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Segments and Related Information - Supplemental Revenue Information by Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 140,528	$ 134,759	$ 411,841	$ 500,698
Project-driven products
Segment Reporting Information [Line Items]
Revenues	25,294	41,004	78,494	129,157
Total short-cycle
Segment Reporting Information [Line Items]
Revenues	90,207	63,949	252,283	277,250
Completion products and services
Segment Reporting Information [Line Items]
Revenues	79,785	57,270	228,418	250,817
Drilling services
Segment Reporting Information [Line Items]
Revenues	3,284	2,479	7,008	7,179
Other products
Segment Reporting Information [Line Items]
Revenues	7,138	4,200	16,857	19,254
Other products and services
Segment Reporting Information [Line Items]
Revenues	25,027	29,806	81,064	94,291
Offshore/Manufactured Products
Segment Reporting Information [Line Items]
Revenues	69,003	78,674	206,520	264,782
Offshore/Manufactured Products | Project-driven products
Segment Reporting Information [Line Items]
Revenues	25,294	41,004	78,494	129,157
Offshore/Manufactured Products | Total short-cycle
Segment Reporting Information [Line Items]
Revenues	18,682	7,864	46,962	41,334
Offshore/Manufactured Products | Completion products and services
Segment Reporting Information [Line Items]
Revenues	11,544	3,664	30,105	22,080
Offshore/Manufactured Products | Drilling services
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Offshore/Manufactured Products | Other products
Segment Reporting Information [Line Items]
Revenues	7,138	4,200	16,857	19,254
Offshore/Manufactured Products | Other products and services
Segment Reporting Information [Line Items]
Revenues	25,027	29,806	81,064	94,291
Downhole Technologies
Segment Reporting Information [Line Items]
Revenues	25,527	18,713	77,717	74,743
Downhole Technologies | Project-driven products
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Downhole Technologies | Total short-cycle
Segment Reporting Information [Line Items]
Revenues	25,527	18,713	77,717	74,743
Downhole Technologies | Completion products and services
Segment Reporting Information [Line Items]
Revenues	25,527	18,713	77,717	74,743
Downhole Technologies | Drilling services
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Downhole Technologies | Other products
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Downhole Technologies | Other products and services
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Well Site Services
Segment Reporting Information [Line Items]
Revenues	45,998	37,372	127,604	161,173
Well Site Services | Project-driven products
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Well Site Services | Total short-cycle
Segment Reporting Information [Line Items]
Revenues	45,998	37,372	127,604	161,173
Well Site Services | Completion products and services
Segment Reporting Information [Line Items]
Revenues	42,714	34,893	120,596	153,994
Well Site Services | Drilling services
Segment Reporting Information [Line Items]
Revenues	3,284	2,479	7,008	7,179
Well Site Services | Other products
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Well Site Services | Other products and services
Segment Reporting Information [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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