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Derivatives - Summary of Derivative Currency Swap Forward Contract List (Details) - 12 months ended Dec. 31, 2024 - Currency forward contracts
$ in Thousands, ₩ in Millions
KRW (₩)
USD ($)
Disclosure of Derivative Currency forward contract detail list [Line Items]    
Derivative Counterparty Woori Bank Woori Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Jan. 03, 2025 Jan. 03, 2025
Contract Amounts Pay | ₩ ₩ 8,836  
Contract Amounts Receive | $   $ 6,000
Contract exchange rate 1,472.6 1,472.6
Derivative Counterparty Woori Bank Woori Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Jan. 06, 2025 Jan. 06, 2025
Contract Amounts Pay | ₩ ₩ 7,363  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,472.5 1,472.5
Derivative Counterparty Morgan Stanley Morgan Stanley
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Jan. 10, 2025 Jan. 10, 2025
Contract Amounts Pay | ₩ ₩ 17,645  
Contract Amounts Receive | $   $ 12,000
Contract exchange rate 1,470.45 1,470.45
Derivative Counterparty Kookmin Bank Kookmin Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Jan. 14, 2025 Jan. 14, 2025
Contract Amounts Pay | ₩ ₩ 17,640  
Contract Amounts Receive | $   $ 12,000
Contract exchange rate 1,470 1,470
Derivative Counterparty Busan Bank Busan Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Jan. 16, 2025 Jan. 16, 2025
Contract Amounts Pay | ₩ ₩ 17,622  
Contract Amounts Receive | $   $ 12,000
Contract exchange rate 1,468.5 1,468.5
Derivative Counterparty Korea Development Bank Korea Development Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Jan. 17, 2025 Jan. 17, 2025
Contract Amounts Pay | ₩ ₩ 17,627  
Contract Amounts Receive | $   $ 12,000
Contract exchange rate 1,468.95 1,468.95
Derivative Counterparty Shinhan Bank Shinhan Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Jan. 21, 2025 Jan. 21, 2025
Contract Amounts Pay | ₩ ₩ 17,619  
Contract Amounts Receive | $   $ 12,000
Contract exchange rate 1,468.25 1,468.25
Derivative Counterparty SMBC SMBC
Contract date Nov. 06, 2024 Nov. 06, 2024
Maturity date Jan. 13, 2025 Jan. 13, 2025
Contract Amounts Pay | ₩ ₩ 22,201  
Contract Amounts Receive | $   $ 16,000
Contract exchange rate 1,387.54 1,387.54
Derivative Counterparty SMBC SMBC
Contract date Nov. 07, 2024 Nov. 07, 2024
Maturity date Jan. 13, 2025 Jan. 13, 2025
Contract Amounts Pay | ₩ ₩ 12,559  
Contract Amounts Receive | $   $ 9,000
Contract exchange rate 1,395.42 1,395.42
Derivative Counterparty SMBC SMBC
Contract date Nov. 07, 2024 Nov. 07, 2024
Maturity date Jan. 31, 2025 Jan. 31, 2025
Contract Amounts Pay | ₩ ₩ 12,551  
Contract Amounts Receive | $   $ 9,000
Contract exchange rate 1,394.59 1,394.59
Derivative Counterparty SMBC SMBC
Contract date Nov. 11, 2024 Nov. 11, 2024
Maturity date Jan. 07, 2025 Jan. 07, 2025
Contract Amounts Pay | ₩ ₩ 12,529  
Contract Amounts Receive | $   $ 9,000
Contract exchange rate 1,392.15 1,392.15
Derivative Counterparty SMBC SMBC
Contract date Nov. 29, 2024 Nov. 29, 2024
Maturity date Feb. 07, 2025 Feb. 07, 2025
Contract Amounts Pay | ₩ ₩ 13,917  
Contract Amounts Receive | $   $ 10,000
Contract exchange rate 1,391.72 1,391.72
Derivative Counterparty SMBC SMBC
Contract date Dec. 04, 2024 Dec. 04, 2024
Maturity date Jan. 31, 2025 Jan. 31, 2025
Contract Amounts Pay | ₩ ₩ 12,692  
Contract Amounts Receive | $   $ 9,000
Contract exchange rate 1,410.19 1,410.19
Derivative Counterparty MUFG MUFG
Contract date Dec. 10, 2024 Dec. 10, 2024
Maturity date Feb. 13, 2025 Feb. 13, 2025
Contract Amounts Pay | ₩ ₩ 11,395  
Contract Amounts Receive | $   $ 8,000
Contract exchange rate 1,424.38 1,424.38
Derivative Counterparty Mizuho Bank Mizuho Bank
Contract date Dec. 13, 2024 Dec. 13, 2024
Maturity date Jan. 07, 2025 Jan. 07, 2025
Contract Amounts Pay | ₩ ₩ 12,886  
Contract Amounts Receive | $   $ 9,000
Contract exchange rate 1,431.75 1,431.75
Derivative Counterparty Korea Development Bank Korea Development Bank
Contract date Dec. 16, 2024 Dec. 16, 2024
Maturity date Jan. 07, 2025 Jan. 07, 2025
Contract Amounts Pay | ₩ ₩ 27,247  
Contract Amounts Receive | $   $ 19,000
Contract exchange rate 1,434.04 1,434.04
Derivative Counterparty Hana Bank Hana Bank
Contract date Dec. 19, 2024 Dec. 19, 2024
Maturity date Jan. 23, 2025 Jan. 23, 2025
Contract Amounts Pay | ₩ ₩ 13,032  
Contract Amounts Receive | $   $ 9,000
Contract exchange rate 1,448 1,448
Derivative Counterparty SMBC SMBC
Contract date Dec. 24, 2024 Dec. 24, 2024
Maturity date Feb. 07, 2025 Feb. 07, 2025
Contract Amounts Pay | ₩ ₩ 36,283  
Contract Amounts Receive | $   $ 25,000
Contract exchange rate 1,451.33 1,451.33
Derivative Counterparty Shinhan Bank Shinhan Bank
Contract date Dec. 26, 2024 Dec. 26, 2024
Maturity date Jan. 07, 2025 Jan. 07, 2025
Contract Amounts Pay | ₩ ₩ 10,238  
Contract Amounts Receive | $   $ 7,000
Contract exchange rate 1,462.63 1,462.63
Derivative Counterparty MUFG MUFG
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Jan. 23, 2025 Jan. 23, 2025
Contract Amounts Pay | ₩ ₩ 11,755  
Contract Amounts Receive | $   $ 8,000
Contract exchange rate 1,469.36 1,469.36
Derivative Counterparty MUFG MUFG
Contract date Nov. 29, 2024 Nov. 29, 2024
Maturity date Jan. 02, 2025 Jan. 02, 2025
Contract Amounts Pay | ₩ ₩ 1,951  
Contract Amounts Receive | $   $ 1,400
Contract exchange rate 1,393.35 1,393.35
Derivative Counterparty MUFG MUFG
Contract date Nov. 29, 2024 Nov. 29, 2024
Maturity date Jan. 03, 2025 Jan. 03, 2025
Contract Amounts Pay | ₩ ₩ 3,622  
Contract Amounts Receive | $   $ 2,600
Contract exchange rate 1,393.15 1,393.15
Derivative Counterparty Kookmin Bank Kookmin Bank
Contract date Dec. 02, 2024 Dec. 02, 2024
Maturity date Jan. 06, 2025 Jan. 06, 2025
Contract Amounts Pay | ₩ ₩ 7,001  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,400.25 1,400.25
Derivative Counterparty Nonghyup Bank Nonghyup Bank
Contract date Dec. 03, 2024 Dec. 03, 2024
Maturity date Jan. 06, 2025 Jan. 06, 2025
Contract Amounts Pay | ₩ ₩ 7,010  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,401.9 1,401.9
Derivative Counterparty MUFG MUFG
Contract date Dec. 03, 2024 Dec. 03, 2024
Maturity date Jan. 06, 2025 Jan. 06, 2025
Contract Amounts Pay | ₩ ₩ 7,002  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,400.35 1,400.35
Derivative Counterparty JP Morgan JP Morgan
Contract date Dec. 18, 2024 Dec. 18, 2024
Maturity date Jan. 21, 2025 Jan. 21, 2025
Contract Amounts Pay | ₩ ₩ 7,171  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,434.15 1,434.15
Derivative Counterparty MUFG MUFG
Contract date Dec. 20, 2024 Dec. 20, 2024
Maturity date Jan. 24, 2025 Jan. 24, 2025
Contract Amounts Pay | ₩ ₩ 7,244  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,448.75 1,448.75
Derivative Counterparty Kookmin Bank Kookmin Bank
Contract date Dec. 20, 2024 Dec. 20, 2024
Maturity date Jan. 24, 2025 Jan. 24, 2025
Contract Amounts Pay | ₩ ₩ 7,243  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,448.6 1,448.6
Derivative Counterparty MUFG MUFG
Contract date Dec. 23, 2024 Dec. 23, 2024
Maturity date Jan. 27, 2025 Jan. 27, 2025
Contract Amounts Pay | ₩ ₩ 7,239  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,447.8 1,447.8
Derivative Counterparty Mizuho Bank Mizuho Bank
Contract date Dec. 23, 2024 Dec. 23, 2024
Maturity date Jan. 27, 2025 Jan. 27, 2025
Contract Amounts Pay | ₩ ₩ 7,239  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,447.8 1,447.8
Derivative Counterparty JP Morgan JP Morgan
Contract date Dec. 24, 2024 Dec. 24, 2024
Maturity date Jan. 27, 2025 Jan. 27, 2025
Contract Amounts Pay | ₩ ₩ 7,261  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,452.15 1,452.15
Derivative Counterparty Nonghyup Bank Nonghyup Bank
Contract date Dec. 24, 2024 Dec. 24, 2024
Maturity date Jan. 27, 2025 Jan. 27, 2025
Contract Amounts Pay | ₩ ₩ 7,261  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,452.2 1,452.2
Derivative Counterparty Woori Bank Woori Bank
Contract date Dec. 26, 2024 Dec. 26, 2024
Maturity date Jan. 31, 2025 Jan. 31, 2025
Contract Amounts Pay | ₩ ₩ 7,309  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,461.7 1,461.7
Derivative Counterparty Hana Bank Hana Bank
Contract date Dec. 26, 2024 Dec. 26, 2024
Maturity date Jan. 31, 2025 Jan. 31, 2025
Contract Amounts Pay | ₩ ₩ 7,308  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,461.55 1,461.55
Derivative Counterparty Nonghyup Bank Nonghyup Bank
Contract date Dec. 27, 2024 Dec. 27, 2024
Maturity date Jan. 31, 2025 Jan. 31, 2025
Contract Amounts Pay | ₩ ₩ 6,881  
Contract Amounts Receive | $   $ 4,670
Contract exchange rate 1,473.35 1,473.35
Derivative Counterparty Korea Citi Bank Korea Citi Bank
Contract date Dec. 16, 2024 Dec. 16, 2024
Maturity date Jan. 13, 2025 Jan. 13, 2025
Contract Amounts Pay | ₩ ₩ 2,865  
Contract Amounts Receive | $   $ 2,000
Contract exchange rate 1,432.65 1,432.65
Derivative Counterparty Korea Citi Bank Korea Citi Bank
Contract date Dec. 19, 2024 Dec. 19, 2024
Maturity date Jan. 13, 2025 Jan. 13, 2025
Contract Amounts Pay | ₩ ₩ 11,607  
Contract Amounts Receive | $   $ 8,000
Contract exchange rate 1,450.88 1,450.88
Derivative Counterparty Korea Citi Bank Korea Citi Bank
Contract date Dec. 26, 2024 Dec. 26, 2024
Maturity date Jan. 27, 2025 Jan. 27, 2025
Contract Amounts Pay | ₩ ₩ 5,911  
Contract Amounts Receive | $   $ 4,000
Contract exchange rate 1,477.76 1,477.76
Derivative Counterparty Korea Citi Bank Korea Citi Bank
Contract date Dec. 26, 2024 Dec. 26, 2024
Maturity date Jan. 27, 2025 Jan. 27, 2025
Contract Amounts Pay | ₩ ₩ 2,956  
Contract Amounts Receive | $   $ 2,000
Contract exchange rate 1,477.76 1,477.76
Derivative Counterparty Korea Citi Bank Korea Citi Bank
Contract date Dec. 26, 2024 Dec. 26, 2024
Maturity date Jan. 27, 2025 Jan. 27, 2025
Contract Amounts Pay | ₩ ₩ 2,927  
Contract Amounts Receive | $   $ 2,000
Contract exchange rate 1,463.66 1,463.66
Derivative Counterparty HSBC HSBC
Contract date Dec. 19, 2024 Dec. 19, 2024
Maturity date Jan. 23, 2025 Jan. 23, 2025
Contract Amounts Pay | ₩ ₩ 4,350  
Contract Amounts Receive | $   $ 3,000
Contract exchange rate 1,450.05 1,450.05
Derivative Counterparty HSBC HSBC
Contract date Dec. 19, 2024 Dec. 19, 2024
Maturity date Jan. 23, 2025 Jan. 23, 2025
Contract Amounts Pay | ₩ ₩ 4,348  
Contract Amounts Receive | $   $ 3,000
Contract exchange rate 1,449.35 1,449.35
Derivative Counterparty JP Morgan JP Morgan
Contract date Dec. 24, 2024 Dec. 24, 2024
Maturity date Jan. 24, 2025 Jan. 24, 2025
Contract Amounts Pay | ₩ ₩ 30,058  
Contract Amounts Receive | $   $ 20,700
Contract exchange rate 1,452.07 1,452.07
Derivative Counterparty SMBC SMBC
Contract date Dec. 16, 2024 Dec. 16, 2024
Maturity date Jan. 13, 2025 Jan. 13, 2025
Contract Amounts Pay | ₩ ₩ 5,733  
Contract Amounts Receive | $   $ 4,000
Contract exchange rate 1,433.2 1,433.2
Derivative Counterparty SMBC SMBC
Contract date Dec. 26, 2024 Dec. 26, 2024
Maturity date Jan. 27, 2025 Jan. 27, 2025
Contract Amounts Pay | ₩ ₩ 8,791  
Contract Amounts Receive | $   $ 6,000
Contract exchange rate 1,465.15 1,465.15
Derivative Counterparty SMBC SMBC
Contract date Dec. 26, 2024 Dec. 26, 2024
Maturity date Jan. 27, 2025 Jan. 27, 2025
Contract Amounts Pay | ₩ ₩ 2,955  
Contract Amounts Receive | $   $ 2,000
Contract exchange rate 1,477.65 1,477.65
Derivative Counterparty Nonghyup Bank Nonghyup Bank
Contract date Dec. 09, 2024 Dec. 09, 2024
Maturity date Jan. 10, 2025 Jan. 10, 2025
Contract Amounts Pay | ₩ ₩ 15  
Contract Amounts Receive | $   $ 10
Contract exchange rate 1,433.6 1,433.6
Derivative Counterparty Nonghyup Bank Nonghyup Bank
Contract date Dec. 16, 2024 Dec. 16, 2024
Maturity date Jan. 13, 2025 Jan. 13, 2025
Contract Amounts Pay | ₩ ₩ 2,867  
Contract Amounts Receive | $   $ 2,000
Contract exchange rate 1,433.65 1,433.65
Derivative Counterparty Busan Bank Busan Bank
Contract date Dec. 18, 2024 Dec. 18, 2024
Maturity date Jan. 13, 2025 Jan. 13, 2025
Contract Amounts Pay | ₩ ₩ 4,515  
Contract Amounts Receive | $   $ 3,148
Contract exchange rate 1,434.27 1,434.27
Derivative Counterparty Hana Bank Hana Bank
Contract date Dec. 19, 2024 Dec. 19, 2024
Maturity date Jan. 13, 2025 Jan. 13, 2025
Contract Amounts Pay | ₩ ₩ 8,704  
Contract Amounts Receive | $   $ 6,000
Contract exchange rate 1,450.7 1,450.7
Derivative Counterparty Woori Bank Woori Bank
Contract date Nov. 28, 2024 Nov. 28, 2024
Maturity date Feb. 03, 2025 Feb. 03, 2025
Contract Amounts Pay | ₩ ₩ 4,619  
Contract Amounts Receive | $   $ 3,317
Contract exchange rate 1,392.7 1,392.7
Derivative Counterparty Standard Chartered Standard Chartered
Contract date Nov. 28, 2024 Nov. 28, 2024
Maturity date Feb. 03, 2025 Feb. 03, 2025
Contract Amounts Pay | ₩ ₩ 6,964  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,392.8 1,392.8
Derivative Counterparty Busan Bank Busan Bank
Contract date Nov. 28, 2024 Nov. 28, 2024
Maturity date Feb. 03, 2025 Feb. 03, 2025
Contract Amounts Pay | ₩ ₩ 6,965  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,392.9 1,392.9
Derivative Counterparty JP Morgan JP Morgan
Contract date Nov. 28, 2024 Nov. 28, 2024
Maturity date Feb. 03, 2025 Feb. 03, 2025
Contract Amounts Pay | ₩ ₩ 6,965  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,392.9 1,392.9
Derivative Counterparty HSBC HSBC
Contract date Dec. 20, 2024 Dec. 20, 2024
Maturity date Feb. 26, 2025 Feb. 26, 2025
Contract Amounts Pay | ₩ ₩ 10,112  
Contract Amounts Receive | $   $ 7,000
Contract exchange rate 1,444.5 1,444.5
Derivative Counterparty Bank of America Bank of America
Contract date Dec. 20, 2024 Dec. 20, 2024
Maturity date Feb. 26, 2025 Feb. 26, 2025
Contract Amounts Pay | ₩ ₩ 8,667  
Contract Amounts Receive | $   $ 6,000
Contract exchange rate 1,444.55 1,444.55
Derivative Counterparty Shinhan Bank Shinhan Bank
Contract date Dec. 27, 2024 Dec. 27, 2024
Maturity date Mar. 05, 2025 Mar. 05, 2025
Contract Amounts Pay | ₩ ₩ 8,798  
Contract Amounts Receive | $   $ 6,000
Contract exchange rate 1,466.32 1,466.32
Derivative Counterparty Hana Bank Hana Bank
Contract date Dec. 27, 2024 Dec. 27, 2024
Maturity date Mar. 05, 2025 Mar. 05, 2025
Contract Amounts Pay | ₩ ₩ 10,264  
Contract Amounts Receive | $   $ 7,000
Contract exchange rate 1,466.25 1,466.25
Derivative Counterparty Woori Bank Woori Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Mar. 05, 2025 Mar. 05, 2025
Contract Amounts Pay | ₩ ₩ 7,356  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,471.1 1,471.1
Derivative Counterparty Hana Bank Hana Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Mar. 05, 2025 Mar. 05, 2025
Contract Amounts Pay | ₩ ₩ 8,797  
Contract Amounts Receive | $   $ 6,000
Contract exchange rate 1,466.18 1,466.18
Derivative Counterparty Shinhan Bank Shinhan Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Mar. 05, 2025 Mar. 05, 2025
Contract Amounts Pay | ₩ ₩ 7,325  
Contract Amounts Receive | $   $ 5,000
Contract exchange rate 1,464.92 1,464.92
Derivative Counterparty Busan Bank Busan Bank
Contract date Dec. 30, 2024 Dec. 30, 2024
Maturity date Mar. 05, 2025 Mar. 05, 2025
Contract Amounts Pay | ₩ ₩ 4,395  
Contract Amounts Receive | $   $ 3,000
Contract exchange rate 1,464.85 1,464.85