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Financial Risk Management - Summary of Group's Recognized Financial Assets Subject to Enforceable Master Netting Arrangements or Similar Agreements (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of offsetting of financial assets [line items] |  |
Gross assets | ₩ 71,828 | ₩ 79,174
Gross liabilities offset | (20,735) | (2,164)
Net amounts presented in the statement of financial position | 51,093 | 77,010
Amounts not offset, Financial instruments | (42,999) | (59,150)
Net amount | 8,094 | 17,860
Trade receivables [member] |  |
Disclosure of offsetting of financial assets [line items] |  |
Gross assets | 71,680 | 78,415
Gross liabilities offset | (20,588) | (1,407)
Net amounts presented in the statement of financial position | 51,092 | 77,008
Amounts not offset, Financial instruments | (42,998) | (59,148)
Net amount | 8,094 | 17,860
Other financial assets [Member] |  |
Disclosure of offsetting of financial assets [line items] |  |
Gross assets | 148 | 759
Gross liabilities offset | (147) | (757)
Net amounts presented in the statement of financial position | 1 | 2
Amounts not offset, Financial instruments | ₩ (1) | ₩ (2)

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