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Related Party Transactions - Summary of Related Parties Outstanding Balances of Receivables and Payables (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Trade receivables [member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | ₩ 7,824 | ₩ 4,572
Trade receivables [member] | K Bank Inc.[Member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 862 | 682
Trade receivables [member] | Little Big Pictures [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 232 | 1,454
Trade receivables [member] | K-Realty 11th Real Estate Investment Trust Company [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 110 | 151
Trade receivables [member] | KRealty No.3 Real Estate General Private Placement Investment Company [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 4,576 |
Trade receivables [member] | Others [member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 2,044 | 2,285
Other Receivables [member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 330,924 | 267,929
Other Receivables [member] | K Bank Inc.[Member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 326,006 | 258,999
Other Receivables [member] | Little Big Pictures [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 3,473 | 7,645
Other Receivables [member] | K-Realty 11th Real Estate Investment Trust Company [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 1,283 | 1,283
Other Receivables [member] | Others [member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 162 | 2
Lease receivables [member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 769 |
Lease receivables [member] | K Bank Inc.[Member] |  |
Disclosure of transactions between related parties [line items] |  |
Receviables | 769 |
Trade payables [member] |  |
Disclosure of transactions between related parties [line items] |  |
Payables | 2,909 | 3,235
Trade payables [member] | Little Big Pictures [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Payables | 9 |
Trade payables [member] | Others [member] |  |
Disclosure of transactions between related parties [line items] |  |
Payables | 2,900 | 3,235
Other payables [member] |  |
Disclosure of transactions between related parties [line items] |  |
Payables | 3,334 | 3,240
Other payables [member] | K Bank Inc.[Member] |  |
Disclosure of transactions between related parties [line items] |  |
Payables | 299 | 299
Other payables [member] | Little Big Pictures [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Payables | 6 | 9
Other payables [member] | Others [member] |  |
Disclosure of transactions between related parties [line items] |  |
Payables | 3,029 | 2,932
Lease liabilities [member] |  |
Disclosure of transactions between related parties [line items] |  |
Payables | 6,732 | ₩ 8,824
Lease liabilities [member] | K-Realty 11th Real Estate Investment Trust Company [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Payables | ₩ 6,732 |

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