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Cash and Cash Equivalents (Tables)
12 Months Ended
Dec. 31, 2017
Cash And Cash Equivalents [Abstract]  
Summary of Cash and Cash Equivalents

 

 

As of December 31,

 

 

 

2017

 

 

2016

 

 

 

US$’000

 

 

US$’000

 

Cash on hand and cash at banks

 

 

46,093

 

 

 

48,231