Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
|
| Reconciliation of information used in computing basic and diluted earnings per share [Abstract] | ||
| Loss from continuing operations | $ (0.4) | $ (5.0) |
| Earnings from discontinued operations, net | 0.1 | 1.8 |
| Net loss | $ (0.3) | $ (3.2) |
| Basic (loss) earnings per common share: | ||
| Loss from continuing operations, per basic share | $ 0.00 | $ (0.06) |
| Earnings from discontinued operations, per basic share | 0.00 | 0.02 |
| Net loss per share, basic | $ 0.00 | $ (0.04) |
| Weighted average shares outstanding | 89,718,318 | 88,973,503 |
| Diluted (loss) earnings per common share: | ||
| Loss from continuing operations, per diluted share | $ 0.00 | $ (0.06) |
| Loss from discontinued operations, net | 0.00 | 0.02 |
| Net loss per share, diluted | $ 0.00 | $ (0.04) |
| Diluted (in shares) | 89,718,318 | 88,973,503 |
| Weighted average number of anti-dilutive shares excluded from the calculation (in shares) | 6,100,498 | 4,024,573 |