Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Value, Liabilities Measured on Recurring Basis

A summary of significant recurring fair value measurements by valuation hierarchy as of December 31, 2020 and December 31, 2019, is as follows:

			Fair Value Measurements Using
	Total as of		Quoted Prices in Active Markets for Identical Assets or Liabilities	Significant Other Observable Inputs	Significant Unobservable Inputs
Description	Dec 31, 2020		(Level 1)	(Level 2)	(Level 3)
	(In Thousands)
Investment in Standard Lithium	$	2,675	—	2,675	—
Warrants liability	(198)		—	—	(198)

			Fair Value Measurements Using
	Total as of		Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs		Significant Unobservable Inputs
Description	Dec 31, 2019		(Level 1)		(Level 2)		(Level 3)
	(In Thousands)
Investment in Standard Lithium	$	520	$	—	$	520	$	—
Warrants liability	(449)		—		—		(449)

Fair Value Measurements, Nonrecurring

A summary of these nonrecurring fair value measurements during the year ended December 31, 2019, using the fair value hierarchy, is as follows:

			Fair Value Measurements Using
Description	Fair Value		Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Year-to-Date Impairment Losses
	(In Thousands)
Completion Fluids & Products production facility	$	9,459	$	—	$	—	$	9,459	$	91,606
Water & Flowback Services goodwill	$	—	—		—		—		25,784
Water & Flowback Services equipment	$	—	—		—		—		284
Total	$	9,459							$	117,674