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Loans and Borrowings - Summary of Borrowings (Detail) - TRY (₺) ₺ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Non-current liabilities |  |
Unsecured bank loans | ₺ 6,376,981 | ₺ 5,300,756
Debt securities issued | 1,770,482 | 1,589,227
Finance lease liabilities | 108,164 | 41,539
Secured bank loans | 2,368 | 3,580
Total non-current liabilities | 8,257,995 | 6,935,102
Current liabilities |  |
Unsecured bank loans | 2,643,112 | 1,581,135
Current portion of unsecured bank loans | 1,513,425 | 922,867
Current portion of secured bank loans | 2,022 | 2,054
Current portion of finance lease liabilities | 14,556 | 6,575
Current portion of long-term debt securities issued | 105,039 | 94,473
Debt securities issued |  | 238,956
Total current liabilities | ₺ 4,278,154 | ₺ 2,846,060

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- Definition The amount of current notes and debentures issued and the current portion of non-current notes and debentures issued. [Refer: Notes and debentures issued] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
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