Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets

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Intangible Assets
9 Months Ended
Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets
3. Intangible Assets

 

The carrying amounts of intangible assets subject to amortization are included within other long-term assets. As of September 30, 2017, the carrying amount of the indefinite-lived license is included in prepaid expenses and other assets as it is held for sale. The gross carrying amounts of intangible assets, the related accumulated amortization, the net carrying amounts and the weighted-average amortization periods of the Company’s intangible assets are listed in the following tables (in thousands, except amortization period):

 

    September 30, 2017        
    Gross Carrying
Amount
    Accumulated
Amortization
    Net Carrying
Amount
    Weighted-
Average
Amortization
Period (Years)
 
Customer relationships   $ 120,000     $ (59,298 )   $ 60,702       6.0  
Licenses     3,368       (1,382 )     1,986       5.6  
Non-compete agreements     660       (660 )           1.0  
Total intangible assets subject to amortization   $ 124,028     $ (61,340 )   $ 62,688          
License (Indefinite-lived)   $ 4,427                          

 

    December 31, 2016  
    Gross Carrying
Amount
    Accumulated
Amortization
    Net Carrying
Amount
    Weighted-
Average
Amortization
Period (Years)
 
Customer relationships   $ 120,000     $ (36,593 )   $ 83,407       6.0  
Licenses     3,368       (807 )     2,561       5.6  
Non-compete agreements     660       (495 )     165       1.0  
Total intangible assets subject to amortization   $ 124,028     $ (37,895 )   $ 86,133          
License (Indefinite-lived)   $ 4,427                          

 

The aggregate amortization expense is as follows (in thousands):

 

    Three Months Ended
September 30,
    Nine Months Ended
September 30,
 
    2017     2016     2017     2016  
Amortization expense   $ 7,780     $ 5,601     $ 23,445     $ 16,552  

 

The following table sets forth the Company’s estimated aggregate amortization expense for each of the five years below (in thousands):

 

Year ended December 31,   Amortization
Expense
 
2018   $ 26,163  
2019     18,489  
2020     9,906  
2021     75  
2022     75