XML 140 R103.htm IDEA: XBRL DOCUMENT
v3.25.2

Revenue - Summary of Contract Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 10 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 15, 2023 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2023
Contract assets [abstract] |  |  |  |
Balance at beginning of period | $ 1,364 | $ 225 | $ 1,730 | $ 672
Transferred to trade receivables | (1,364) | (225) | (1,730) | (672)
Recognized as revenue | 225 | 1,730 | 983 | 1,364
Balance at end of period | $ 225 | $ 1,730 | $ 983 | $ 1,364

X
- References No definition available. + Details
Name: | ifrs-full_ContractAssetsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of current contract assets. [Refer: Contract assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2024-01-01 -Paragraph 105 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_105&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CurrentContractAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The increase (decrease) in contract assets resulting from cumulative catch-up adjustments to revenue. [Refer: Contract assets; Revenue from contracts with customers] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 15 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_118_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseThroughCumulativeCatchupAdjustmentsToRevenueContractAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase decrease through transferred to trade receivables. + References No definition available. + Details
Name: | omse_IncreaseDecreaseThroughTransferredToTradeReceivables
Namespace Prefix: | omse_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration