Inventories - Additional information (Details) - KRW (₩) ₩ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Inventories [Line Items]
Reversal of write down of inventory	₩ 18,162	₩ 11,422	₩ 2,020
Write down of inventory	14,528	7,761	4,998
Other Gains Losses [Member]
Inventories [Line Items]
Write down of inventory	₩ 14,528	₩ 7,761	₩ 4,998

The amount recognised as a reduction in the amount of inventories recognised as an expense due to the reversal of any write-down of inventories resulting from an increase in net realisable value. [Refer: Inventories; Inventory write-down]

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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