XML 157 R135.htm IDEA: XBRL DOCUMENT v3.21.1
Cash and cash equivalents - Summary (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
 [1]
Dec. 31, 2017
 [1]
Cash and cash equivalents [abstract]        
Cash at bank and on hand $ 178,079 $ 124,701    
Short-term bank deposits 158,203 165,575    
Cash and cash equivalents $ 336,282 $ 290,276 [1],[2] $ 273,635 $ 269,195
[1] Prior periods have been recast to reflect the Company's change in accounting policy for the reclassification within financial results as explained in Note 34.1
[2] Prior periods have been recast to reflect the Company's change in accounting policy for the reclassification within shareholders equity of the initial application of IAS 29 as explained in Note 34.1.