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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2016
Accounting Policies [Abstract]  
Schedule of Net Revenue by Service Line

The following table summarizes the Company’s net revenue by service line (in percentages):

 

     Years Ended December 31,  
     2016     2015     2014  

Neonatology and other pediatric subspecialties

      39 %      44 %      50 % 

Anesthesiology

      39 %      37 %      36 % 

Maternal-fetal medicine

      8 %      9 %      9 % 

Radiology

      6 %      4 %      —     

Management services

      5 %      2 %      1 % 

Pediatric cardiology

      3 %      4 %      4 % 
  

 

 

    

 

 

    

 

 

  
     100 %      100 %      100 %