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CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - 9 months ended Sep. 30, 2018 - USD ($) $ in Thousands | Total | Common Stock | Warrants | Additional Paid-In Capital | Accumulated Deficit
--- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2017 | 35,650,000 | 35,650,000 | 6,570,000 |  |
Beginning balance at Dec. 31, 2017 | $ 839,940 | $ 36 | $ 88,500 | $ 1,038,324 | $ (286,920)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Issuance of stock awards, net of cancellations (in shares) |  | 15,000 |  |  |
Issuance of stock awards, net of cancellations | 0 | $ 0 |  | 0 |
Common stock issued for general unsecured claims (in shares) |  | 26,000 |  |  |
Common stock issued for general unsecured claims | 0 |  |  |  |
Stock-based compensation | 23,224 |  |  | 23,224 |
Issuance of warrants for general unsecured claims (in shares) |  |  | 32,000 |  |
Issuance of warrants for general unsecured claims | 0 |  | $ 17 | (17) |
Cash paid for tax withholdings on vested stock awards | (7,376) |  |  | (7,376) |
Net loss | $ (63,253) |  |  |  | (63,253)
Ending balance (in shares) at Sep. 30, 2018 | 35,691,000 | 35,691,000 | 6,602,000 |  |
Ending balance at Sep. 30, 2018 | $ 792,535 | $ 36 | $ 88,517 | $ 1,054,155 | $ (350,173)

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