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Revenue From Contracts With Customers (Tables)
 6 Months Ended
Jun. 30, 2019
Revenue from Contract with Customer [Abstract]  
Schedule of disaggregation of revenue The following table provides information about disaggregated revenue by contract duration (in thousands):
 
 
Well Intervention
 
Robotics
 
Production Facilities
 
Intercompany Eliminations (1)
 
Total Revenue
Three months ended June 30, 2019
 
 
 
 
 
 
 
 
 
 
Short-term
$
62,788

 
$
28,701

 
$
—

 
$
—

 
$
91,489

Long-term (2)
96,286

 
16,745

 
15,621

 
(18,413
)
 
110,239

Total
$
159,074

 
$
45,446

 
$
15,621

 
$
(18,413
)
 
$
201,728

 
 
 
 
 
 
 
 
 
 
 
Three months ended June 30, 2018
 
 
 
 
 
 
 
 
 
 
Short-term
$
61,935

 
$
30,738

 
$
—

 
$
—

 
$
92,673

Long-term (2)
99,824

 
8,322

 
16,343

 
(12,537
)
 
111,952

Total
$
161,759

 
$
39,060

 
$
16,343

 
$
(12,537
)
 
$
204,625

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Six months ended June 30, 2019
 
 
 
 
 
 
 
 
 
 
Short-term
$
92,593

 
$
53,631

 
$
—

 
$
—

 
$
146,224

Long-term (2)
188,712

 
30,856

 
30,874

 
(28,115
)
 
222,327

Total
$
281,305

 
$
84,487

 
$
30,874

 
$
(28,115
)
 
$
368,551

 
 
 
 
 
 
 
 
 
 
 
Six months ended June 30, 2018
 
 
 
 
 
 
 
 
 
 
Short-term
$
103,962

 
$
51,062

 
$
—

 
$
—

 
$
155,024

Long-term (2)
187,366

 
15,167

 
32,664

 
(21,334
)
 
213,863

Total
$
291,328

 
$
66,229

 
$
32,664

 
$
(21,334
)
 
$
368,887

(1)
Intercompany revenues among our business segments are under agreements that are considered long-term.
(2)
Contracts are classified as long-term if all or part of the contract is to be performed over a period extending beyond 12 months from the effective date of the contract. Long-term contracts may include multi-year agreements whereby the commitment for services in any one year may be short in duration.