Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets (Tables)

v3.8.0.1
Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of gross carrying amounts included within goodwill and intangible assets, related accumulated amortization and the weighted average amortization periods of intangible assets
    December 31, 2017  
    Gross Carrying
Amount		     Accumulated
Amortization		     Net Carrying
Amount		     Weighted-
Average
Amortization
Period (Years)		  
Customer relationship   $ 120,000     $ (66,866 )   $ 53,134       6.0  
Licenses     3,368       (1,601 )     1,767       5.6  
Non-compete agreements     660       (660 )     —       1.0  
Total intangible assets subject to amortization   $ 124,028     $ (69,127 )   $ 54,901          

 

    December 31, 2016  
    Gross Carrying
Amount		     Accumulated
Amortization		     Net Carrying
Amount		     Weighted-
Average
Amortization
Period (Years)		  
Customer relationship   $ 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     $ —     $ —          
Schedule of aggregate amortization expense
    Year Ended December 31,  
    2017     2016     2015  
Amortization expense   $ 31,232     $ 22,160     $ 73,207  
Schedule of estimated aggregate amortization expense
Year ended December 31,   Amortization
Expense		  
2018   $ 26,163  
2019     18,489  
2020     9,906  
2021     75  
2022     75