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Commitments and Contingencies - Summary of Guarantees Received from Financial Institutions (Detail) - Dec. 31, 2022 $ in Thousands, ₩ in Millions | KRW (₩) | USD ($)
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Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | ₩ 2,319,939 | $ 109,645
Guarantee for payment in korean currency [member] | Hana Bank [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | 4,000 |
Guarantee for payment in korean currency [member] | Woori Bank [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | 5,200 |
Comprehensive Credit Line and Others [Member] | Hana Bank [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | 3,100 | 10,300
Guarantee for payment in foreign currency [member] | Hana Bank [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | $ |  | 273
Guarantee for payment in foreign currency [member] | Kookmin Bank [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | $ |  | 6,484
Guarantee for payment in foreign currency [member] | Woori Bank [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | $ |  | 7,000
Guarantee For Payment In Korean Currency And Others [Member] | Shinhan Bank [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | 36,298 |
Guarantee For Payment In Foreign Currency And Others [Member] | Shinhan Bank [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | $ |  | 77,837
Refund guarantee for advances received [Member] | Korea Development Bank [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | $ |  | 6,880
Guarantees for depositions [Member] | H S B C [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | $ |  | $ 871
Performance Guarantee And Others [Member] | Seoul Guarantee Insurance Company [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | 783,247 |
Performance Guarantee And Others [Member] | Korea Software Financial Cooperative [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | 1,445,072 |
Performance Guarantee And Others [Member] | Korea Specialty Contractor Financial Cooperative [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | 531 |
Performance Guarantee And Others [Member] | Korea Housing Finance Corporation [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | 14,464 |
Performance Guarantee And Others [Member] | Information & Communication Financial Cooperative [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Guarantees limit | ₩ 28,027 |

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