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Concentrations Risks and Uncertainties (Details) $ in Millions	1 Months Ended	3 Months Ended
	Mar. 31, 2020 USD ($) position	Mar. 31, 2020 USD ($) position customer	Mar. 31, 2019 USD ($) customer	Dec. 31, 2019 USD ($)
Customer \| Total revenues
Concentrations, Risks and Uncertainties
Number of Customers \| customer		1	1
Concentration of risk (as a percent)		10.00%	12.00%
Supplier concentration \| Purchases
Concentrations, Risks and Uncertainties
Concentration of risk (as a percent)		7.00%	20.00%
Purchases from the vendor		$ 2.9	$ 12.7
Accounts Payable	$ 1.9	$ 1.9		$ 4.3
Low Oil Prices And The Coronavirus (COVID-19) [Member]
Concentrations, Risks and Uncertainties
Restructuring and Related Cost, Number of Positions Eliminated \| position	277	277
Low Oil Prices And The Coronavirus (COVID-19) [Member] \| Chief Executive Officer [Member]
Concentrations, Risks and Uncertainties
Reduction To Salary	50.00%
Low Oil Prices And The Coronavirus (COVID-19) [Member] \| Executive officers \| Maximum
Concentrations, Risks and Uncertainties
Reduction To Salary	50.00%
Low Oil Prices And The Coronavirus (COVID-19) [Member] \| Executive officers \| Minimum
Concentrations, Risks and Uncertainties
Reduction To Salary	25.00%
Low Oil Prices And The Coronavirus (COVID-19) [Member] \| United States Workforce [Member] \| Maximum
Concentrations, Risks and Uncertainties
Reduction To Salary	15.00%
Low Oil Prices And The Coronavirus (COVID-19) [Member] \| United States Workforce [Member] \| Minimum
Concentrations, Risks and Uncertainties
Reduction To Salary	2.00%
Low Oil Prices And The Coronavirus (COVID-19) [Member] \| Board of Directors
Concentrations, Risks and Uncertainties
Reduction To Compensation	25.00%