Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2015
Accounts and Notes Receivable, Net [Abstract]
Contractual interest expense	$ 50,871	$ 142,592

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