Investment properties - Additional information (Detail) - TRY (₺) ₺ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Investment properties
Depreciation expenses	₺ 22,583	₺ 23,836
Investment properties, fair value	535,520	533,909
Rental income	12,075	7,990
Direct operating expense from investment property	₺ 0	₺ 0

The amount of fair value of investment property when an entity applies the cost model to measure the investment property.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 40
-IssueDate 2025-01-01
-Paragraph 79
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2025-en-r&anchor=para_79_e&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 271
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_271_e&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 271
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_271_e&doctype=Standard
-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant