XML 64 R58.htm IDEA: XBRL DOCUMENT
v3.24.3

Fair Value Measurements - Litigation Financing - Additional Information (Detail) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 17, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Fair Value Disclosures [Abstract] |  |  |  |  |  |
Fair value of the obligation |  |  |  | $ 58.6 |  | $ 52.1
Asset at fair value, changes in fair value resulting from changes in assumptions |  | $ 5.2 | $ 1.7 | $ 6.5 | $ 5.1 |
Litigation settlement, amount awarded from Mexico | $ 37.1 |  |  |  |  |

X
- Definition Fair value of the obligation + References No definition available. + Details
Name: | omex_FairValueOfTheObligation
Namespace Prefix: | omex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase (decrease) in fair value from changes in the assumptions or model used to calculate the fair value of a contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References No definition available. + Details
Name: | us-gaap_AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmountAwardedFromOtherParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration