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Financial risk management (Schedule of Contractual Maturities of Financial Liabilities) (Details) $ in Thousands | Dec. 31, 2017 USD ($)
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Disclosure of maturity analysis for non-derivative financial liabilities [line items] |
Trade and other payables | $ 10,393
Per-payment facilities | 15,000
Interest on credit facilities | 1,601
Leases | 1,438
Other long-term liabilities | 564
Total contractual maturities of financial liabilities on an undiscounted basis | 28,996
Less than 1 year [Member] |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |
Trade and other payables | 10,393
Per-payment facilities | 4,000
Interest on credit facilities | 856
Leases | 290
Other long-term liabilities |
Total contractual maturities of financial liabilities on an undiscounted basis | 15,539
2 - 3 Years [Member] |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |
Trade and other payables |
Per-payment facilities | 11,000
Interest on credit facilities | 745
Leases | 563
Other long-term liabilities | 95
Total contractual maturities of financial liabilities on an undiscounted basis | 12,403
4 - 5 Years [Member] |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |
Trade and other payables |
Per-payment facilities |
Interest on credit facilities |
Leases | 540
Other long-term liabilities |
Total contractual maturities of financial liabilities on an undiscounted basis | 540
Over 5 Years [Member] |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |
Trade and other payables |
Per-payment facilities |
Interest on credit facilities |
Leases | 45
Other long-term liabilities | 469
Total contractual maturities of financial liabilities on an undiscounted basis | $ 514

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- Definition The amount of contractual undiscounted cash flows in relation to lease liabilities before deducting finance charges. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2019-01-01 -Name IFRS -Number 16 -IssueDate 2017-01-01 -Paragraph 58 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2017-03-01&anchor=para_58&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Note Effective 2019-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph B11D -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_B11D_a&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
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