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us-gaap_CapitalUnitsByClassAxis xbrldi http://xbrl.org/2006/xbrldi rgnc_ClassDUnitsMember us-gaap_CapitalUnitsByClassAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit13 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 5 REVENUES 3 us-gaap_RevenuesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:stringItemType string No definition available. false 6 Gas sales, including related party amounts of $447, $0, and $0 for the three and six months 4 us-gaap_NaturalGasMidstreamRevenue us-gaap true credit duration No definition available. false false false false false false false false false false false label false 1 true true false false 48103000 48103 true false false 2 false false false false 0 0 true false false 3 true true false false 89170000 89170 true false false 4 true true false false 106897000 106897 true false false 5 true true false false 232063000 232063 true false false 6 true true false false 254793000 254793 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Midstream refers to those gas industry activities that fall between exploration and production (upstream) and refining and marketing (downstream). It may be applied to the gathering, processing, transmission and storage of natural gas; including the treating of natural gas to remove impurities, along with the sale of by-products such as residue gas, natural gas liquids and condensate. No authoritative reference available. false 7 NGL sales including related party amounts of $18,054, $0, and $0 for the three and six months 4 rgnc_NaturalGasLiquidsSalesRevenues rgnc false credit duration Revenue from the sales of natural gas liquids during the reporting period. Natural gas liquids are found with natural gas and... false false false false false false false false false false false terselabel false 1 false true false false 28766000 28766 true false false 2 false false false false 0 0 true false false 3 false true false false 69033000 69033 true false false 4 false true false false 57676000 57676 true false false 5 false true false false 166362000 166362 true false false 6 false true false false 107261000 107261 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Revenue from the sales of natural gas liquids during the reporting period. Natural gas liquids are found with natural gas and usually are composed of ethane, propane, natural gasoline, butane, and isobutane. No authoritative reference available. false 8 Gathering, transportation and other fees, including related party amounts of $2,086, $3,680, and $2,239 for the three months and $2,086, $12,200 and $3,376 for the six months 4 us-gaap_GasGatheringTransportationMarketingAndProcessingRevenue us-gaap true credit duration No definition available. false false false false false false false false false false false label false 1 false true false false 22884000 22884 true false false 2 false false false false 0 0 true false false 3 false true false false 45733000 45733 true false false 4 false true false false 69231000 69231 true false false 5 false true false false 116061000 116061 true false false 6 false true false false 142079000 142079 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Revenue related to midstream and downstream gas activities. May include the following: gathering from wells, processing to remove impurities, storage, transmission, and the sale of natural gas and related products. No authoritative reference available. false 9 Net realized and unrealized (loss) gain from derivatives 4 rgnc_RealizedUnrealizedGainLossOnDerivativesAndCommodityContracts rgnc false credit duration Aggregate net realized and unrealized gain (loss) on settlement and changes in fair value of commodity related derivative... false false false false false false false false false false false terselabel false 1 false true false false -130000 -130 true false false 2 false false false false 0 0 true false false 3 false true false false 223000 223 true false false 4 false true false false 12515000 12515 true false false 5 false true false false -716000 -716 true false false 6 false true false false 26970000 26970 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Aggregate net realized and unrealized gain (loss) on settlement and changes in fair value of commodity related derivative instruments recognized in earnings during the period. No authoritative reference available. false 10 Other 4 us-gaap_OtherSalesRevenueNet us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 3357000 3357 true false false 2 false false false false 0 0 true false false 3 false true false false 7336000 7336 true false false 4 false true false false 7223000 7223 true false false 5 false true false false 15477000 15477 true false false 6 false true false false 12417000 12417 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Revenues from the sale of other goods or rendering of other services, not elsewhere specified in the taxonomy; net of (reduced by) sales adjustments, returns, allowances, and discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 false 11 Total revenues 4 us-gaap_Revenues us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 102980000 102980 true false false 2 false false false false 0 0 true false false 3 false true false false 211495000 211495 true false false 4 false true false false 253542000 253542 true false false 5 false true false false 529247000 529247 true false false 6 false true false false 543520000 543520 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 true 12 OPERATING COSTS AND EXPENSES 3 us-gaap_OperatingCostsAndExpensesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:stringItemType string No definition available. false 13 Cost of sales, including related party amounts of $2,281, $3,198, and $1,453 for the three months and $2,281, $6,564 and $1,700 for the six months 4 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false true false false 74081000 74081 true false false 2 false false false false 0 0 true false false 3 false true false false 147262000 147262 true false false 4 false true false false 157347000 157347 true false false 5 false true false false 371871000 371871 true false false 6 false true false false 339875000 339875 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 14 Operation and maintenance 4 us-gaap_OperatingCostsAndExpenses us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 11942000 11942 true false false 2 false false false false 0 0 true false false 3 false true false false 21430000 21430 true false false 4 false true false false 31974000 31974 true false false 5 false true false false 53841000 53841 true false false 6 false true false false 68016000 68016 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense. No authoritative reference available. false 15 General and administrative, including related party amounts of $833, $0, and $0 for the three and six months 4 us-gaap_GeneralAndAdministrativeExpense us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false true false false 7104000 7104 true false false 2 false false false false 0 0 true false false 3 false true false false 21809000 21809 true false false 4 false true false false 14127000 14127 true false false 5 false true false false 37212000 37212 true false false 6 false true false false 29205000 29205 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No authoritative reference available. false 16 Loss (gain) on asset sales, net 4 us-gaap_GainLossOnDispositionOfAssets us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 10000 10 true false false 2 false false false false 0 0 true false false 3 false true false false 19000 19 true false false 4 false true false false 651000 651 true false false 5 false true false false 303000 303 true false false 6 false true false false -133280000 -133280 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The gains and losses included in earnings resulting from the sale or disposal of tangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 47 false 17 Depreciation and amortization 4 us-gaap_DepreciationAndAmortization us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 10995000 10995 true false false 2 false false false false 0 0 true false false 3 false true false false 18609000 18609 true false false 4 false true false false 26236000 26236 true false false 5 false true false false 46084000 46084 true false false 6 false true false false 54125000 54125 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 false 18 Total operating costs and expenses 4 us-gaap_CostsAndExpenses us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 104132000 104132 true false false 2 false false false false 0 0 true false false 3 false true false false 209129000 209129 true false false 4 false true false false 230335000 230335 true false false 5 false true false false 509311000 509311 true false false 6 false true false false 357941000 357941 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Total costs of sales and operating expenses for the period. No authoritative reference available. true 19 OPERATING (LOSS) INCOME 3 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false -1152000 -1152 true false false 2 false false false false 0 0 true false false 3 false true false false 2366000 2366 true false false 4 false true false false 23207000 23207 true false false 5 false true false false 19936000 19936 true false false 6 false true false false 185579000 185579 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. true 20 Income from unconsolidated subsidiaries 3 us-gaap_IncomeLossFromEquityMethodInvestments us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 8121000 8121 true false false 2 false false false false 0 0 true false false 3 false true false false 7959000 7959 true false false 4 false true false false 1587000 1587 true false false 5 false true false false 15872000 15872 true false false 6 false true false false 1923000 1923 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. Such amount typically reflects adjustments similar to those made in preparing consolidated statements, including adjustments to eliminate intercompany gains and losses, and to amortize, if appropriate, any difference between cost and underlying equity in net assets of the investee at the date of investment. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph c Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 6 -Subparagraph b false 21 Interest expense, net 3 us-gaap_InterestExpense us-gaap true debit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -8109000 -8109 true false false 2 false false false false 0 0 true false false 3 false true false false -14114000 -14114 true false false 4 false true false false -19568000 -19568 true false false 5 false true false false -36459000 -36459 true false false 6 false true false false -33795000 -33795 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 9 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 false 22 Other income and deductions, net 3 us-gaap_OtherNonoperatingIncomeExpense us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false -3510000 -3510 true false false 2 false false false false 0 0 true false false 3 false true false false -624000 -624 true false false 4 false true false false 214000 214 true false false 5 false true false false -3891000 -3891 true false false 6 false true false false 256000 256 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The net amount of other nonoperating income and expense, which does not qualify for separate disclosure on the income statement under materiality guidelines. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 false 23 (LOSS) INCOME BEFORE INCOME TAXES 3 rgnc_IncomeLossFromContinuingOperationsBeforeIncomeTaxes rgnc false credit duration Sum of operating profit and nonoperating income (expense) before income taxes, extraordinary items, cumulative effects of... false false false false false false false false false false false totallabel false 1 false true false false -4650000 -4650 true false false 2 false false false false 0 0 true false false 3 false true false false -4413000 -4413 true false false 4 false true false false 5440000 5440 true false false 5 false true false false -4542000 -4542 true false false 6 false true false false 153963000 153963 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Sum of operating profit and nonoperating income (expense) before income taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest. No authoritative reference available. true 24 Income tax expense (benefit) 3 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 245000 245 true false false 2 false false false false 0 0 true false false 3 false true false false 83000 83 true false false 4 false true false false -515000 -515 true false false 5 false true false false 404000 404 true false false 6 false true false false -416000 -416 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b false 25 NET (LOSS) INCOME 3 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false -4895000 -4895 true false false 2 false false false false 0 0 true false false 3 false true false false -4496000 -4496 true false false 4 false true false false 5955000 5955 true false false 5 false true false false -4946000 -4946 true false false 6 false true false false 154379000 154379 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) true 26 Net income attributable to noncontrolling interest 3 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest us-gaap true debit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -29000 -29 true false false 2 false false false false 0 0 true false false 3 false true false false -244000 -244 true false false 4 false true false false -65000 -65 true false false 5 false true false false -406000 -406 true false false 6 false true false false -100000 -100 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The portion of net income (loss) attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 false 27 NET (LOSS) INCOME ATTRIBUTABLE TO REGENCY ENERGY PARTNERS LP 3 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false -4924000 -4924 true false false 2 false false false false 0 0 true false false 3 false true false false -4740000 -4740 true false false 4 false true false false 5890000 5890 true false false 5 false true false false -5352000 -5352 true false false 6 false true false false 154279000 154279 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 true 28 Amounts attributable to Series A convertible redeemable preferred units 3 us-gaap_OtherPreferredStockDividendsAndAdjustments us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 668000 668 true false false 2 false false false false 0 0 true false false 3 false true false false 1335000 1335 true false false 4 false false false false 0 0 true false false 5 false true false false 3336000 3336 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Other preferred stock dividends and adjustments, not otherwise defined in the taxonomy, that are necessary to adjust net income to obtain net income applicable to common stockholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section Q false 29 General partner's interest, including IDR 3 us-gaap_NetIncomeLossAllocatedToGeneralPartners us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 803000 803 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false 741000 741 true false false 5 false true false false 662000 662 true false false 6 false true false false 4274000 4274 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Aggregate amount of net income allocated to general partners in a publicly trade limited partnership or master limited partnership (MLP). General partners have unlimited liability and manage the partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F false 30 Amount allocated to non-vested common units 3 rgnc_AllocationOfNetLossIncomeToNonvestedCommonUnits rgnc false debit duration Allocation of net (loss) income to non-vested common units false false false false false false false false false false false terselabel false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false -137000 -137 true false false 5 false true false false -79000 -79 true false false 6 false true false false 1217000 1217 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Allocation of net (loss) income to non-vested common units No authoritative reference available. false 31 Beneficial conversion feature for Class D common units 3 rgnc_BeneficialConversionFeatureForClassDCommonUnits rgnc false debit duration Beneficial conversion feature for Class D common units false false false false false false false false false false false terselabel false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 820000 820 true false false xbrli:monetaryItemType monetary Beneficial conversion feature for Class D common units No authoritative reference available. false 32 Limited partners' interest 3 us-gaap_NetIncomeLossAllocatedToLimitedPartners us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false -6395000 -6395 true false false 2 false false false false 0 0 true false false 3 false true false false -6075000 -6075 true false false 4 false true false false 5286000 5286 true false false 5 false true false false -9271000 -9271 true false false 6 false true false false 147968000 147968 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Aggregate amount of net income allocated to general partners in a publicly trade limited partnership or master limited partnership (MLP). Limited partners have limited liability and do not manage the partnership. No authoritative reference available. true 33 Basic and Diluted (loss) earnings per unit: 3 us-gaap_EarningsPerUnitAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:stringItemType string No definition available. false 34 Amount allocated to common units 4 us-gaap_NetIncomeLossAllocatedToLimitedPartners us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false -6395000 -6395 true false false 2 false false false false 0 0 true false false 3 false true false false -6075000 -6075 true false false 4 false true false false 5286000 5286 true false false 5 false true false false -9271000 -9271 true false false 6 false true false false 147968000 147968 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:monetaryItemType monetary Aggregate amount of net income allocated to general partners in a publicly trade limited partnership or master limited partnership (MLP). Limited partners have limited liability and do not manage the partnership. No authoritative reference available. false 35 Weighted average number of common units outstanding 4 us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding us-gaap true na duration No definition available. false false false false false false false false false false false false 1 false true false false 119600652 119600652 true false false 2 false false false false 0 0 true false false 3 false true false false 92832219 92832219 true false false 4 false true false false 80550149 80550149 true false false 5 false true false false 92788319 92788319 true false false 6 false true false false 78920074 78920074 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false xbrli:sharesItemType shares Weighted average number of limited partnership units outstanding determined by relating the portion of time within a reporting period that limited partnership units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F false 36 Basic (loss) income per common unit 4 us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnit us-gaap true na duration No definition available. false false false false false false false false false false false true 1 true true false false -0.05 -0.05 true false false 2 false false false false 0 0 true false false 3 true true false false -0.07 -0.07 true false false 4 true true false false 0.07 0.07 true false false 5 true true false false -0.10 -0.10 true false false 6 true true false false 1.87 1.87 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false us-types:perUnitItemType decimal Net income (loss) allocated to each outstanding limited partnership unit in a publicly traded limited partnership or master limited partnership (MLP). Limited partners have limited liability and do not manage the partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F false 37 Diluted (loss) income per common unit 4 us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitDiluted us-gaap true na duration No definition available. false false false false false false false false false false false true 1 true true false false -0.05 -0.05 true false false 2 false false false false 0 0 true false false 3 true true false false -0.07 -0.07 true false false 4 true true false false 0.06 0.06 true false false 5 true true false false -0.10 -0.10 true false false 6 true true false false 1.85 1.85 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false us-types:perUnitItemType decimal Net income (loss) allocated to each limited partner unit outstanding during the reporting period and each unit that would have been outstanding assuming the issuance of limited partner units for all dilutive potential units outstanding during the reporting period. Limited partners have limited liability and do not manage the partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F false 38 Beneficial conversion feature for Class D common units 4 rgnc_BeneficialConversionFeatureForClassDCommonUnits rgnc false debit duration Beneficial conversion feature for Class D common units false false false false false false false false false false false false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 true true false false 820000 820 true false false xbrli:monetaryItemType monetary Beneficial conversion feature for Class D common units No authoritative reference available. false 39 Total number of Class D common units outstanding 4 rgnc_TotalNumberOfClassDCommonUnitsOutstanding rgnc false na duration Total number of Class D common units outstanding false false false false false false false false false false false false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 7276506 7276506 true false false xbrli:sharesItemType shares Total number of Class D common units outstanding No authoritative reference available. false 40 Income per Class D common unit due to beneficial conversion feature 4 rgnc_IncomePerClassDCommonUnitDueToBeneficialConversionFeature rgnc false na duration Income per Class D common unit due to beneficial conversion feature false false false false false false false false false false false true 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 true true false false 0.11 0.11 true false false us-types:perShareItemType decimal Income per Class D common unit due to beneficial conversion feature No authoritative reference available. false 41 Distributions paid per unit 4 us-gaap_DistributionsPerLimitedPartnershipUnitOutstanding us-gaap true na duration No definition available. false false false false false false false false false false false true 1 false false false false 0 0 true false false 2 true true false false 0.445 0.445 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 true true false false 0.445 0.445 true false false 8 true true false false 0.445 0.445 true false false 9 true true false false 0.445 0.445 true false false 10 true true false false 0.89 0.89 true false false 11 false false false false 0 0 true false false us-types:perShareItemType decimal Cash dividends declared or paid to each outstanding limited partnership unit of a publicly traded limited partnership or master limited partnership (MLP) during the reporting period. Limited partners have limited liability and do not manage the partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F false 11 37 false Thousands NoRounding NoRounding false true