v3.20.2

Equity (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
Equity |
Schedule of reconciliation of equity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | Accumulated |  | Total |  | Preferred |  | ​ | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | Other | ​ | Atlantic Power | ​ | Shares of a | ​ | ​ |
​ | ​ | Common | ​ | Retained | ​ | Comprehensive | ​ | Corporation | ​ | Subsidiary | ​ | Total |
​ | ​ | Shares | ​ | Deficit | ​ | (loss) income | ​ | Shareholders' Deficit | ​ | Company | ​ | Equity |
Balance at June 30, 2020 |  | $ | 1,224.6 | ​ | $ | (1,140.4) | ​ | $ | (147.3) | ​ | $ | (63.1) | ​ | $ | 168.8 | ​ | $ | 105.7 | ​
Net income |  |  | — | ​ |  | 16.2 | ​ |  | — | ​ |  | 16.2 | ​ |  | 1.6 | ​ |  | 17.8 | ​
Share-based compensation |  | ​ | 0.3 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 0.3 | ​ | ​ | — | ​ | ​ | 0.3 | ​
Common share repurchases |  |  | (5.5) | ​ |  | — | ​ |  | — | ​ |  | (5.5) | ​ |  | — | ​ |  | (5.5) | ​
Dividends on preferred shares of a subsidiary company - Series 1 (Cdn$0.303125 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.8) | ​ | ​ | (0.8) | ​
Dividends on preferred shares of a subsidiary company - Series 2 (Cdn$0.358688 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.6) | ​ | ​ | (0.6) | ​
Dividends on preferred shares of a subsidiary company - Series 3 (Cdn$0.286976 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.2) | ​ | ​ | (0.2) | ​
Realized and unrealized loss on hedging activities, net of tax |  |  | — | ​ |  | — | ​ |  | 0.1 | ​ |  | 0.1 | ​ |  | — | ​ |  | 0.1 | ​
Foreign currency translation adjustments |  |  | — | ​ |  | — | ​ |  | 2.5 | ​ |  | 2.5 | ​ |  | — | ​ |  | 2.5 | ​
Balance at September 30, 2020 |  | $ | 1,219.4 | ​ | $ | (1,124.2) | ​ | $ | (144.7) | ​ | $ | (49.5) | ​ | $ | 168.8 | ​ | $ | 119.3 | ​
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | Accumulated |  | Total |  | Preferred |  | ​ | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | Other | ​ | Atlantic Power | ​ | Shares of a | ​ | ​ |
​ | ​ | Common | ​ | Retained | ​ | Comprehensive | ​ | Corporation | ​ | Subsidiary | ​ | Total |
​ | ​ | Shares | ​ | Deficit | ​ | (loss) income | ​ | Shareholders' Equity | ​ | Company | ​ | Equity |
Balance at June 30, 2019 |  | $ | 1,260.9 | ​ | $ | (1,111.5) | ​ | $ | (141.5) | ​ | $ | 7.9 | ​ | $ | 182.9 | ​ | $ | 190.8 | ​
Net income |  |  | — | ​ |  | 12.6 | ​ |  | — | ​ |  | 12.6 | ​ |  | 1.7 | ​ |  | 14.3 | ​
Share-based compensation |  | ​ | 0.4 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 0.4 | ​ | ​ | — | ​ | ​ | 0.4 | ​
Preferred share repurchases | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.1) | ​ | ​ | (0.1) | ​
Dividends on preferred shares of a subsidiary company - Series 1 (Cdn$0.303125 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.8) | ​ | ​ | (0.8) | ​
Dividends on preferred shares of a subsidiary company - Series 2 (Cdn$0.348125 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.6) | ​ | ​ | (0.6) | ​
Dividends on preferred shares of a subsidiary company - Series 3 (Cdn$0.364858 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.4) | ​ | ​ | (0.4) | ​
Foreign currency translation adjustments |  |  | — | ​ |  | — | ​ |  | (1.6) | ​ |  | (1.6) | ​ |  | — | ​ |  | (1.6) | ​
Balance at September 30, 2019 |  | $ | 1,261.3 | ​ | $ | (1,098.9) | ​ | $ | (143.1) | ​ | $ | 19.3 | ​ | $ | 182.7 | ​ | $ | 202.0 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | Accumulated |  | Total |  | Preferred |  | ​ | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | Other | ​ | Atlantic Power | ​ | Shares of a | ​ | ​ |
​ | ​ | Common | ​ | Retained | ​ | Comprehensive | ​ | Corporation | ​ | Subsidiary | ​ | Total |
​ | ​ | Shares | ​ | Deficit | ​ | (loss) income | ​ | Shareholders' Deficit | ​ | Company | ​ | Equity |
Balance at January 1, 2020 |  | $ | 1,259.9 | ​ | $ | (1,164.2) | ​ | $ | (140.7) | ​ | $ | (45.0) | ​ | $ | 182.7 | ​ | $ | 137.7 | ​
Net income (loss) |  |  | — | ​ |  | 40.0 | ​ |  | — | ​ |  | 40.0 | ​ |  | (2.5) | ​ |  | 37.5 | ​
Share-based compensation |  | ​ | 1.1 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1.1 | ​ | ​ | — | ​ | ​ | 1.1 | ​
Common share repurchases |  |  | (41.6) | ​ |  | — | ​ |  | — | ​ |  | (41.6) | ​ |  | — | ​ |  | (41.6) | ​
Preferred share repurchases | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (6.4) | ​ | ​ | (6.4) | ​
Dividends on preferred shares of a subsidiary company - Series 1 (Cdn$0.909375 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (2.4) | ​ | ​ | (2.4) | ​
Dividends on preferred shares of a subsidiary company - Series 2 (Cdn$1.076064 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (1.9) | ​ | ​ | (1.9) | ​
Dividends on preferred shares of a subsidiary company - Series 3 (Cdn$1.013464 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.7) | ​ | ​ | (0.7) | ​
Realized and unrealized loss on hedging activities, net of tax |  |  | — | ​ |  | — | ​ |  | (0.2) | ​ |  | (0.2) | ​ |  | — | ​ |  | (0.2) | ​
Foreign currency translation adjustments |  |  | — | ​ |  | — | ​ |  | (3.8) | ​ |  | (3.8) | ​ |  | — | ​ |  | (3.8) | ​
Balance at September 30, 2020 |  | $ | 1,219.4 | ​ | $ | (1,124.2) | ​ | $ | (144.7) | ​ | $ | (49.5) | ​ | $ | 168.8 | ​ | $ | 119.3 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | Accumulated |  | Total |  | Preferred |  | ​ | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | Other | ​ | Atlantic Power | ​ | Shares of a | ​ | ​ |
​ | ​ | Common | ​ | Retained | ​ | Comprehensive | ​ | Corporation | ​ | Subsidiary | ​ | Total |
​ | ​ | Shares | ​ | Deficit | ​ | (loss) income | ​ | Shareholders' Equity | ​ | Company | ​ | Equity |
Balance at January 1, 2019 |  | $ | 1,260.9 | ​ | $ | (1,121.6) | ​ | $ | (146.2) | ​ | $ | (6.9) | ​ | $ | 199.3 | ​ | $ | 192.4 | ​
Net income (loss) |  |  | — | ​ |  | 22.7 | ​ |  | — | ​ |  | 22.7 | ​ |  | (3.1) | ​ |  | 19.6 | ​
Share-based compensation |  | ​ | 1.2 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1.2 | ​ | ​ | — | ​ | ​ | 1.2 | ​
Common share repurchases |  |  | (0.8) | ​ |  | — | ​ |  | — | ​ |  | (0.8) | ​ |  | — | ​ |  | (0.8) | ​
Preferred share repurchases | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (8.0) | ​ | ​ | (8.0) | ​
Dividends on preferred shares of a subsidiary company - Series 1 (Cdn$0.909375 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (2.6) | ​ | ​ | (2.6) | ​
Dividends on preferred shares of a subsidiary company - Series 2 (Cdn$1.044375 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (1.8) | ​ | ​ | (1.8) | ​
Dividends on preferred shares of a subsidiary company - Series 3 (Cdn$1.091448 per share) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (1.1) | ​ | ​ | (1.1) | ​
Realized and unrealized loss on hedging activities, net of tax |  |  | — | ​ |  | — | ​ |  | (0.2) | ​ |  | (0.2) | ​ |  | — | ​ |  | (0.2) | ​
Foreign currency translation adjustments |  |  | — | ​ |  | — | ​ |  | 3.3 | ​ |  | 3.3 | ​ |  | — | ​ |  | 3.3 | ​
Balance at September 30, 2019 |  | $ | 1,261.3 | ​ | $ | (1,098.9) | ​ | $ | (143.1) | ​ | $ | 19.3 | ​ | $ | 182.7 | ​ | $ | 202.0 | ​
​

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

X
- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
Name: | us-gaap_ScheduleOfStockholdersEquityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration