Revenue from Contract with Customer Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Contract with customer, asset	$ 12,800	$ 25,300	$ 38,300
Revenue	377,715	561,241	560,102
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	225,835	411,284	390,403
Non-US [Member]
Disaggregation of Revenue [Line Items]
Revenue	151,880	149,957	169,699
Completion Fluids & Products Division [Member]
Disaggregation of Revenue [Line Items]
Revenue	242,661	279,255	257,408
Completion Fluids & Products Division [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	100,076	149,191	129,160
Completion Fluids & Products Division [Member] | Non-US [Member]
Disaggregation of Revenue [Line Items]
Revenue	142,585	130,064	128,248
Water & Flowback Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	135,054	281,986	303,072
Water & Flowback Services [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	125,759	262,093	261,238
Water & Flowback Services [Member] | Non-US [Member]
Disaggregation of Revenue [Line Items]
Revenue	9,295	19,893	41,834
Interdivision Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	(378)
Interdivision Eliminations [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	0	0	5
Interdivision Eliminations [Member] | Non-US [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0	$ (383)