XML 26 R31.htm IDEA: XBRL DOCUMENT v3.2.0.727
Computation of Basic and Diluted Earnings per Share (Detail) - Entity [Domain] - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Basic and Diluted:        
Net income attributable to UHS $ 182,193 $ 151,671 $ 356,492 $ 289,749
Less: Net income attributable to unvested restricted share grants (71) (77) (139) (147)
Net income attributable to UHS - basic and diluted $ 182,122 $ 151,594 $ 356,353 $ 289,602
Weighted average number of common shares - basic 99,004 98,872 98,957 98,722
Net effect of dilutive stock options and grants based on the treasury stock method 1,923 1,363 1,830 1,474
Weighted average number of common shares and equivalents - diluted 100,927 100,235 100,787 100,196
Earnings per basic share attributable to UHS $ 1.84 $ 1.53 $ 3.60 $ 2.93
Earnings per diluted share attributable to UHS $ 1.80 $ 1.51 $ 3.54 $ 2.89