v3.5.0.2

Basic and diluted earnings (loss) per share (Tables) | 6 Months Ended
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Jun. 30, 2016
Basic and diluted earnings (loss) per share |
Schedule of diluted net income and potentially dilutive shares utilized in the per share calculation |
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2016 |  | 2015 |  | 2016 |  | 2015
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Loss from continuing operations attributable to Atlantic Power Corporation |  | $ | (18.5) |  | $ | (22.3) |  | $ | (33.5) |  | $ | 0.1
Income from discontinued operations, net of tax |  |  | — |  |  | 37.0 |  |  | — |  |  | 32.1
Net (loss) income attributable to Atlantic Power Corporation |  | $ | (18.5) |  | $ | 14.7 |  | $ | (33.5) |  | $ | 32.2
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average basic shares outstanding |  |  | 121.6 |  |  | 121.9 |  |  | 121.8 |  |  | 121.7
Dilutive potential shares: |  |  |  |  |  |  |  |  |  |  |  |
Convertible debentures |  |  | 14.8 |  |  | 22.6 |  |  | 18.3 |  |  | 23.0
LTIP notional units |  |  | 0.1 |  |  | 0.2 |  |  | 0.1 |  |  | 0.2
Potentially dilutive shares |  |  | 136.5 |  |  | 144.7 |  |  | 140.2 |  |  | 144.9
Diluted loss per share from continuing operations attributable to Atlantic Power Corporation |  | $ | (0.15) |  | $ | (0.18) |  | $ | (0.28) |  | $ | —
Diluted earnings per share from discontinued operations |  |  | — |  |  | 0.30 |  |  | — |  |  | 0.26
Diluted (loss) earnings per share attributable to Atlantic Power Corporation |  | $ | (0.15) |  | $ | 0.12 |  | $ | (0.28) |  | $ | 0.26

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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://www.xbrl.org/2003/role/presentationRef -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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