XML 55 R21.htm IDEA: XBRL DOCUMENT
v3.20.4

Lease receivable (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
Lease Receivables [Abstract] |
Disclosure Of Detailed Information About Lease Receivable Activity Explanatory | Lease receivable relates to the lease component of sub-leased office space. Total lease receivable included in the Consolidated Balance Sheets is as follows:
|  | Nine months ended September 30, 2020 |  |  | Year ended December 31, 2019 |
Balance, beginning of period |  | $ | 39 |  |  | $ | 43 |
Additions (terminations) |  |  | (37 | ) |  |  | 3 |
Finance income |  |  | — |  |  |  | 2 |
Lease payments received |  |  | (2 | ) |  |  | (9 | )
Balance, end of period |  | $ | — |  |  | $ | 39 |
Current portion |  | $ | — |  |  | $ | 9 |
Long-term portion |  | $ | — |  |  | $ | 30 |

X
- Definition Disclosure of detailed information about lease receivable activity. + References No definition available. + Details
Name: | obe_DisclosureOfDetailedInformationAboutLeaseReceivableActivityExplanatoryTextBlock
Namespace Prefix: | obe_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of lease receivables. + References No definition available. + Details
Name: | obe_LeaseReceivablesAbstract
Namespace Prefix: | obe_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration