Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangibles - Other intangible assets (Details)

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Goodwill and Other Intangibles - Other intangible assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Other intangible assets          
Gross definite-lived intangible assets $ 219,382   $ 219,382   $ 54,872
Accumulated amortization (9,037)   (9,037)   (21,629)
Net definite-lived intangible assets 210,345   210,345   $ 33,243
Amortization expense 3,992 $ 257 5,294 $ 439  
Trademarks          
Other intangible assets          
Gross definite-lived intangible assets 13,435   13,435    
Accumulated amortization (575)   (575)    
Net definite-lived intangible assets 12,860   12,860    
Customer Lists          
Other intangible assets          
Gross definite-lived intangible assets 198,428   198,428    
Accumulated amortization (6,957)   (6,957)    
Net definite-lived intangible assets 191,471   191,471    
Non-Compete          
Other intangible assets          
Gross definite-lived intangible assets 7,519   7,519    
Accumulated amortization (1,505)   (1,505)    
Net definite-lived intangible assets $ 6,014   $ 6,014