Segment Information - Summary of Non-Current Assets by Geographical Regions (Details) - KRW (₩) ₩ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of geographical areas [line items]
Non-current assets	₩ 16,653	₩ 13,093	₩ 9,902
Domestic
Disclosure of geographical areas [line items]
Non-current assets	10,884	7,612	5,732
Overseas
Disclosure of geographical areas [line items]
Non-current assets	₩ 5,769	₩ 5,481	₩ 4,170

The amount of non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets and rights arising under insurance contracts. [Refer: Deferred tax assets; Financial instruments, class [member]; Non-current assets; Types of insurance contracts [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2021-01-01
-Paragraph 33
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_33_b&doctype=Standard
-URIDate 2021-03-24

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