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Revenue Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 27,450	$ 47,488
Sand sales revenue
Disaggregation of Revenue [Line Items]
Revenue	23,147	30,008
Shortfall revenue
Disaggregation of Revenue [Line Items]
Revenue	1,741	1,307
Logistics revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 2,562	$ 16,173
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	84.00%	63.00%
Product Concentration Risk | Percentage of Total Revenue | Shortfall revenue
Disaggregation of Revenue [Line Items]
Percentage of Total Revenue	6.00%	3.00%
Product Concentration Risk | Percentage of Total Revenue | Logistics revenue
Disaggregation of Revenue [Line Items]
Percentage of Total Revenue	9.00%	34.00%

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