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Net Income Per Share (Tables) | 3 Months Ended
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Mar. 31, 2019
Earnings Per Share [Abstract] |
Schedule of Net Income Per Share |
| Three Months Ended March 31,
| 2019 |  | 2018
Numerator (in millions): |  |  |
Net loss | $ | (20.9 | ) |  | $ | (25.0 | )
Preferred stock dividends - undeclared and cumulative | 2.0 |  |  | 2.0 |
Net loss allocable to common stockholders | $ | (22.9 | ) |  | $ | (27.0 | )
Denominator (in thousands): |  |  |
Average common shares outstanding - basic | 9,532 |  |  | 9,103 |
Potentially dilutive shares related to stock options and restricted stock units (a) | — |  |  | — |
Average common shares outstanding - diluted | 9,532 |  |  | 9,103 |
Net loss per common share (in dollars) - basic and diluted: | $ | (2.40 | ) |  | $ | (2.97 | )
(a) Common stock equivalents excluded from the diluted calculation as a result of a net loss in the period (in thousands) | 41 |  |  | 28 |
Options outstanding and considered anti-dilutive as their exercise price exceeded the average share market price (in thousands) | 360 |  |  | 360 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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