Fair Value Measurements - Market Risks and Derivative Hedge Contracts (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Net asset	$ 12,799	$ 2,477
CSI Compressco
Derivatives, Fair Value [Line Items]
Net asset	9,533
CSI Compressco | Fair Value, Inputs, Level 1 [Member]
Derivatives, Fair Value [Line Items]
Net asset	9,533
CSI Compressco | Fair Value, Inputs, Level 2 [Member]
Derivatives, Fair Value [Line Items]
Net asset	0
CSI Compressco | Fair Value, Inputs, Level 3 [Member]
Derivatives, Fair Value [Line Items]
Net asset	0
Standard Lithium
Derivatives, Fair Value [Line Items]
Net asset	3,787	(2,675)
Standard Lithium | Fair Value, Inputs, Level 1 [Member]
Derivatives, Fair Value [Line Items]
Net asset	3,787	(2,675)
Standard Lithium | Fair Value, Inputs, Level 2 [Member]
Derivatives, Fair Value [Line Items]
Net asset	0	0
Standard Lithium | Fair Value, Inputs, Level 3 [Member]
Derivatives, Fair Value [Line Items]
Net asset	0	0
Warrants liability
Derivatives, Fair Value [Line Items]
Net asset	(521)	(198)
Warrants liability | Fair Value, Inputs, Level 1 [Member]
Derivatives, Fair Value [Line Items]
Net asset	0	0
Warrants liability | Fair Value, Inputs, Level 2 [Member]
Derivatives, Fair Value [Line Items]
Net asset	0	0
Warrants liability | Fair Value, Inputs, Level 3 [Member]
Derivatives, Fair Value [Line Items]
Net asset	$ (521)	$ (198)