v3.26.1
Business Combination - Summary of recognized profit from bargain purchase as a result of business combination (Details)
$ in Thousands, ₩ in Millions
 12 Months Ended
Dec. 31, 2025
KRW (₩)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
KRW (₩)
Dec. 31, 2023
KRW (₩)
Disclosure Of bargain purchase gain occurred as the fair value of identifiable net assets exceeded the consideration transferred [Line Items]        
Bargain purchase gain ₩ 581,010 $ 402,208 ₩ 0 ₩ 0
ABL Life Insurance Co Ltd [Member]        
Disclosure Of bargain purchase gain occurred as the fair value of identifiable net assets exceeded the consideration transferred [Line Items]        
Consideration transferred 264,946      
Identifiable net assets fair value [1] 571,765      
Bargain purchase gain [2] 306,819      
Tongyang Life Insurance Co Ltd [Member]        
Disclosure Of bargain purchase gain occurred as the fair value of identifiable net assets exceeded the consideration transferred [Line Items]        
Consideration transferred 1,281,963      
Identifiable net assets fair value [1] 2,199,458      
Non-controlling interests [3] 236,994      
Hybrid securities [4] 406,310      
Bargain purchase gain [2] ₩ 274,191      
[1] The Group measured the identifiable assets and liabilities of the acquiree at their fair values as of the acquisition date for the purpose of allocating the consideration transferred.
[2] Included in other non-operating income in the consolidated statement of comprehensive income.
[3] The non-controlling interests in Tongyang Life acquired during the current period were measured at the fair value based on the closing price at the acquisition date.
[4] It is a hybrid securities issued by Tongyang Life and classified as equity, which does not grant rights to a proportionate interest of the acquiree’s identifiable net assets, and was measured at fair value using the Hull-White valuation method with discount rates based on credit ratings, interest rate volatility, and exchange rates as input variables.