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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Basic and Diluted Earnings Per Common Share | The following table presents the calculation of basic and diluted earnings per common share for our Common and Class B common stock:
Years Ended December 31, |  | 2012 |  |  | 2011 |  |  | 2010 |
Basic Earnings per Share: |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to Watsco, Inc. shareholders |  | $ | 103,334 |  |  | $ | 90,450 |  |  | $ | 80,760 |
Less: distributed and undistributed earnings allocated to non-vested (restricted) common stock |  |  | 17,656 |  |  |  | 6,045 |  |  |  | 4,775 |
Earnings allocated to Watsco, Inc. shareholders |  | $ | 85,678 |  |  | $ | 84,405 |  |  | $ | 75,985 |
Weighted-average Common and Class B common shares outstanding for basic earnings per share |  |  | 31,680,187 |  |  |  | 30,678,206 |  |  |  | 30,467,212 |
Basic earnings per share for Common and Class B common stock |  | $ | 2.70 |  |  | $ | 2.75 |  |  | $ | 2.49 |
Allocation of earnings for Basic: |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  | $ | 78,359 |  |  | $ | 76,574 |  |  | $ | 68,856 |
Class B common stock |  |  | 7,319 |  |  |  | 7,831 |  |  |  | 7,129 |
|  | $ | 85,678 |  |  | $ | 84,405 |  |  | $ | 75,985 |
Diluted Earnings per Share: |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to Watsco, Inc. shareholders |  | $ | 103,334 |  |  | $ | 90,450 |  |  | $ | 80,760 |
Less: distributed and undistributed earnings allocated to non-vested (restricted) common stock |  |  | 17,656 |  |  |  | 6,042 |  |  |  | 4,772 |
Earnings allocated to Watsco, Inc. shareholders |  | $ | 85,678 |  |  | $ | 84,408 |  |  | $ | 75,988 |
Weighted-average Common and Class B common shares outstanding for basic earnings per share |  |  | 31,680,187 |  |  |  | 30,678,206 |  |  |  | 30,467,212 |
Effect of dilutive stock options |  |  | 64,212 |  |  |  | 75,085 |  |  |  | 111,396 |
Weighted-average Common and Class B common shares outstanding for diluted earnings per share |  |  | 31,744,399 |  |  |  | 30,753,291 |  |  |  | 30,578,608 |
Diluted earnings per share for Common and Class B common stock |  | $ | 2.70 |  |  | $ | 2.74 |  |  | $ | 2.49 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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