Business Segment Information - Summary Of Financial Data By Segment (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Segment Information
Net revenues		$ 873,100	$ 674,728	$ 733,555
Income (loss) from operations		(44,855)	(48,687)	13,025
Change in fair value of contingent consideration	$ (16,054)	(16,054)
Goodwill impairment				(6,689)
Net interest expense		(18,950)	(23,201)	(28,531)
Other non-operating income (expense), net		(11,376)	1,246	16,889
Income (loss) before income taxes		(75,181)	(70,642)	1,383
Capital expenditures		33,504	8,322	20,244
Depreciation and amortization		142,686	141,514	133,709
Reportable Segments
Business Segment Information
Income (loss) from operations		26,310	(7,214)	56,585
Change in fair value of contingent consideration		(16,054)
Goodwill impairment				(6,689)
Intercompany Eliminations
Business Segment Information
Net revenues		(50,187)	(48,479)	(42,015)
Corporate, Eliminations and Other
Business Segment Information
Income (loss) from operations		(55,111)	(41,473)	(36,871)
Capital expenditures		1,176	(917)	464
Depreciation and amortization		(167)	(660)	349
Well Intervention
Business Segment Information
Net revenues		524,241	516,564	539,249
Goodwill impairment				(6,689)
Well Intervention | Reportable Segments
Business Segment Information
Net revenues		524,241	516,564	539,249
Income (loss) from operations		(53,056)	(35,882)	26,855
Capital expenditures		17,617	2,349	19,523
Depreciation and amortization		103,952	107,551	101,756
Well Intervention | Intercompany Eliminations
Business Segment Information
Net revenues		(16,545)	(21,521)	(15,039)
Robotics
Business Segment Information
Net revenues		191,921	137,295	178,018
Robotics | Reportable Segments
Business Segment Information
Net revenues		191,921	137,295	178,018
Income (loss) from operations		29,981	5,762	13,755
Capital expenditures		15,603	120	257
Depreciation and amortization		12,209	15,158	15,952
Robotics | Intercompany Eliminations
Business Segment Information
Net revenues		(33,642)	(26,958)	(26,976)
Shallow Water Abandonment
Business Segment Information
Net revenues		124,810
Shallow Water Abandonment | Reportable Segments
Business Segment Information
Net revenues		124,810
Income (loss) from operations		22,184
Capital expenditures		532
Depreciation and amortization		8,172
Production Facilities
Business Segment Information
Net revenues		82,315	69,348	58,303
Production Facilities | Reportable Segments
Business Segment Information
Net revenues		82,315	69,348	58,303
Income (loss) from operations		27,201	22,906	15,975
Capital expenditures		(1,424)	6,770
Depreciation and amortization		$ 18,520	$ 19,465	$ 15,652