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Cash and Cash Equivalents and Restricted Cash (Tables)
6 Months Ended
Jun. 30, 2016
Cash and Cash Equivalents [Abstract]  
Schedule of Cash and Cash Equivalents
Cash and cash equivalents were held in the following geographic regions:
(In thousands)
June 30, 2016
 
December 31, 2015
United States
$
6,553

 
$
8,458

People's Republic of China ("PRC")
22,366

 
28,681

Asia (excluding the PRC)
4,455

 
5,346

Europe
11,729

 
8,093

South America
4,342

 
2,388

Total cash and cash equivalents
$
49,445

 
$
52,966