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Basic and diluted net earnings per share - Schedule of Earnings per Share (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Class of Stock [Line Items] |  |
Net earnings attributable to shareholders of APUC | $ 530,884 | $ 184,988
Series A and D Preferred shares dividend | 8,486 | 8,027
Net earnings attributable to common shareholders of APUC from continuing operations – basic and diluted | $ 522,398 | $ 176,961
Weighted average number of shares |  |
Basic (in shares) | 499,910,876 | 461,818,023
Effect of dilutive securities (in shares) | 4,828,678 | 4,227,595
Diluted (in shares) | 504,739,554 | 466,045,618
Series A Preferred Stock |  |
Class of Stock [Line Items] |  |
Series A and D Preferred shares dividend | $ 4,666 | $ 4,169
Series D Preferred Stock |  |
Class of Stock [Line Items] |  |
Series A and D Preferred shares dividend | $ 3,820 | $ 3,858

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