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Earnings Per Share Data ("EPS") and Stock Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2012
Earnings Per Share Data ("EPS") and Stock Based Compensation [Abstract] |
Computation of basic and diluted earnings per share |
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | (amounts in thousands) |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Basic and Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to UHS |  | $ | 71,817 |  |  | $ | 85,054 |  |  | $ | 307,985 |  |  | $ | 302,896 |
Less: Net income attributable to unvested restricted share grants |  |  | (85 | ) |  |  | (165 | ) |  |  | (379 | ) |  |  | (440 | )
Net income attributable to UHS—basic and diluted |  | $ | 71,732 |  |  | $ | 84,889 |  |  | $ | 307,606 |  |  | $ | 302,456 |
Weighted average number of common shares—basic |  |  | 96,817 |  |  |  | 97,397 |  |  |  | 96,701 |  |  |  | 97,447 |
Net effect of dilutive stock options and grants based on the treasury stock method |  |  | 794 |  |  |  | 1,201 |  |  |  | 1,010 |  |  |  | 1,461 |
Weighted average number of common shares and equivalents—diluted |  |  | 97,611 |  |  |  | 98,598 |  |  |  | 97,711 |  |  |  | 98,908 |
Earnings per basic share attributable to UHS: |  | $ | 0.74 |  |  | $ | 0.87 |  |  | $ | 3.18 |  |  | $ | 3.10 |
Earnings per diluted share attributable to UHS: |  | $ | 0.73 |  |  | $ | 0.86 |  |  | $ | 3.15 |  |  | $ | 3.06 |

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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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