Segments and Related Information - Supplemental Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Revenues	$ 194,289	$ 189,394	$ 574,017	$ 535,272
Products
Segment Reporting Information [Line Items]
Revenues	102,636	99,743	295,106	284,537
Services
Segment Reporting Information [Line Items]
Revenues	91,653	89,651	278,911	250,735
Project-driven:
Segment Reporting Information [Line Items]
Revenues	75,918	62,332	196,736	185,567
Project-driven: \| Products
Segment Reporting Information [Line Items]
Revenues	45,527	38,911	116,869	113,853
Project-driven: \| Services
Segment Reporting Information [Line Items]
Revenues	30,391	23,421	79,867	71,714
Military and other products
Segment Reporting Information [Line Items]
Revenues	7,195	9,995	22,157	23,104
Short-cycle:
Segment Reporting Information [Line Items]
Revenues	111,176	117,067	355,124	326,601
Short-cycle: \| Products
Segment Reporting Information [Line Items]
Revenues	49,914	50,837	156,080	147,580
Short-cycle: \| Services
Segment Reporting Information [Line Items]
Revenues	61,262	66,230	199,044	179,021
Offshore/Manufactured Products
Segment Reporting Information [Line Items]
Revenues	111,043	96,037	303,328	276,616
Offshore/Manufactured Products \| Project-driven:
Segment Reporting Information [Line Items]
Revenues	75,918	62,332	196,736	185,567
Offshore/Manufactured Products \| Project-driven: \| Products
Segment Reporting Information [Line Items]
Revenues	45,527	38,911	116,869	113,853
Offshore/Manufactured Products \| Project-driven: \| Services
Segment Reporting Information [Line Items]
Revenues	30,391	23,421	79,867	71,714
Offshore/Manufactured Products \| Military and other products
Segment Reporting Information [Line Items]
Revenues	7,195	9,995	22,157	23,104
Offshore/Manufactured Products \| Short-cycle:
Segment Reporting Information [Line Items]
Revenues	27,930	23,710	84,435	67,945
Offshore/Manufactured Products \| Short-cycle: \| Products
Segment Reporting Information [Line Items]
Revenues	27,930	23,710	84,435	67,945
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	59,831	60,509	191,425	163,500
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	59,831	60,509	191,425	163,500
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	59,831	60,509	191,425	163,500
Downhole Technologies
Segment Reporting Information [Line Items]
Revenues	23,415	32,848	79,264	95,156
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	23,415	32,848	79,264	95,156
Downhole Technologies \| Short-cycle: \| Products
Segment Reporting Information [Line Items]
Revenues	21,984	27,127	71,645	79,635
Downhole Technologies \| Short-cycle: \| Services
Segment Reporting Information [Line Items]
Revenues	$ 1,431	$ 5,721	$ 7,619	$ 15,521