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Consolidated Statements of Operations (General and Admin Expenses) (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
General and administrative expenses | $ 16,376 | $ 18,728
Non-cash stock compensation | 1,075 | (317)
General and Administrative Expense [Member] |  |
General and administrative expenses | 15,301 | 19,045
Stock Compensation Expense - General and Admin [Member] |  |
Non-cash stock compensation | 1,075 | 2,133
Stock Compensation Expense - Profits Interest [Member] |  |
Non-cash stock compensation | $ 0 | $ (2,450)

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