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Goodwill and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
Changes in the carrying amount of goodwill for the years ended December 31, 2018 and 2017 are as follows (in thousands):
 
Well Site Services
 
Downhole Technologies
 
Offshore / Manufactured
Products
 
Total
 
Completion
Services
 
Drilling
Services
 
Subtotal
 
 
 
Balance as of December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
Goodwill
$
199,278

 
$
22,767

 
$
222,045

 
$

 
$
158,619

 
$
380,664

Accumulated impairment losses
(94,528
)
 
(22,767
)
 
(117,295
)
 

 

 
(117,295
)
 
104,750

 

 
104,750

 

 
158,619

 
263,369

Goodwill acquired

 

 

 

 
3,724

 
3,724

Foreign currency translation
353

 

 
353

 

 
563

 
916

Balance as of December 31, 2017
$
105,103

 
$

 
$
105,103

 
$

 
$
162,906

 
$
268,009

 
 
 
 
 
 
 
 
 
 
 
 
Balance as of December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
Goodwill
$
199,631

 
$
22,767

 
$
222,398

 
$

 
$
162,906

 
$
385,304

Accumulated impairment losses
(94,528
)
 
(22,767
)
 
(117,295
)
 

 

 
(117,295
)
 
105,103

 

 
105,103

 

 
162,906

 
268,009

Goodwill acquired
21,953

 

 
21,953

 
357,502

 

 
379,455

Foreign currency translation
(2
)
 

 
(2
)
 

 
(444
)
 
(446
)
Balance as of December 31, 2018
$
127,054

 
$

 
$
127,054

 
$
357,502

 
$
162,462

 
$
647,018

 
 
 
 
 
 
 
 
 
 
 
 
Balance as of December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
Goodwill
$
221,582

 
$
22,767

 
$
244,349

 
$
357,502

 
$
162,462

 
$
764,313

Accumulated impairment losses
(94,528
)
 
(22,767
)
 
(117,295
)
 

 

 
(117,295
)
 
$
127,054

 
$

 
$
127,054

 
$
357,502

 
$
162,462

 
$
647,018

Schedule of Finite-Lived Intangible Assets
The following table presents the total gross carrying amount of intangibles and the total accumulated amortization for major intangible asset classes as of December 31, 2018 and 2017 (in thousands):
 
As of December 31,
 
2018
 
2017
Other Intangible Assets
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Gross
Carrying
Amount
 
Accumulated
Amortization
Customer relationships
$
167,811

 
$
33,247

 
$
44,557

 
$
22,661

Patents/Technology/Know-how
84,903

 
23,418

 
35,762

 
15,844

Noncompete agreements
18,705

 
7,544

 
4,899

 
2,799

Tradenames and other
53,708

 
5,617

 
10,801

 
4,450

Total other intangible assets
$
325,127

 
$
69,826

 
$
96,019

 
$
45,754