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Commitments
 12 Months Ended
Dec. 31, 2017
Text block1 [abstract]  
Commitments
22. Commitments

The Company’s contractual obligations, not recorded on the balance sheet, at December 31, 2017, include:

 

    

2018

$

     

2019

$

     

2020

$

     

2021 and later

$

  

Leases

      14,953        11,676        10,688        60,958    

Purchase obligations

      47,614        722        100        152    

Totals

              62,567                12,398                10,788                61,110    

Purchase obligations in 2018 relate primarily to mine development expenditures in Greece as well as operating costs in Turkey.