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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Preferred Stock | Common Stock | Additional Paid-In Capital | Accumulated Deficit | Accum. Other Comprehensive Income (Loss) | Non-Controlling Interests | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Beginning at Dec. 31, 2017 | $ 1 | $ 44 | $ 927,090 | $ (568,462) | $ (2,234) | $ 27,261 | $ 383,700
Balance at Beginning (in shares) at Dec. 31, 2017 | 927 | 43,986 |  |  |  |  |
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations and tax |  | $ 1 | 3,033 |  |  |  | 3,034
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations and tax, Shares |  | 947 |  |  |  |  |
Common stock issuances |  | $ 1 | 2,056 |  |  |  | 2,057
Common stock issuances (in shares) |  | 838 |  |  |  |  |
Pension plan adjustment |  |  |  |  | (225) |  | (225)
Preferred stock dividends |  |  |  | (1,265) |  |  | (1,265)
Net loss |  |  |  | (60,273) |  | (7,663) | (67,936)
Balance at End at Dec. 31, 2018 | $ 1 | $ 46 | 932,179 | (630,000) | (2,459) | 19,598 | 319,365
Balance at End (in shares) at Dec. 31, 2018 | 927 | 45,771 |  |  |  |  |
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations and tax |  | $ 1 | 2,650 |  |  |  | 2,651
Stock-based compensation expense - restricted stock and options to employees and directors, net of cancellations and tax, Shares |  | 1,069 |  |  |  |  |
Common stock issuances ATM |  | $ 3 | 3,667 |  |  |  | 3,670
Common stock issuances ATM, Shares |  | 3,137 |  |  |  |  |
Senior Notes Amendment: Stock Issuance |  | $ 6 | 3,811 |  |  |  | 3,817
Senior Notes Amendment: Stock Issuance, Shares |  | 5,531 |  |  |  |  |
Pension plan adjustment |  |  |  |  | 89 |  | 89
Preferred stock dividends |  |  |  | (1,265) |  |  | (1,265)
Net loss |  |  |  | (88,949) |  | (12,333) | (101,282)
Balance at End at Dec. 31, 2019 | $ 1 | $ 56 | $ 942,307 | $ (720,214) | $ (2,370) | $ 7,265 | $ 227,045
Balance at End (in shares) at Dec. 31, 2019 | 927 | 55,508 |  |  |  |  |

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