v3.19.3.a.u2

Unaudited selected quarterly financial data (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Unaudited selected quarterly financial data |
Schedule of unaudited selected quarterly financial data |
|  | Quarter Ended |  |  |  |
|  | 2019 |  |  |  |
|  | December 31, |  | September 30, |  | June 30, |  | March 31, |  | Total |
Project revenue |  | $ | 66.2 |  | $ | 71.1 |  | $ | 71.3 |  | $ | 73.0 |  | $ | 281.6 |
Project (loss) income |  |  | (33.4) |  |  | 27.9 |  |  | 21.7 |  |  | 30.6 |  |  | 46.8 |
Net (loss) income |  |  | (63.4) |  |  | 14.3 |  |  | 2.9 |  |  | 2.4 |  |  | (43.8) |
Net (loss) income attributable to Atlantic Power Corporation |  |  | (65.3) |  |  | 12.6 |  |  | 1.2 |  |  | 8.9 |  |  | (42.6) |
(Loss) income per share attributable to Atlantic Power Corporation |  | $ | (0.60) |  | $ | 0.12 |  | $ | 0.01 |  | $ | 0.08 |  | $ | (0.39) |
Weighted average number of common shares outstanding-basic |  |  | 109.3 |  |  | 109.4 |  |  | 109.7 |  |  | 108.9 |  |  | 109.3 |
Diluted (loss) income per share attributable to Atlantic Power Corporation |  | $ | (0.60) |  | $ | 0.10 |  | $ | 0.01 |  | $ | 0.07 |  | $ | (0.39) |
Weighted average number of common shares outstanding-diluted |  |  | 109.3 |  |  | 137.8 |  |  | 110.2 |  |  | 138.6 |  |  | 109.3 |
|  | Quarter Ended |  |  |  |
|  | 2018 |  |  |  |
|  | December 31, |  | September 30, |  | June 30, |  | March 31, |  | Total |
Project revenue |  | $ | 70.7 |  | $ | 65.4 |  | $ | 66.2 |  | $ | 80.0 |  | $ | 282.3 |
Project income |  |  | 20.1 |  |  | 26.2 |  |  | 13.6 |  |  | 28.3 |  |  | 88.2 |
Net income (loss) |  |  | 26.7 |  |  | (4.7) |  |  | 1.0 |  |  | 14.2 |  |  | 37.2 |
Net income (loss) attributable to Atlantic Power Corporation |  |  | 24.7 |  |  | (3.2) |  |  | (0.6) |  |  | 15.9 |  |  | 36.8 |
Income (loss) per share attributable to Atlantic Power Corporation |  | $ | 0.23 |  | $ | (0.03) |  | $ | (0.01) |  | $ | 0.14 |  | $ | 0.33 |
Weighted average number of common shares outstanding-basic |  |  | 109.6 |  |  | 111.1 |  |  | 112.4 |  |  | 114.8 |  |  | 112.0 |
Diluted income (loss) per share attributable to Atlantic Power Corporation |  | $ | 0.18 |  | $ | (0.03) |  | $ | (0.01) |  | $ | 0.12 |  | $ | 0.29 |
Weighted average number of common shares outstanding-diluted |  |  | 140.7 |  |  | 111.1 |  |  | 112.4 |  |  | 140.6 |  |  | 141.8 |

X
- References No definition available. + Details
Name: | us-gaap_QuarterlyFinancialInformationDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118952077&loc=d3e1280-108306 + Details
Name: | us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration