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Cash and Cash Equivalents
12 Months Ended
Dec. 31, 2018
Cash and cash equivalents [abstract]  
Disclosure of cash and cash equivalents [text block]
Note 6.
Cash and Cash Equivalents
 
  
January 1,

2017
  
December 31,

2017
  
December 31,

2018
 
  
(in thousands)
 
          
Cash, demand deposits and checking accounts $171,397   115,464   98,400 
Time deposits with less than three months maturity date  13,055   22,559   8,037 
  
$
184,452
   
138,023
   
106,437
 
 
Refer to Note 22 and Note 23 for the disclosure of credit risk, currency risk and sensitivity analysis of the financial assets and liabilities of the Company.
 
As of January 1, 2017, December 31, 2017 and 2018, no cash and cash equivalents were pledged with banks as collaterals.