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Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data | The following table summarizes our quarterly financial data which, in the opinion of management, reflects all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of our results of operations:
|  | For the Three-Month Periods Ended |
|  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |
2017: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue |  | $ | 39,142 |  |  | $ | 39,561 |  |  | $ | 40,066 |  |  | $ | 42,447 |
Net income (loss) |  |  | 4,245 |  |  |  | 19,521 |  |  |  | 1,156 |  |  |  | 6,519 |
Net income (loss) allocable to common shares |  |  | 4,077 |  |  |  | 18,739 |  |  |  | 1,097 |  |  |  | 6,293 |
Total earnings (loss) per share—Basic (1) |  | $ | 0.06 |  |  | $ | 0.27 |  |  | $ | 0.02 |  |  | $ | 0.08 |
Total earnings (loss) per share—Diluted (1) |  | $ | 0.06 |  |  | $ | 0.27 |  |  | $ | 0.02 |  |  | $ | 0.08 |
2016: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue |  | $ | 38,666 |  |  | $ | 38,327 |  |  | $ | 38,364 |  |  | $ | 38,031 |
Net income (loss) |  |  | (46 | ) |  |  | 30,790 |  |  |  | 2,407 |  |  |  | (42,706 | )
Net income (loss) allocable to common shares |  |  | (75 | ) |  |  | 28,987 |  |  |  | 2,267 |  |  |  | (40,980 | )
Total earnings (loss) per share—Basic (1) |  | $ | — |  |  | $ | 0.61 |  |  | $ | 0.05 |  |  | $ | (0.61 | )
Total earnings (loss) per share—Diluted (1) |  | $ | — |  |  | $ | 0.61 |  |  | $ | 0.05 |  |  | $ | (0.61 | )
| (1) | The summation of quarterly per share amounts do not equal the full year amounts.

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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