XML 68 R58.htm IDEA: XBRL DOCUMENT
v3.24.3

Commitments and Contingencies (Details) kr in Thousands, $ in Thousands |  |  |  | 1 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 01, 2024 USD ($) | Oct. 10, 2023 NOK (kr) | Oct. 10, 2023 USD ($) | Sep. 29, 2023 NOK (kr) | Dec. 31, 2021 NOK (kr) | Dec. 31, 2021 USD ($) | Jan. 31, 2021 NOK (kr) | Jan. 31, 2021 USD ($) | Nov. 24, 2022 USD ($)
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Escrow |  |  |  |  |  |  |  |  | $ 6,500
Kunlun |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Litigation amount received from escrow |  | kr 65,000 | $ 5,929 |  |  |  |  |  |
Governmental attorneys fees | $ 50 |  |  |  |  |  |  |  |
NDPA |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Amount of administrative fine imposed |  |  |  |  |  |  | kr 100,000 | $ 9,489 |
Reduced to administrative fine imposed |  |  |  | kr 65,000 | kr 65,000 | $ 6,168 |  |  |

X
- Definition Loss Contingency, Damages Sought, Reduced Value + References No definition available. + Details
Name: | grnd_LossContingencyDamagesSoughtReducedValue
Namespace Prefix: | grnd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Loss Contingency, Escrow + References No definition available. + Details
Name: | grnd_LossContingencyEscrow
Namespace Prefix: | grnd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(6)) -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_LitigationSettlementExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The value (monetary amount) of the award the plaintiff seeks in the legal matter. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-4 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-9 + Details
Name: | us-gaap_LossContingencyDamagesSoughtValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Cash received for the settlement of litigation during the current period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
Name: | us-gaap_ProceedsFromLegalSettlements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=grnd_KunlunMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=grnd_NorwegianDataProtectionAuthorityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |