XML 52 R18.htm IDEA: XBRL DOCUMENT
v3.20.4

Commitments and contingencies | 9 Months Ended
--- | ---
Sep. 30, 2020
Statement [LineItems] |
Commitments and contingencies | 13. Commitments and contingencies The Company is involved in various litigation and claims in the normal course of business and records provisions for claims as required.

X
- Definition The disclosure of commitments and contingent liabilities. [Refer: Contingent liabilities [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Statement lineItems + References No definition available. + Details
Name: | obe_StatementLineItems
Namespace Prefix: | obe_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration