Consolidated Statements of Operations (Parenthetical) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($)
Accounts and Notes Receivable, Net [Abstract]
Contractual interest expense	$ 193,495

Amount of the cost of borrowed funds accounted for as contractual interest expense.

No definition available.

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