1.0.0.3 false Consolidated Statements of Operations (Parentheticals) (USD $) In Thousands false 1 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 2 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 3 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 2 Consolidated Statements of Operations (Parentheticals) [Abstract] 0 us-gaap_IncomeStatementAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 3 Unrealized gains (losses) included in revenues 1 rri_UnrealizedGainsLossesIncludedInRevenue rri false credit duration monetary The non-cash gains/losses included in revenue related to current changes in forward commodity prices for derivative... false false false false false false false false false 1 true true -44170000 -44170 false false 2 true true -1151000 -1151 false false 3 true true 31662000 31662 false false The non-cash gains/losses included in revenue related to current changes in forward commodity prices for derivative instruments receiving mark-to-market accounting treatment which will settle in future periods and ineffectiveness on cash flow hedges. No authoritative reference available. false 4 Revenue from affiliates included in revenues 1 us-gaap_RevenueFromRelatedParties us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 253001000 253001 false false 3 false true 127083000 127083 false false No definition available. No authoritative reference available. false 5 Unrealized gains (losses) included in cost of sales 1 rri_UnrealizedGainsLossesIncludedInCostOfSales rri false debit duration monetary The non-cash gains/losses included in cost of sales related to current changes in forward commodity prices for derivative... false false false false false false false false false 1 false true 65961000 65961 false false 2 false true -7405000 -7405 false false 3 false true -25113000 -25113 false false The non-cash gains/losses included in cost of sales related to current changes in forward commodity prices for derivative instruments receiving mark-to-market accounting treatment which will settle in future periods and ineffectiveness on cash flow hedges. No authoritative reference available. false 6 Cost of sales from affiliates included in cost of sales 1 us-gaap_AffiliateCosts us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 true true 0 0 false false 2 true true 71568000 71568 false false 3 true true 42645000 42645 false false No definition available. No authoritative reference available. false false 3 5 false Thousands UnKnown UnKnown false true