XML 119 R105.htm IDEA: XBRL DOCUMENT
v3.21.1

Lease - Additional Information (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020
Bottom of Range |
Lease [Line Items] |
Lease period | 1 year
Top of Range |
Lease [Line Items] |
Lease period | 5 years

X
- Definition Lease. + References No definition available. + Details
Name: | grvy_LeaseLineItems
Namespace Prefix: | grvy_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lease period. + References No definition available. + Details
Name: | grvy_LeasePeriod
Namespace Prefix: | grvy_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |