Income Tax Expense - Additional Information (Details) - KRW (₩) ₩ in Millions	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Abstract]
Temporary difference related to investments in subsidiaries not recognized as deferred tax assets	₩ 14,877	₩ 18,489
Temporary differences not recognized as deferred income tax assets	₩ 631	₩ 751

The amount of deductible temporary differences for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_e&doctype=Standard
-URIDate 2021-03-24

Name:	ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant