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Disclosures on equity (Details 3) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | $ 7,432 | $ (14,223) | $ (14,999)
Movement of reserves | (38,084) | 7,380 | 776
Reclassification adjustments | (3,739) | 14,275 |
Reclassification To Retained Earnings | (9,764) |  |
Closing balance | (44,155) | 7,432 | (14,223)
Reserve of change in value of foreign currency basis spreads [member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | (11,569) | (25,745) | (26,307)
Movement of reserves | 4,046 | (404) | 562
Reclassification adjustments | (390) | 14,580 |
Closing balance | (7,913) | (11,569) | (25,745)
Gains from cash flow hedge before tax [Member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | 6,173 | 9,879 | 7,971
Movement of reserves | (52,762) | (3,706) | 1,908
Closing balance | (46,589) | 6,173 | 9,879
Gains from cash flow hedge tax [Member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | (1,682) | (2,683) | 0
Movement of reserves | 14,246 | 1,001 | (2,683)
Closing balance | 12,564 | (1,682) | (2,683)
Losses from measurement of defined benefit plans before tax [Member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | (10,527) | (11,482) | (8,176)
Movement of reserves | 4,648 | 955 | (3,306)
Closing balance | (5,879) | (10,527) | (11,482)
Losses from measurement of defined benefit plans tax [Member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | 1,847 | 1,992 | 1,292
Movement of reserves | (142) | (145) | 700
Closing balance | 1,705 | 1,847 | 1,992
Gains (losses) from financial assets measured at fair value through other comprehensive income before tax [Member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | 10,176 | 392 | (760)
Movement of reserves | (12,072) | 9,784 | 1,152
Reclassification To Retained Earnings | (13,375) |  |
Closing balance | (15,271) | 10,176 | 392
Gains (losses) from financial assets measured at fair value through other comprehensive income tax [Member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | (3,304) | (662) | (351)
Movement of reserves | 3,818 | (2,642) | (311)
Reclassification To Retained Earnings | 3,611 |  |
Closing balance | 4,125 | (3,304) | (662)
Miscellaneous other reserves before tax [Member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | 16,318 | 14,086 | 11,332
Movement of reserves | 134 | 2,537 | 2,754
Reclassification adjustments | (3,349) | (305) |
Closing balance | 13,103 | 16,318 | 14,086
Total reserves, reserves before tax [Member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | 10,571 | (12,870) | (15,940)
Movement of reserves | (56,006) | 9,166 | 3,070
Reclassification adjustments | (3,739) | 14,275 |
Reclassification To Retained Earnings | (13,375) |  |
Closing balance | (62,549) | 10,571 | (12,870)
Total reserves, reserves defered tax [Member] |  |  |
Disclosure of Disclosures on equity [Line Items] |  |  |
Opening balance | (3,139) | (1,353) | 941
Movement of reserves | 17,922 | (1,786) | (2,294)
Reclassification To Retained Earnings | 3,611 |  |
Closing balance | $ 18,394 | $ (3,139) | $ (1,353)

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