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Business Segment Information (Tables)
12 Months Ended
Dec. 31, 2021
Segment Reporting [Abstract]  
Schedule of financial data by reportable segment Certain financial data by reportable segment are summarized as follows (in thousands):

Year Ended December 31, 

2021

    

2020

    

2019

Net revenues —

  

  

 

  

Well Intervention

$

516,564

$

539,249

$

593,300

Robotics

 

137,295

 

178,018

 

171,672

Production Facilities

 

69,348

 

58,303

 

61,210

Intercompany eliminations

 

(48,479)

 

(42,015)

 

(74,273)

Total

$

674,728

$

733,555

$

751,909

Income (loss) from operations —

 

  

 

  

 

  

Well Intervention

$

(35,882)

$

26,855

$

89,564

Robotics

 

5,762

 

13,755

 

7,261

Production Facilities

 

22,906

 

15,975

 

17,160

Segment operating income (loss)

 

(7,214)

 

56,585

 

113,985

Goodwill impairment (1)

 

 

(6,689)

 

Corporate, eliminations and other

 

(41,473)

 

(36,871)

 

(45,988)

Total

$

(48,687)

$

13,025

$

67,997

Net interest expense

(23,201)

(28,531)

(8,333)

Other non-operating income (expense), net

1,246

16,889

5,892

Income (loss) before income taxes

$

(70,642)

$

1,383

$

65,556

Capital expenditures —

Well Intervention

$

2,349

$

19,523

$

139,212

Robotics

 

120

 

257

 

417

Production Facilities

 

6,770

 

 

123

Corporate, eliminations and other

 

(917)

 

464

 

1,102

Total

$

8,322

$

20,244

$

140,854

Depreciation and amortization —

Well Intervention

$

107,551

$

101,756

$

80,153

Robotics

 

15,158

 

15,952

 

16,459

Production Facilities

 

19,465

 

15,652

 

15,658

Corporate and eliminations

 

(660)

 

349

 

450

Total

$

141,514

$

133,709

$

112,720

(1)Relates to the impairment of the entire STL goodwill balance (Note 7).
Schedule of intercompany segment revenues

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, 

2021

    

2020

    

2019

Well Intervention (1)

$

21,521

$

15,039

$

43,484

Robotics

 

26,958

 

26,976

 

30,789

Total

$

48,479

$

42,015

$

74,273

(1)Amount for the year ended December 31, 2019 included $27.5 million associated with the P&A work on our oil and gas properties in our Production Facilities segment (Note 16).
Schedule of revenue by individually significant geographic location

Revenues by individually significant geographic location are as follows (in thousands):

    

Year Ended December 31,

    

2021

    

2020

    

2019

U.S.

$

232,661

$

304,563

$

297,162

U.K.

 

100,154

 

133,005

 

193,903

Brazil

 

154,326

 

208,565

 

216,796

West Africa

126,856

41,840

646

Other

 

60,731

 

45,582

 

43,402

Total

$

674,728

$

733,555

$

751,909

Schedule of property and equipment, net of accumulated depreciation, by individually significant geographic location 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,

2021

    

2020

U.S.

$

693,062

$

750,986

U.K. (1)

 

713,385

 

764,070

Brazil (2)

 

251,194

 

267,896

Singapore

 

4

 

12

Total

$

1,657,645

$

1,782,964

(1)Includes the Q7000 and certain other assets that are based in the U.K. but are currently operating 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 currently operating in West Africa and may also operate in the North Sea, Asia Pacific and other regions.
Schedule of total assets by reportable segment The following table reflects total assets by reportable segment (in thousands):

December 31, 

December 31,

    

2021

    

2020

Well Intervention

$

2,012,214

$

2,134,081

Robotics

 

96,249

 

132,550

Production Facilities

 

119,004

 

129,773

Corporate and other

 

98,561

 

101,874

Total

$

2,326,028

$

2,498,278