Segments and Related Information - Supplemental Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Revenues	$ 183,529	$ 181,834	$ 379,728	$ 345,878
Products
Segment Reporting Information [Line Items]
Revenues	92,630	99,033	192,470	184,794
Services
Segment Reporting Information [Line Items]
Revenues	90,899	82,801	187,258	161,084
Project-driven:
Segment Reporting Information [Line Items]
Revenues	57,056	65,093	120,818	123,235
Project-driven: \| Products
Segment Reporting Information [Line Items]
Revenues	32,210	41,098	71,342	74,942
Project-driven: \| Services
Segment Reporting Information [Line Items]
Revenues	24,846	23,995	49,476	48,293
Military and other products
Segment Reporting Information [Line Items]
Revenues	7,965	7,763	14,962	13,109
Short-cycle:
Segment Reporting Information [Line Items]
Revenues	118,508	108,978	243,948	209,534
Short-cycle: \| Products
Segment Reporting Information [Line Items]
Revenues	52,455	50,172	106,166	96,743
Short-cycle: \| Services
Segment Reporting Information [Line Items]
Revenues	66,053	58,806	137,782	112,791
Offshore/Manufactured Products
Segment Reporting Information [Line Items]
Revenues	94,086	96,467	192,285	180,579
Offshore/Manufactured Products \| Project-driven:
Segment Reporting Information [Line Items]
Revenues	57,056	65,093	120,818	123,235
Offshore/Manufactured Products \| Project-driven: \| Products
Segment Reporting Information [Line Items]
Revenues	32,210	41,098	71,342	74,942
Offshore/Manufactured Products \| Project-driven: \| Services
Segment Reporting Information [Line Items]
Revenues	24,846	23,995	49,476	48,293
Offshore/Manufactured Products \| Military and other products
Segment Reporting Information [Line Items]
Revenues	7,965	7,763	14,962	13,109
Offshore/Manufactured Products \| Short-cycle:
Segment Reporting Information [Line Items]
Revenues	29,065	23,611	56,505	44,235
Offshore/Manufactured Products \| Short-cycle: \| Products
Segment Reporting Information [Line Items]
Revenues	29,065	23,611	56,505	44,235
Offshore/Manufactured Products \| Short-cycle: \| Services
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Well Site Services
Segment Reporting Information [Line Items]
Revenues	64,536	54,819	131,594	102,991
Well Site Services \| Project-driven:
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Well Site Services \| Project-driven: \| Products
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Well Site Services \| Project-driven: \| Services
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Well Site Services \| Military and other products
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Well Site Services \| Short-cycle:
Segment Reporting Information [Line Items]
Revenues	64,536	54,819	131,594	102,991
Well Site Services \| Short-cycle: \| Products
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Well Site Services \| Short-cycle: \| Services
Segment Reporting Information [Line Items]
Revenues	64,536	54,819	131,594	102,991
Downhole Technologies
Segment Reporting Information [Line Items]
Revenues	24,907	30,548	55,849	62,308
Downhole Technologies \| Project-driven:
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Downhole Technologies \| Project-driven: \| Products
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Downhole Technologies \| Project-driven: \| Services
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Downhole Technologies \| Military and other products
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Downhole Technologies \| Short-cycle:
Segment Reporting Information [Line Items]
Revenues	24,907	30,548	55,849	62,308
Downhole Technologies \| Short-cycle: \| Products
Segment Reporting Information [Line Items]
Revenues	23,390	26,561	49,661	52,508
Downhole Technologies \| Short-cycle: \| Services
Segment Reporting Information [Line Items]
Revenues	$ 1,517	$ 3,987	$ 6,188	$ 9,800