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Goodwill and Intangible Assets Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Goodwill $ 244,161 $ 244,283
Non-compete agreements    
Useful Life 5 years 5 years
Minimum | Non-compete agreements    
Useful Life 5 years  
Maximum | Non-compete agreements    
Useful Life 10 years  
Consumer Products    
Goodwill $ 209,100