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Note 18 - Borrowings - Maturity of Borrowings (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Statement Line Items [Line Items] |  |  |
Total borrowings |  | $ 539,007 | $ 965,859
Interest to be accrued (*) | [1] | 10,692 | 18,290
Total |  | 549,699 | 984,149
Not later than one year [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 509,820 | 931,214
Interest to be accrued (*) | [1] | 8,182 | 14,512
Total |  | 518,002 | 945,726
Later than one year and not later than two years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 4,271 | 4,935
Interest to be accrued (*) | [1] | 1,175 | 1,212
Total |  | 5,446 | 6,147
Later than two years and not later than three years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 4,771 | 4,484
Interest to be accrued (*) | [1] | 1,166 | 1,203
Total |  | 5,937 | 5,687
Later than three years and not later than four years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 20,145 | 4,978
Interest to be accrued (*) | [1] | 169 | 1,190
Total |  | 20,314 | 6,168
Later than four years and not later than five years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  |  | 20,248
Interest to be accrued (*) | [1] |  | 174
Total |  |  | 20,422
Later than five years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  |  |
Interest to be accrued (*) | [1] |  |
Total |  |  |
Finance lease liabilities [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 44 | 197
Finance lease liabilities [member] | Not later than one year [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 44 | 138
Finance lease liabilities [member] | Later than one year and not later than two years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  |  | 59
Finance lease liabilities [member] | Later than two years and not later than three years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  |  |
Finance lease liabilities [member] | Later than three years and not later than four years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  |  |
Finance lease liabilities [member] | Later than four years and not later than five years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  |  |
Finance lease liabilities [member] | Later than five years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  |  |
Other borrowings [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 538,963 | 965,662
Other borrowings [member] | Not later than one year [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 509,776 | 931,076
Other borrowings [member] | Later than one year and not later than two years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 4,271 | 4,876
Other borrowings [member] | Later than two years and not later than three years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 4,771 | 4,484
Other borrowings [member] | Later than three years and not later than four years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  | 20,145 | 4,978
Other borrowings [member] | Later than four years and not later than five years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  |  | 20,248
Other borrowings [member] | Later than five years [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total borrowings |  |  |
[1] | Includes the effect of hedge accounting.

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