Exhibit 12.1



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|---------------------------------------------------- |  | ----------------------- | ------- | - | -------------------------------------------------- | - | ------- | ---------------------------------------------------- |  | - | ------------------------------- | - |  | - | ------- | - |  | - | ------ | --- |  | - | ------- | --- |  | - | ------ | -
|                                                     |  | Predecessor Entity      |         |   | Successor Entity                                   |  
|                                                     |  | Year Ended December 31, |         |   | For
theperiod fromJanuary 1,2010throughMay 7, 2010 |   |         | For
theperiod fromMay 8, 2010throughDecember 31,2010 |  |   | Three 
MonthsEndedMarch 31,2011 |  
|                                                     |  | 2006                    |         |   | 2007                                               |   |         | 2008                                                 |  |   | 2009                            |   |  |   |        
|Earnings adjusted for fixed charges:                 |  |                         |         |   |                                                    |   |         |                                                      |  |   |                                 |   |  |   |         |   |  |   |        |     |  |   |         |     |  |   |        |  
|Income from operations before income taxes           |  | $                       | 16,375  |   |                                                    | $ | 19,866  |                                                      |  | $ | 27,683                          |   |  | $ | 37,053  |   |  | $ | 8,846  |     |  | $ | 6,421   |     |  | $ | 8,601  |  
|Add: Interest expense                                |  |                         | 12,845  |   |                                                    |   | 13,695  |                                                      |  |   | 13,729                          |   |  |   | 14,948  |   |  |   | 5,717  |     |  |   | 14,821  |     |  |   | 5,750  |  
|Add: Estimate of implicit interest in rental expense |  |                         | 1,628   |   |                                                    |   | 1,920   |                                                      |  |   | 2,747                           |   |  |   | 3,051   |   |  |   | 1,124  |     |  |   | 2,432   |     |  |   | 907    |  
|Less: Noncontrolling interests                       |  |                         | (11,833 | ) |                                                    |   | (14,706 | )                                                    |  |   | (17,179                         | ) |  |   | (22,391 | ) |  |   | (9,266 | )   |  |   | (18,444 | )   |  |   | (7,549 | )
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|Total adjustments                                    |  |                         | 2,640   |   |                                                    |   | 909     |                                                      |  |   | (703                            | ) |  |   | (4,392  | ) |  |   | (2,425 | )   |  |   | (1,191  | )   |  |   | (892   | )
|Adjusted income from operations                      |  | $                       | 19,015  |   |                                                    | $ | 20,775  |                                                      |  | $ | 26,980                          |   |  | $ | 32,661  |   |  | $ | 6,421  |     |  | $ | 5,230   |     |  | $ | 7,709  |  
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|Fixed charges:                                       |  |                         |         |   |                                                    |   |         |                                                      |  |   |                                 |   |  |   |         |   |  |   |        |     |  |   |         |     |  |   |        |  
|Interest expense                                     |  | $                       | 12,845  |   |                                                    | $ | 13,695  |                                                      |  | $ | 13,729                          |   |  | $ | 14,948  |   |  | $ | 5,717  |     |  | $ | 14,821  |     |  | $ | 5,750  |  
|Interest portion of rent expense                     |  |                         | 1,628   |   |                                                    |   | 1,920   |                                                      |  |   | 2,747                           |   |  |   | 3,051   |   |  |   | 1,124  |     |  |   | 2,432   |     |  |   | 907    |  
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|Total fixed charges                                  |  | $                       | 14,473  |   |                                                    | $ | 15,615  |                                                      |  | $ | 16,476                          |   |  | $ | 17,999  |   |  | $ | 6,841  |     |  | $ | 17,253  |     |  | $ | 6,657  |  
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|Ratio of earnings to fixed charges                   |  |                         | 1.31    |   |                                                    |   | 1.33    |                                                      |  |   | 1.64                            |   |  |   | 1.81    |   |  |   | 0.94   | (1) |  |   | 0.30    | (2) |  |   | 1.15   |  
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|(1) | Earnings were insufficient to cover fixed charges by $0.4 million.
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|(2) | Earnings were insufficient to cover fixed charges by $12.0 million.
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