Commitments and Contingencies - Schedule of Contingent Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Loss Contingency Accrual [Roll Forward]
Beginning balance		$ 3,968
Revaluation adjustments		781
Payments		(1,331)
Terminations		(2,250)
Ending balance		1,168
Frac Tech
Loss Contingency Accrual [Roll Forward]
Beginning balance	$ 604	1,359
Revaluation adjustments	(124)	15
Payments	(110)	(206)
Terminations		0
Ending balance	$ 370	1,168
Magnum
Loss Contingency Accrual [Roll Forward]
Beginning balance		2,609
Revaluation adjustments		766
Payments		(1,125)
Terminations		(2,250)
Ending balance		$ 0