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Acquisitions - Additional Information (Details) - USD ($)
$ in Millions
Apr. 03, 2018
Feb. 13, 2018
Apr. 19, 2018
Layne Christensen Company [Member]      
Business Acquisition [Line Items]      
Stock-for-stock merger exchange ratio   27.00%  
Layne Christensen Company [Member] | Subsequent Event      
Business Acquisition [Line Items]      
Purchase price     $ 333.7
Merger, debt assumed     $ 200.0
LiquiForce Services Company [Member] | Subsequent Event      
Business Acquisition [Line Items]      
Business consideration funded through revolving credit facility $ 35.0