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Cash and Cash Equivalents (Tables)
12 Months Ended
Dec. 31, 2019
Text block [abstract]  
Summary of Restricted Cash and Cash Equivalents
Restricted cash and cash equivalents as at December 31, 2018 and 2019, are as follows:
 
(In millions of Korean won)
  
Type
  
December 31,
2018
  
December 31,
2019
  
Description
Restricted cash and
cash equivalents
  Restricted deposit  
23,970
  
21,290
  Deposit restricted for governmental project and others