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Subsidiaries - Schedule of Non-Wholly Owned Subsidiaries That Have Material Non-Controlling Interests (Detail) - TRY (₺) ₺ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of subsidiaries [line items]
Profit/(loss) allocated to non-controlling interests	₺ 156,270	₺ 58,630	₺ 51,715
Accumulated non-controlling interests	₺ 131,810	₺ 55,927
Inteltek [member]
Disclosure of subsidiaries [line items]
Place of incorporation and principal place of business	Turkey
Proportion of ownership interests and voting rights held by non-controlling interest	45.00%	45.00%
Profit/(loss) allocated to non-controlling interests	₺ 105,112	₺ 35,924
Accumulated non-controlling interests	131,506	46,072
Subsidiaries with immaterial non-controlling interests [member]
Disclosure of subsidiaries [line items]
Profit/(loss) allocated to non-controlling interests	51,158	22,706
Accumulated non-controlling interests	₺ 304	₺ 9,855

X

- Definition

The country in which a subsidiary of the entity is incorporated. [Refer: Subsidiaries [member]]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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- Definition

The amount of equity in a subsidiary not attributable, directly or indirectly, to a parent. [Refer: Subsidiaries [member]]

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The profit (loss) from continuing and discontinued operations attributable to non-controlling interests. [Refer: Profit (loss); Non-controlling interests]

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