Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS (Details 1)

v3.22.2.2
INVESTMENTS (Details 1) - Valuation Technique Binomial Monte-Carlo Cliquet Option Pricing Model [Member]
₩ / shares in Units, ₩ in Billions
9 Months Ended 12 Months Ended
Sep. 30, 2022
$ / shares
Dec. 31, 2021
$ / shares
Sep. 30, 2022
KRW (₩)
₩ / shares
Dec. 31, 2021
KRW (₩)
₩ / shares
Schedule Of Investments [Line Items]        
Principal outstanding (South Korean won) | ₩     ₩ 26.5 ₩ 30.0
Stock price | ₩ / shares     ₩ 1,075 ₩ 2,925
Expected Life (in years) [Member]        
Schedule Of Investments [Line Items]        
Expected life (in years) 8 years 14 days 8 years 9 months 14 days    
Selected Yield [Member]        
Schedule Of Investments [Line Items]        
Investment in convertible bonds, measurement input     16.75 10.50
Expected Volatility (Telcon common stock) [Member]        
Schedule Of Investments [Line Items]        
Investment in convertible bonds, measurement input     78.80 81.31
Risk-free Interest Rate (South Korea government bond) [Member]        
Schedule Of Investments [Line Items]        
Investment in convertible bonds, measurement input     4.14 2.19
Conversion Price [Member]        
Schedule Of Investments [Line Items]        
Conversion price | (per share) $ 0.80 $ 2.39 ₩ 1,150 ₩ 2,847