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Revenue Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 47,488	$ 51,775
Sand sales revenue
Disaggregation of Revenue [Line Items]
Revenue	30,008	25,647
Shortfall revenue
Disaggregation of Revenue [Line Items]
Revenue	1,307	5,756
Logistics revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 16,173	$ 20,372
Product Concentration Risk | Percentage of Total Revenue
Disaggregation of Revenue [Line Items]
Percentage of Total Revenue	100.00%	100.00%
Product Concentration Risk | Percentage of Total Revenue | Sand sales revenue
Disaggregation of Revenue [Line Items]
Percentage of Total Revenue	63.00%	50.00%
Product Concentration Risk | Percentage of Total Revenue | Shortfall revenue
Disaggregation of Revenue [Line Items]
Percentage of Total Revenue	3.00%	11.00%
Product Concentration Risk | Percentage of Total Revenue | Logistics revenue
Disaggregation of Revenue [Line Items]
Percentage of Total Revenue	34.00%	39.00%

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No definition available.

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