Segment Reporting (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2020 USD ($)	Mar. 31, 2020 segment	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment		2		2
Revenue	$ 105,382		$ 173,200	$ 373,518	$ 511,432
Segment operating income (loss)	11,331		31,207	(100,209)	75,629
Total assets (at end of period)	590,814		787,696	590,814	787,696	$ 774,673
Capital expenditures	2,172		5,307	8,578	17,537
Depreciation and amortization	5,164		5,697	16,030	17,070
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	0		0	0	0
Reservoir Description [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	80,060		109,339	271,203	318,280
Segment operating income (loss)	11,022		18,835	35,618	40,892
Total assets (at end of period)	306,369		347,475	306,369	347,475
Capital expenditures	1,377		3,260	4,609	7,906
Depreciation and amortization	3,391		3,684	10,364	11,505
Reservoir Description [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	43		99	205	346
Production Enhancement [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	25,322		63,861	102,315	193,152
Segment operating income (loss)	(321)		11,456	(137,944)	31,792
Total assets (at end of period)	128,832		287,431	128,832	287,431
Capital expenditures	641		1,982	3,753	9,114
Depreciation and amortization	1,512		1,650	4,860	4,377
Production Enhancement [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	39		199	443	419
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenue	0		0
Segment operating income (loss)	630		916	2,117	2,945
Total assets (at end of period)	155,613		152,790	155,613	152,790
Capital expenditures	154		65	216	517
Depreciation and amortization	261		363	806	1,188
Corporate and Other [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	$ (82)		$ (298)	$ (648)	$ (765)