XML 83 R67.htm IDEA: XBRL DOCUMENT
v3.22.1

Accounts and Other Receivables - Summary of ECLs and Credit Risk Exposures for Accounts and Other Receivables (Details) ₩ in Millions, $ in Millions | Dec. 31, 2021 KRW (₩) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 KRW (₩) | Dec. 31, 2019 KRW (₩) | Dec. 31, 2018 KRW (₩)
--- | --- | --- | --- | --- | ---
Accounts receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Carrying amount | ₩ 53,304 |  | ₩ 60,340 |  |
Loss allowance | 689 |  | 579 | ₩ 165 | ₩ 22
Other receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Carrying amount | 1,085 |  | 13 |  |
Loss allowance | ₩ 5 |  | ₩ 5 | ₩ 4 | ₩ 84
Not due or overdue less than 90 days | Expected Credit Losses and Credit Risk Exposures | Accounts receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 0.10% | 0.10% | 0.10% |  |
Carrying amount | ₩ 52,173 |  | ₩ 57,661 |  |
Loss allowance | ₩ 64 |  | ₩ 54 |  |
Not due or overdue less than 90 days | Expected Credit Losses and Credit Risk Exposures | Other receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 0.00% | 0.00% | 0.00% |  |
Carrying amount | ₩ 1,080 |  | ₩ 8 |  |
Loss allowance | ₩ 0 |  | ₩ 0 |  |
More than 90 days ~ Less than 180 days | Expected Credit Losses and Credit Risk Exposures | Accounts receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 0.10% | 0.10% | 5.00% |  |
Carrying amount | ₩ 438 |  | ₩ 2,138 |  |
Loss allowance | ₩ 0 |  | ₩ 107 |  |
More than 90 days ~ Less than 180 days | Expected Credit Losses and Credit Risk Exposures | Other receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 0.00% | 0.00% | 0.00% |  |
Carrying amount | ₩ 0 |  | ₩ 0 |  |
Loss allowance | ₩ 0 |  | ₩ 0 |  |
More than 180 days ~ Less than 270 days | Expected Credit Losses and Credit Risk Exposures | Accounts receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 73.20% | 73.20% | 55.30% |  |
Carrying amount | ₩ 243 |  | ₩ 276 |  |
Loss allowance | ₩ 178 |  | ₩ 153 |  |
More than 180 days ~ Less than 270 days | Expected Credit Losses and Credit Risk Exposures | Other receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 0.00% | 0.00% | 0.00% |  |
Carrying amount | ₩ 0 |  | ₩ 0 |  |
Loss allowance | ₩ 0 |  | ₩ 0 |  |
More than 270 days ~ Less than 1 year | Expected Credit Losses and Credit Risk Exposures | Accounts receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 98.80% | 98.80% | 99.90% |  |
Carrying amount | ₩ 237 |  | ₩ 79 |  |
Loss allowance | ₩ 234 |  | ₩ 79 |  |
More than 270 days ~ Less than 1 year | Expected Credit Losses and Credit Risk Exposures | Other receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 0.00% | 0.00% | 0.00% |  |
Carrying amount | ₩ 0 |  | ₩ 0 |  |
Loss allowance |  | $ 0 | ₩ 0 |  |
More than 1 year | Expected Credit Losses and Credit Risk Exposures | Accounts receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 100.00% | 100.00% | 100.00% |  |
Carrying amount | ₩ 213 |  | ₩ 186 |  |
Loss allowance | ₩ 213 |  | ₩ 186 |  |
More than 1 year | Expected Credit Losses and Credit Risk Exposures | Other receivables |  |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |  |
Expected loss rate | 100.00% | 100.00% | 100.00% |  |
Carrying amount | ₩ 5 |  | ₩ 5 |  |
Loss allowance |  | $ 5 | ₩ 5 |  |

X
- Definition Accounts receivable carrying value. + References No definition available. + Details
Name: | grvy_AccountsReceivableCarryingValue
Namespace Prefix: | grvy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Trade and other receivables. + References No definition available. + Details
Name: | grvy_TradeAndOtherReceivablesLineItems
Namespace Prefix: | grvy_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2023-01-01 -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b -URIDate 2021-03-24 + Details
Name: | ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The rate of expected credit losses, calculated as percentage of the gross carrying amount. Expected credit losses are the weighted average of credit losses with the respective risks of a default occurring as the weights. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph IG20D -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_IG20D&doctype=Implementation%20Guidance -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35N -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35N&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ExpectedCreditLossRate
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_TradeReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=grvy_OtherReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=grvy_NotDueOrOverdueLessThanNinetyDaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis=grvy_ExpectedCreditLossesAndCreditRiskExposuresMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=grvy_MoreThanNinetyDaysToLessThanOneHundredAndEightyDaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=grvy_MoreThanOneHundredAndEightyDaysLessThanTwoHundredAndSeventyDaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=grvy_MoreThanTwoHundredAndSeventyDaysLessThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=grvy_MoreThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |