Amount of premium liability recognized in gain or loss on derivative instruments.

No definition available.

Name:	sogc_DerivativePremiumLiability
Namespace Prefix:	sogc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the number of derivative contracts executed during the period.

+ References

No definition available.

+ Details

Name:	sogc_NumberOfDerivativeContractsExecuted
Namespace Prefix:	sogc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Proceeds from termination used for direct offset of credit facility by the entity.

+ References

No definition available.

+ Details

Name:	sogc_OffsetOfProceedsFromTerminations
Namespace Prefix:	sogc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

+ Details

Name:	us-gaap_RepaymentsOfLongTermLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=sogc_SeniorSecuredRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Derivative Financial Instruments (Notional Instr) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 item	Sep. 30, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)
Derivative
Debt repayments for the senior secured revolving credit facility			$ 24,324	$ 40,000
Number of contracts executed \| item	0
Derivative premium liability released as an expense				$ 4,400
New Revolving Credit Facility
Derivative
Debt repayments for the senior secured revolving credit facility		$ 24,300
Offset of proceeds from terminations		$ 70,800	$ 70,800