Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets - Narrative (Details)

v3.19.3.a.u2
Goodwill and Intangible Assets - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 05, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]        
Amortization of intangible assets   $ 1,121 $ 8,704 $ 9,301
Customer relationships        
Finite-Lived Intangible Assets [Line Items]        
Acquired finite-lived intangible assets, weighted average useful life (in years)   3 years 4 months    
Trade names        
Finite-Lived Intangible Assets [Line Items]        
Acquired finite-lived intangible assets, weighted average useful life (in years)   8 years 3 months 3 days    
Minimum        
Finite-Lived Intangible Assets [Line Items]        
Acquired finite-lived intangible assets, weighted average useful life (in years) 5 years      
Minimum | Customer relationships        
Finite-Lived Intangible Assets [Line Items]        
Finite-lived intangible asset, useful life (in years)   6 years    
Minimum | Trade names        
Finite-Lived Intangible Assets [Line Items]        
Finite-lived intangible asset, useful life (in years)   10 years    
Maximum        
Finite-Lived Intangible Assets [Line Items]        
Acquired finite-lived intangible assets, weighted average useful life (in years) 10 years      
Maximum | Trade names        
Finite-Lived Intangible Assets [Line Items]        
Finite-lived intangible asset, useful life (in years)   20 years