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Cash and Cash Equivalents (Tables)
 12 Months Ended
Dec. 31, 2017
Text block1 [abstract]  
Summary of Restricted Cash and Cash Equivalents

Restricted cash and cash equivalents as of December 31, 2016 and 2017, are as follows:

 

(In millions of Korean won)    Type    2016    2017    Description

Restricted cash and

cash equivalents

    Restricted deposit    ￦19,920    ￦16,837    Deposit restricted for governmental project and others