Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details 1)

v3.23.1
INVESTMENTS (Details 1) - Valuation Technique Binomial Monte-Carlo Cliquet Option Pricing Model [Member]
₩ / shares in Units, ₩ in Billions
12 Months Ended
Dec. 31, 2022
KRW (₩)
₩ / shares
Dec. 31, 2021
KRW (₩)
₩ / shares
Dec. 31, 2022
$ / shares
Dec. 31, 2021
$ / shares
Schedule Of Investments [Line Items]        
Principal outstanding (South Korean won) | ₩ ₩ 26.5 ₩ 30.0    
Stock price | ₩ / shares ₩ 1,015 ₩ 2,925    
Expected Life (in years) [Member]        
Schedule Of Investments [Line Items]        
Expected life (in years) 7 years 9 months 14 days 8 years 9 months 14 days    
Selected Yield [Member]        
Schedule Of Investments [Line Items]        
Investment in convertible bonds, measurement input 0.1350 0.1050    
Expected Volatility (Telcon common stock) [Member]        
Schedule Of Investments [Line Items]        
Investment in convertible bonds, measurement input 0.7850 0.8131    
Risk-free Interest Rate (South Korea government bond) [Member]        
Schedule Of Investments [Line Items]        
Investment in convertible bonds, measurement input 0.0374 0.0219    
Expected Dividend Yield [Member]        
Schedule Of Investments [Line Items]        
Investment in convertible bonds, measurement input 0.0000 0.0000    
Conversion Price [Member]        
Schedule Of Investments [Line Items]        
Conversion price | (per share) ₩ 1,068 ₩ 2,847 $ 0.85 $ 2.39