SUMMARY OF QUARTERLY CONSOLIDATED FINANCIAL INFORMATION (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Total revenues | $ 70,402 | $ 81,691 | $ 81,360 | $ 59,141 | $ 69,076 | $ 83,162 | $ 84,484 | $ 62,158 | $ 292,594 | $ 298,880 | $ 295,856 |
| Total operating costs | 90,493 | 86,012 | 87,113 | 73,887 | 87,192 | 82,382 | 89,706 | 78,774 | 337,505 | 338,054 | 318,097 |
| Operating (loss) income | (20,091) | (4,321) | (5,753) | (14,746) | (18,116) | 780 | (5,222) | (16,616) | (44,911) | (39,174) | (22,241) |
| Total other income (expenses) | (4,063) | 3,850 | 1,557 | 2,331 | (1,451) | 19,677 | 8,518 | 89,955 | 3,675 | 116,699 | 43,494 |
| Income tax expense (benefit) | (82) | (2) | 510 | 539 | 45 | (38) | 138 | 44 | 965 | 189 | 345 |
| (Loss) Income from continuing operations | (24,072) | (469) | (4,706) | (12,954) | (19,612) | 20,495 | 3,158 | 73,295 | (42,201) | 77,336 | 20,908 |
| Preferred dividends | (1,395) | (1,395) | (1,395) | (1,395) | (1,395) | (1,395) | (1,395) | (1,395) | (5,580) | (5,580) | (5,580) |
| Net loss (income) attributable to noncontrolling interest | (92) | (177) | (112) | 124 | 0 | (257) | 293 | ||||
| (Loss) Income Applicable To Common Stockholders | $ (25,467) | $ (1,864) | $ (6,101) | $ (14,349) | $ (21,099) | $ 18,923 | $ 1,651 | $ 72,024 | $ (47,781) | $ 71,499 | $ 16,267 |
| Loss applicable to common stock, per share | |||||||||||
| Basic (in dollars per share) | $ (0.38) | $ (0.03) | $ (0.09) | $ (0.21) | $ (0.32) | $ 0.28 | $ 0.02 | $ 1.08 | $ (0.71) | $ 1.07 | $ 0.24 |
| Diluted (in dollars per share) | $ (0.38) | $ (0.03) | $ (0.09) | $ (0.21) | $ (0.32) | $ 0.27 | $ 0.02 | $ 1.05 | $ (0.71) | $ 1.04 | $ 0.24 |
| Weighted average number of shares of common stock outstanding | |||||||||||
| Basic (in shares) | 66,963,297 | 66,932,744 | 66,874,155 | 66,841,977 | 66,772,360 | 66,730,583 | 66,681,248 | 66,654,598 | 66,903,457 | 66,709,925 | 66,479,321 |
| Diluted (in shares) | 66,963,297 | 66,932,744 | 66,874,155 | 66,841,977 | 66,772,360 | 69,072,676 | 68,899,515 | 68,284,898 | 66,903,457 | 68,788,440 | 68,647,915 |
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- Definition Heading for income/loss per share of common stock. No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The aggregate amount of gains or losses resulting from nonoperating activities (for example, interest and dividend revenue, property, plant and equipment impairment loss, and so forth). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. No definition available.
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- References No definition available.
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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