ending balance (in shares) at Dec. 31, 2018 |  | 105,871,000 |  |  |
Ending balance at Dec. 31, 2018 | $ 569,571 | $ 52,936 | 0 | 452,513 | 64,122
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Successor common stock, beginning balance (in shares) |  | 16,379,000 |  |  |
Successor common stock, beginning balance | 140,531 | $ 8,189 | 310 | 132,032 |
Beginning balance (in shares) at Aug. 13, 2018 |  | 16,379,000 |  |  |
Beginning balance at Aug. 13, 2018 | (458,454) | $ 8,189 | 310 | 553,040 | (1,019,993)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Jones contribution (in shares) |  | 88,571,000 |  |  |
Jones Contribution adjustment | 360,188 | $ 44,286 |  | 315,902 |
Vesting of equity awards (in shares) |  | 1,029,000 |  |  |
Vesting of equity awards | 8,826 | $ 514 |  | 8,312 |
Income tax withholdings on equity awards (in shares) |  | (547,000) |  |  |
Income tax withholdings on equity awards | (4,695) | $ (272) |  | (4,423) |
Stock-based compensation (in shares) |  | 415,000 |  |  |
Stock-based compensation | 994 | $ 207 |  | 787 |
Stock issuance costs | (395) |  |  | (395) |
Common stock warrants exercised and expired (in shares) |  | 24,000 |  |  |
Common stock warrants exercised and expired |  | $ 12 | (310) | 298 |
Net income (loss) | 64,122 |  |  |  | 64,122
Ending balance (in shares) at Dec. 31, 2018 |  | 105,871,000 |  |  |
Ending balance at Dec. 31, 2018 | 569,571 | $ 52,936 | 0 | 452,513 | 64,122
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Jones Contribution adjustment | (1,969) |  |  | (1,969) |
Income tax withholdings on equity awards (in shares) |  | (38,000) |  |  |
Income tax withholdings on equity awards | (220) | $ (19) |  | (201) |
Stock-based compensation (in shares) |  | 841,000 |  |  |
Stock-based compensation | 4,020 | $ 420 | $ 0 | 3,600 |
Issuance of common stock (in shares) |  | 83,333,000 |  |  |
Issuance of common stock | 498,633 | $ 41,666 |  | 456,967 |
Equity issuance costs | (1,487) |  |  | (1,487) |
Net income (loss) | 96,889 |  |  |  | 96,889
Preferred stock accretion | (4,583) |  |  |  | (4,583)
Payment of preferred dividends | (17,832) |  |  |  | (17,832)
Ending balance (in shares) at Dec. 31, 2019 |  | 190,007,000 |  |  |
Ending balance at Dec. 31, 2019 | 1,143,022 | $ 95,003 |  | 909,423 | 138,596
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Income tax withholdings on equity awards (in shares) |  | (115,000) |  |  |
Income tax withholdings on equity awards | (692) | $ (59) |  | (633) |
Stock-based compensation (in shares) |  | 431,000 |  |  |
Stock-based compensation | 6,464 | $ 216 |  | 6,248 |
Issuance of common stock (in shares) |  | 42,092,000 |  |  |
Issuance of common stock | 211,638 | $ 21,046 |  | 190,592 |
Stock issuance costs | (10,246) |  |  | (10,246) |
Net income (loss) | (52,417) |  |  |  | (52,417)
Preferred stock accretion | (5,417) |  |  |  | (5,417)
Payment of preferred dividends | (25,579) |  |  |  | (25,579)
Ending balance (in shares) at Dec. 31, 2020 |  | 232,415,000 |  |  |
Ending balance at Dec. 31, 2020 | $ 1,266,773 | $ 116,206 |  | $ 1,095,384 | $ 55,183

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