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EARNINGS PER COMMON SHARE | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
EARNINGS PER COMMON SHARE | The following table presents a comparison of basic and diluted earnings per common share:
|  | Three months ended September 30, |  | Nine months ended September 30, |
|  | 2018 |  | 2017 |  | 2018 |  | 2017 |
| Basic earnings (loss) per common share |  |  |  |  |  |  |  |
| Net income (loss) | $ | 54,095 |  |  | $ | (457,084 | ) |  | $ | 230,812 |  |  | $ | (341,541 | ) |
| Less: preferred share dividends | 10,656 |  |  | 10,656 |  |  | 31,969 |  |  | 36,154 |  |
| Net income (loss) available to common shareholders | 43,439 |  |  | (467,740 | ) |  | 198,843 |  |  | (377,695 | ) |
| Weighted average common shares outstanding - basic | 83,558 |  |  | 83,305 |  |  | 83,474 |  |  | 84,479 |  |
| Basic earnings (loss) per common share | $ | 0.52 |  |  | $ | (5.61 | ) |  | $ | 2.38 |  |  | $ | (4.47 | ) |
| Earnings (loss) per diluted common share |  |  |  |  |  |  |  |
| Net income (loss) available to common shareholders | $ | 43,439 |  |  | $ | (467,740 | ) |  | $ | 198,843 |  |  | $ | (377,695 | ) |
| Weighted average common shares outstanding - basic | 83,558 |  |  | 83,305 |  |  | 83,474 |  |  | 84,479 |  |
| Share-based compensation plans (1) | 549 |  |  | — |  |  | 465 |  |  | — |  |
| Weighted average common shares outstanding - diluted | 84,107 |  |  | 83,305 |  |  | 83,939 |  |  | 84,479 |  |
| Earnings (loss) per diluted common share | $ | 0.52 |  |  | $ | (5.61 | ) |  | $ | 2.37 |  |  | $ | (4.47 | ) |
| Weighted average anti-dilutive shares excluded from the dilutive computation | 8 |  |  | 425 |  |  | 325 |  |  | 712 |  |
(1) Due to the net loss incurred in the three and nine months ended September 30, 2017, all the share equivalents were anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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