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Employee Benefits - Summary of Movement in Reserve for Employee Termination Benefits (Detail) - TRY (₺) ₺ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [abstract]
Employee termination benefits,beginning balance	₺ 160,613	₺ 149,449
Service cost	35,831	26,971
Remeasurements	36,385	(12,699)
Interest expense	25,566	16,957
Benefit payments	(36,231)	(20,065)
Employee termination benefits,ending balance	₺ 222,164	₺ 160,613

X

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References

No definition available.

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- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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X

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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X

- Definition

The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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X

- Definition

Employee termination benefits.

+ References

No definition available.

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