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Goodwill and Intangibles - Additional Information (Detail)
$ in Millions
Jul. 17, 2017
USD ($)
Schedule Of Goodwill And Intangible Assets [Line Items]  
Measurement period 1 year
JK Environmental Services LLC [Member]  
Schedule Of Goodwill And Intangible Assets [Line Items]  
Purchase price of business assets $ 2.3