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Business Segment Information | 12 Months Ended
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Dec. 31, 2022
Segment Reporting [Abstract] |
Business Segment Information | Note 14 — Business Segment Information Through the second quarter 2022, we have three reportable business segments: Well Intervention, Robotics and Production Facilities. Beginning in the third quarter 2022 as a result of the Alliance acquisition (Note 3), we formed a new reportable business segment: Shallow Water Abandonment, which includes the assets, liabilities and operating results of Helix Alliance. All material intercompany transactions between the segments have been eliminated. Our U.S., U.K. and Brazil well intervention operating segments are aggregated into the Well Intervention segment for financial reporting purposes. Our Well Intervention segment provides services enabling our customers to safely access offshore wells for the purpose of performing production enhancement or decommissioning operations primarily in the Gulf of Mexico, Brazil, the North Sea and West Africa, with expansion into Asia Pacific. Our well intervention vessels include the Q4000, the Q5000, the Q7000, the Seawell, the Well Enhancer, and the Siem Helix 1 and Siem Helix 2 chartered vessels. Our well intervention equipment includes intervention systems, some of which we provide on a stand-alone basis. Our Robotics segment provides trenching, seabed clearance, offshore construction and IRM services to both the oil and gas and the renewable energy markets globally. Additionally, our Robotics services are used in and complement our well intervention services. Our Robotics segment includes ROVs, trenchers, the IROV boulder grab and robotics support vessels under term charters as well as spot vessels as needed. Our Shallow Water Abandonment segment provides services in support of the upstream and midstream ‎industries in the Gulf of Mexico shelf, including offshore oilfield decommissioning and ‎reclamation, project management, engineered solutions, intervention, maintenance, repair, heavy lift and commercial diving services. Our Shallow Water Abandonment segment operates a diversified fleet of marine assets including liftboats, OSVs, DSVs, a heavy lift derrick barge, a crew boat and P&A and coiled tubing systems. Our Production Facilities segment includes the HP I, the HFRS and our ownership of oil and gas properties (Note 15). We evaluate our performance based on operating income of each reportable segment. Certain financial data by reportable segment are summarized as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ | 2022 |  | 2021 |  | 2020
Net revenues — | ​ | ​ |  | ​ | ​ |  |  | ​ |
Well Intervention | ​ | $ | 524,241 | ​ | $ | 516,564 | ​ | $ | 539,249
Robotics | ​ |  | 191,921 | ​ |  | 137,295 | ​ |  | 178,018
Shallow Water Abandonment | ​ | ​ | 124,810 | ​ | ​ | — | ​ | ​ | —
Production Facilities | ​ |  | 82,315 | ​ |  | 69,348 | ​ |  | 58,303
Intercompany eliminations | ​ |  | (50,187) | ​ |  | (48,479) | ​ |  | (42,015)
Total | ​ | $ | 873,100 | ​ | $ | 674,728 | ​ | $ | 733,555
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Income (loss) from operations — | ​ |  |  | ​ |  |  | ​ |  |
Well Intervention | ​ | $ | (53,056) | ​ | $ | (35,882) | ​ | $ | 26,855
Robotics | ​ |  | 29,981 | ​ |  | 5,762 | ​ |  | 13,755
Shallow Water Abandonment | ​ | ​ | 22,184 | ​ | ​ | — | ​ | ​ | —
Production Facilities | ​ |  | 27,201 | ​ |  | 22,906 | ​ |  | 15,975
Segment operating income (loss) | ​ |  | 26,310 | ​ |  | (7,214) | ​ |  | 56,585
Goodwill impairment (1) | ​ |  | — | ​ |  | — | ​ |  | (6,689)
Change in fair value of contingent consideration | ​ | ​ | (16,054) | ​ | ​ | — | ​ | ​ | —
Corporate, eliminations and other | ​ |  | (55,111) | ​ |  | (41,473) | ​ |  | (36,871)
Total | ​ | $ | (44,855) | ​ | $ | (48,687) | ​ | $ | 13,025
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 — | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Well Intervention | ​ | $ | 17,617 | ​ | $ | 2,349 | ​ | $ | 19,523
Robotics | ​ |  | 15,603 | ​ |  | 120 | ​ |  | 257
Shallow Water Abandonment | ​ | ​ | 532 | ​ | ​ | — | ​ | ​ | —
Production Facilities | ​ |  | (1,424) | ​ |  | 6,770 | ​ |  | —
Corporate, eliminations and other | ​ |  | 1,176 | ​ |  | (917) | ​ |  | 464
Total | ​ | $ | 33,504 | ​ | $ | 8,322 | ​ | $ | 20,244
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Depreciation and amortization — | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Well Intervention | ​ | $ | 103,952 | ​ | $ | 107,551 | ​ | $ | 101,756
Robotics | ​ |  | 12,209 | ​ |  | 15,158 | ​ |  | 15,952
Shallow Water Abandonment | ​ | ​ | 8,172 | ​ | ​ | — | ​ | ​ | —
Production Facilities | ​ |  | 18,520 | ​ |  | 19,465 | ​ |  | 15,652
Corporate and eliminations | ​ |  | (167) | ​ |  | (660) | ​ |  | 349
Total | ​ | $ | 142,686 | ​ | $ | 141,514 | ​ | $ | 133,709
(1) | Relates to the impairment of the entire STL goodwill balance (Note 3).
Intercompany segment amounts are derived primarily from equipment and services provided to other business segments. Intercompany segment revenues are as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ | 2022 |  | 2021 |  | 2020
Well Intervention | ​ | $ | 16,545 | ​ | $ | 21,521 | ​ | $ | 15,039
Robotics | ​ |  | 33,642 | ​ |  | 26,958 | ​ |  | 26,976
Total | ​ | $ | 50,187 | ​ | $ | 48,479 | ​ | $ | 42,015
​ Revenues by individually significant geographic location are as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31,
​ |  | 2022 |  | 2021 |  | 2020
U.S. | ​ | $ | 447,205 | ​ | $ | 232,661 | ​ | $ | 304,563
U.K. | ​ |  | 166,980 | ​ |  | 100,154 | ​ |  | 133,005
Brazil | ​ |  | 81,940 | ​ |  | 154,326 | ​ |  | 208,565
West Africa | ​ | ​ | 87,488 | ​ | ​ | 126,856 | ​ | ​ | 41,840
Other | ​ |  | 89,487 | ​ |  | 60,731 | ​ |  | 45,582
Total | ​ | $ | 873,100 | ​ | $ | 674,728 | ​ | $ | 733,555
​ Our operational assets work in various regions around the world such as the Gulf of Mexico, Brazil, the North Sea, Asia Pacific and West Africa. The following table provides our property and equipment, net of accumulated depreciation, by individually significant geographic location where those assets are based (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31,
​ | ​ | 2022 |  | 2021
U.S. | ​ | $ | 780,803 | ​ | $ | 693,062
U.K. (1) | ​ |  | 625,001 | ​ |  | 713,385
Brazil (2) | ​ |  | 235,811 | ​ |  | 251,194
Other | ​ |  | — | ​ |  | 4
Total | ​ | $ | 1,641,615 | ​ | $ | 1,657,645
(1) | Includes the Q7000 and certain other assets that are based in the U.K. but have operated in West Africa and may also operate in the North Sea, Asia Pacific and other regions.
(2) | Includes the equipment on the Siem Helix 1 chartered vessel and certain other assets that are based in Brazil but are have operated in West Africa and may also operate in the North Sea, Asia Pacific and other regions.
Segment assets are comprised of all assets attributable to each reportable segment. Corporate and other includes all assets not directly identifiable with our business segments, most notably the majority of our cash and cash equivalents. The following table reflects total assets by reportable segment (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2022 |  | 2021
Well Intervention | ​ | $ | 1,796,269 | ​ | $ | 2,012,214
Robotics | ​ |  | 192,694 | ​ |  | 96,249
Shallow Water Abandonment | ​ | ​ | 206,944 | ​ | ​ | —
Production Facilities | ​ |  | 136,382 | ​ |  | 119,004
Corporate and other | ​ |  | 57,049 | ​ |  | 98,561
Total | ​ | $ | 2,389,338 | ​ | $ | 2,326,028
​

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8981-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 15 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8657-108599 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8721-108599 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI https://asc.fasb.org/topic&trid=2134510 + Details
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