Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets - Narrative (Details)

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Goodwill and Intangible Assets - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]        
Amortization of intangible assets   $ 1,001 $ 1,015 $ 1,121
Customer relationships        
Finite-Lived Intangible Assets [Line Items]        
Impairment of finite lived intangible assets $ 100     800
Customer relationships | WTL Oil LLC        
Finite-Lived Intangible Assets [Line Items]        
Impairment of finite lived intangible assets       $ 800
Trade names        
Finite-Lived Intangible Assets [Line Items]        
Acquired finite-lived intangible assets, weighted average useful life (in years)   3 years 11 months 12 days    
Minimum | Trade names        
Finite-Lived Intangible Assets [Line Items]        
Finite-lived intangible asset, 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