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Assets Held for Sale (Tables)
 12 Months Ended
Dec. 31, 2017
Text Block [Abstract]  
Schedule of Assets Held for Sale

Assets held for sale are comprised of the following:

At December 31,

 

2016

 

 

2017

 

At net book value:

 

 

 

 

 

 

 

 

Land

 

$

341

 

 

$

—

 

Buildings

 

 

16,496

 

 

 

—

 

Machinery and equipment

 

 

23

 

 

 

—

 

Leasehold improvements

 

 

2,097

 

 

 

—

 

Others

 

 

13

 

 

 

—

 

Total

 

$

18,970

 

 

$

—