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Goodwill and Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Intangible Assets, Net

Intangible assets, net, consist of the following (in thousands):

 

     December 31, 2015  
     Gross
Carrying
Value
     Accumulated
Amortization
     Net
Carrying
Value
     Weighted
Average
Amortization
Period (1)

(in years)
 

Physician and hospital agreements

   $ 265,465       $ (130,050    $ 135,415         0.4   

Customer relationships

     248,880         (10,612      238,268         9.9   

Trade names

     28,620         (597      28,023         1.2   

Patented technology

     24,230         (1,717      22,513         0.6   
  

 

 

    

 

 

    

 

 

    
   $ 567,195       $ (142,976    $ 424,219      
  

 

 

    

 

 

    

 

 

    

 

(1) The weighted average amortization period includes amortization expense related to years beyond 2020 of approximately $229.3 million.

 

     December 31, 2014  
     Gross
Carrying
Value
     Accumulated
Amortization
     Net
Carrying
Value
     Weighted
Average
Amortization
Period (2)

(in years)
 

Physician and hospital agreements

   $ 216,458       $ (98,145    $ 118,313         0.8   

Customer relationships

     75,460         (2,634      72,826         7.2   

Trade names

     7,150         (153      6,997         0.7   
  

 

 

    

 

 

    

 

 

    
   $ 299,068       $ (100,932    $ 198,136      
  

 

 

    

 

 

    

 

 

    

 

(2) The weighted average amortization period includes amortization expense related to years beyond 2019 of approximately $69.1 million.
Amortization Expenses for Existing Other Intangible Assets for the Next Five Years

Amortization expense for existing other intangible assets for the next five years is expected to be as follows (in thousands):

 

2016

   $ 48,967   

2017

     43,173   

2018

     38,639   

2019

     34,600   

2020

     29,535