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Earnings Per Share - Basic And Diluted Earnings Per Share (Detail) - KRW (₩) | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Earnings per share [abstract] |  |  |
Profit attribute to controlling interest | ₩ 690,685,596,779 | ₩ 1,125,379,754,922 | ₩ 1,698,202,436,726
Weighted-average number of common shares outstanding | 75,620,779 | 75,767,552 | 75,869,542
Basic earnings per share | ₩ 9,134 | ₩ 14,853 | ₩ 22,383
Total number of common shares issued | 81,350,016 | 83,761,569 | 84,571,230
Weighted-average number of treasury shares | (5,729,237) | (7,994,017) | (8,701,688)

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- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2025-01-01 -Paragraph 66 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2025-en-r&anchor=para_66&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2025-01-01 -Paragraph 67 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2025-en-r&anchor=para_67&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2025-01-01 -Paragraph 70 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2025-en-r&anchor=para_70_b&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition Profit attribute to controlling interest. + References No definition available. + Details
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- Definition Total number of common shares issued. + References No definition available. + Details
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