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Earnings per CPO/Share (Details) shares in Thousands | 12 Months Ended
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Dec. 31, 2020 $ / shares $ / EquityInstruments shares | Dec. 31, 2019 $ / shares $ / EquityInstruments shares | Dec. 31, 2018 $ / shares $ / EquityInstruments
Basic weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Total Shares | 330,685,559 | 338,375,192 |
Basic earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Basic earnings per CPO attributable to stockholders of the Company | $ / EquityInstruments | (0.44) | 1.60 | 2.07
Diluted weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Total Shares | 352,237,926 | 354,827,433 |
CPOs (in CPO units) | 2,486,783 | 2,508,916 |
Diluted earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Diluted earnings per CPO attributable to stockholders of the Company | $ / EquityInstruments | (0.41) | 1.53 | 1.96
Series "A" Shares |  |  |
Basic weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Shares not in the form of CPO units | 55,563,596 | 56,077,584 |
Basic earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Basic earnings per share | $ / shares | $ 0.00 | $ 0.01 | $ 0.02
Diluted weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Shares not in the form of CPO units | 58,926,613 | 58,926,613 |
Diluted earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Diluted earnings per Share | $ / shares | $ 0.00 | $ 0.01 | 0.02
Series "B" Shares |  |  |
Basic weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Shares not in the form of CPO units | 187 | 187 |
Basic earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Basic earnings per share | $ / shares | $ 0.00 | $ 0.01 | 0.02
Diluted weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Shares not in the form of CPO units | 2,357,208 | 2,357,208 |
Diluted earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Diluted earnings per Share | $ / shares | $ 0.00 | $ 0.01 | 0.02
Series "D" Shares |  |  |
Basic weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Shares not in the form of CPO units | 239 | 239 |
Basic earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Basic earnings per share | $ / shares | $ 0.00 | $ 0.01 | 0.02
Diluted weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Shares not in the form of CPO units | 239 | 239 |
Diluted earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Diluted earnings per Share | $ / shares | $ 0.00 | $ 0.01 | 0.02
Series "L" Shares |  |  |
Basic weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Shares not in the form of CPO units | 239 | 239 |
Basic earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Basic earnings per share | $ / shares | $ 0.00 | $ 0.01 | 0.02
Diluted weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
Shares not in the form of CPO units | 239 | 239 |
Diluted earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Diluted earnings per Share | $ / shares | $ 0.00 | $ 0.01 | $ 0.02
CPOs |  |  |
Basic weighted average of outstanding total shares, CPOs and Series of Shares (not in the form of CPO unit) |  |  |
CPOs (in CPO units) | 2,351,464 | 2,412,794 |
Basic earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Basic earnings per CPO attributable to stockholders of the Company | $ / EquityInstruments | (0.44) | 1.60 | 2.07
Diluted earnings per CPO and per each Series of Shares (not in the form of a CPO unit) |  |  |
Diluted earnings per CPO attributable to stockholders of the Company | $ / EquityInstruments | (0.41) | 1.53 | 1.96

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