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Earnings Per Share | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share A reconciliation between basic and diluted earnings per share is as follows (in thousands, except per share data):
| Year Ended December 31, |  |  |  |
| 2019 |  | 2018 |  | 2017
Net Income attributable to Royal Caribbean Cruises Ltd. for basic and diluted earnings per share | $ | 1,878,887 |  |  | $ | 1,811,042 |  |  | $ | 1,625,133 |
Weighted-average common shares outstanding | 209,405 |  |  | 210,570 |  |  | 214,617 |
Dilutive effect of stock-based awards | 525 |  |  | 984 |  |  | 1,077 |
Diluted weighted-average shares outstanding | 209,930 |  |  | 211,554 |  |  | 215,694 |
Basic earnings per share | $ | 8.97 |  |  | $ | 8.60 |  |  | $ | 7.57 |
Diluted earnings per share | $ | 8.95 |  |  | $ | 8.56 |  |  | $ | 7.53 |
There were no antidilutive shares for the years ended December 31, 2019, 2018 and 2017.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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