XML 67 R56.htm IDEA: XBRL DOCUMENT
v3.20.2

Leases (Lease Cost on Consolidated Statement of Operations) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Lease Costs [Line Items] |  |  |  |
Total lease expense | $ 6,698 | $ 6,638 | $ 22,036 | $ 17,114
Lease costs capitalized | 4 | 99 | 1,165 | 99
Total lease cost | 6,702 | 6,737 | 23,201 | 17,213
Production Expense [Member] |  |  |  |
Lease Costs [Line Items] |  |  |  |
Total lease expense | 2,063 | 1,979 | 6,082 | 5,202
General and Administrative Expense [Member] |  |  |  |
Lease Costs [Line Items] |  |  |  |
Total lease expense | 49 | 49 | 147 | 147
Lease Costs Billed To Joint Venture Owners [Member] |  |  |  |
Lease Costs [Line Items] |  |  |  |
Total lease expense | $ 4,586 | $ 4,610 | $ 15,807 | $ 11,765

X
- Definition Lease Costs, Capital Expenditures, Net + References No definition available. + Details
Name: | egy_LeaseCostsCapitalExpendituresNet
Namespace Prefix: | egy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Lease Costs [Line Items] + References No definition available. + Details
Name: | egy_LeaseCostsLineItems
Namespace Prefix: | egy_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating Lease Expense, Gross + References No definition available. + Details
Name: | egy_OperatingLeaseExpenseGross
Namespace Prefix: | egy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of lease cost recognized by lessee for lease contract. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 + Details
Name: | us-gaap_LeaseCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=egy_ProductionExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=egy_LeaseCostsBilledToJointVentureOwnersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |