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Goodwill and Intangible Assets, Net (Tables)
 3 Months Ended
Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Changes in Carrying Amount of Goodwill
The changes in the carrying amount of goodwill for the three months ended March 31, 2018 are as follows:
Balance at December 31, 2017
$
153,289

Foreign currency translation adjustments
1,459

Balance at March 31, 2018
$
154,748
Schedule of Intangible Assets
Intangible assets consist of the following as of March 31, 2018:
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net
Patents, developed technologies and know-how
$
266,579

 
$
(48,586
)
 
$
217,993

Customer relationships
10,700

 
(6,733
)
 
3,967

Trademarks
6,800

 
(2,760
)
 
4,040

In-process research and development
5,883

 
—

 
5,883

Total
$
289,962

 
$
(58,079
)
 
$
231,883


Intangible assets consist of the following as of December 31, 2017:
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net
Patents, developed technologies and know-how
$
263,615

 
$
(44,954
)
 
$
218,661

Customer relationships
10,700

 
(6,383
)
 
4,317

Trademarks
6,800

 
(2,567
)
 
4,233

In-process research and development
5,666

 
—

 
5,666

Total
$
286,781

 
$
(53,904
)
 
$
232,877