XML 131 R117.htm IDEA: XBRL DOCUMENT
v3.21.1

Segment Information - Summary Revenue from External Customers by Country (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure Of Geographical Areas [Line Items] |  |  |
Revenue | ₩ 405,953 | ₩ 360,967 | ₩ 286,770
Korea |  |  |
Disclosure Of Geographical Areas [Line Items] |  |  |
Revenue | 109,895 | 45,273 | 80,814
Taiwan |  |  |
Disclosure Of Geographical Areas [Line Items] |  |  |
Revenue | 100,049 | 52,118 | 98,210
Japan |  |  |
Disclosure Of Geographical Areas [Line Items] |  |  |
Revenue | 22,500 | 28,469 | 9,767
The United States of America |  |  |
Disclosure Of Geographical Areas [Line Items] |  |  |
Revenue | 20,659 | 55,062 | 10,572
Thailand |  |  |
Disclosure Of Geographical Areas [Line Items] |  |  |
Revenue | 59,086 | 62,043 | 43,846
The Philippines |  |  |
Disclosure Of Geographical Areas [Line Items] |  |  |
Revenue | 23,690 | 30,951 | 15,539
Others |  |  |
Disclosure Of Geographical Areas [Line Items] |  |  |
Revenue | 57,345 | 64,696 | 18,663
IDAHO |  |  |
Disclosure Of Geographical Areas [Line Items] |  |  |
Revenue | ₩ 12,729 | ₩ 22,355 | ₩ 9,359

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfGeographicalAreasLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Paragraph 113 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_113_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Paragraph 114 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_114&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_RevenueFromContractsWithCustomers
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_KR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_TW
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_JP
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_TH
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_PH
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=grvy_OthersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=stpr_ID
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |