00000 - Document - Template Link link:presentationLink link:calculationLink link:definitionLink 100000 - Document - Document and Entity Information link:calculationLink link:presentationLink link:definitionLink 100010 - Statement - CONSOLIDATED BALANCE SHEETS link:calculationLink link:presentationLink link:definitionLink 100020 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 100030 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS link:calculationLink link:presentationLink link:definitionLink 100040 - Statement - CONSOLIDATED STATEMENTS OF PARTNERS' CAPITAL link:calculationLink link:presentationLink link:definitionLink 100050 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:calculationLink link:presentationLink link:definitionLink 100060 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 100070 - Disclosure - ORGANIZATION, BUSINESS OPERATIONS AND PRESENTATION AND CONSOLIDATION link:calculationLink link:presentationLink link:definitionLink 100080 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:calculationLink link:presentationLink link:definitionLink 100090 - Disclosure - REVENUE link:calculationLink link:presentationLink link:definitionLink 100100 - Disclosure - SEGMENT INFORMATION link:calculationLink link:presentationLink link:definitionLink 100110 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT, NET link:calculationLink link:presentationLink link:definitionLink 100120 - Disclosure - AMORTIZING INTANGIBLE ASSETS link:calculationLink link:presentationLink link:definitionLink 100130 - Disclosure - GOODWILL link:calculationLink link:presentationLink link:definitionLink 100140 - Disclosure - EQUITY METHOD INVESTMENTS link:calculationLink link:presentationLink link:definitionLink 100150 - Disclosure - DEFERRED REVENUE link:calculationLink link:presentationLink link:definitionLink 100160 - Disclosure - DEBT link:calculationLink link:presentationLink link:definitionLink 100170 - Disclosure - FINANCIAL INSTRUMENTS link:calculationLink link:presentationLink link:definitionLink 100180 - Disclosure - PARTNERS' CAPITAL AND MEZZANINE CAPITAL link:calculationLink link:presentationLink link:definitionLink 100190 - Disclosure - EARNINGS PER UNIT link:calculationLink link:presentationLink link:definitionLink 100200 - Disclosure - UNIT-BASED AND NONCASH COMPENSATION link:calculationLink link:presentationLink link:definitionLink 100210 - Disclosure - RELATED-PARTY TRANSACTIONS link:calculationLink link:presentationLink link:definitionLink 100220 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES link:calculationLink link:presentationLink link:definitionLink 100230 - Disclosure - DISPOSITIONS, DROP DOWN TRANSACTIONS AND RESTRUCTURING link:calculationLink link:presentationLink link:definitionLink 100240 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION link:calculationLink link:presentationLink link:definitionLink 100250 - Disclosure - UNAUDITED QUARTERLY FINANCIAL DATA link:calculationLink link:presentationLink link:definitionLink 100260 - Disclosure - SUBSEQUENT EVENTS link:calculationLink link:presentationLink link:definitionLink 100270 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:calculationLink link:presentationLink link:definitionLink 100280 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:calculationLink link:presentationLink link:definitionLink 100290 - Disclosure - REVENUE (Tables) link:calculationLink link:presentationLink link:definitionLink 100300 - Disclosure - SEGMENT INFORMATION (Tables) link:calculationLink link:presentationLink link:definitionLink 100310 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT, NET (Tables) link:calculationLink link:presentationLink link:definitionLink 100320 - Disclosure - AMORTIZING INTANGIBLE ASSETS (Tables) link:calculationLink link:presentationLink link:definitionLink 100330 - Disclosure - GOODWILL (Tables) link:calculationLink link:presentationLink link:definitionLink 100340 - Disclosure - EQUITY METHOD INVESTMENTS (Tables) link:calculationLink link:presentationLink link:definitionLink 100350 - Disclosure - DEFERRED REVENUE (Tables) link:calculationLink link:presentationLink link:definitionLink 100360 - Disclosure - DEBT (Tables) link:calculationLink link:presentationLink link:definitionLink 100370 - Disclosure - FINANCIAL INSTRUMENTS (Tables) link:calculationLink link:presentationLink link:definitionLink 100380 - Disclosure - PARTNERS' CAPITAL AND MEZZANINE CAPITAL (Tables) link:calculationLink link:presentationLink link:definitionLink 100390 - Disclosure - EARNINGS PER UNIT (Tables) link:calculationLink link:presentationLink link:definitionLink 100400 - Disclosure - UNIT-BASED AND NONCASH COMPENSATION (Tables) link:calculationLink link:presentationLink link:definitionLink 100410 - Disclosure - RELATED-PARTY TRANSACTIONS (Tables) link:calculationLink link:presentationLink link:definitionLink 100420 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES (Tables) link:calculationLink link:presentationLink link:definitionLink 100430 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Tables) link:calculationLink link:presentationLink link:definitionLink 100440 - Disclosure - UNAUDITED QUARTERLY FINANCIAL DATA (Tables) link:calculationLink link:presentationLink link:definitionLink 100450 - Disclosure - ORGANIZATION, BUSINESS OPERATIONS AND PRESENTATION AND CONSOLIDATION - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100460 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment (Details) link:calculationLink link:presentationLink link:definitionLink 100470 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100480 - Disclosure - REVENUE - Narrative1 (Details) link:calculationLink link:presentationLink link:definitionLink 100480 - Disclosure - REVENUE - Narrative1 (Details) link:calculationLink link:presentationLink link:definitionLink 100490 - Disclosure - REVENUE - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100500 - Disclosure - REVENUE - Schedule of Estimated Revenue Expected to be Recognized and MVC Shortfall Payments (Details) link:calculationLink link:presentationLink link:definitionLink 100500 - Disclosure - REVENUE - Schedule of Estimated Revenue Expected to be Recognized and MVC Shortfall Payments (Details) link:calculationLink link:presentationLink link:definitionLink 100510 - Disclosure - REVENUE - Schedule of Disaggregated Revenue by Geographic Area and Major Products and Services Reportable Segments (Details) link:calculationLink link:presentationLink link:definitionLink 100520 - Disclosure - REVENUE - Schedule of Information about Contract Assets from Contracts with Customers (Details) link:calculationLink link:presentationLink link:definitionLink 100530 - Disclosure - SEGMENT INFORMATION - Assets, Revenues, Depreciation and Amortization, and Capital Expenditures by Reportable Segment (Details) link:calculationLink link:presentationLink link:definitionLink 100540 - Disclosure - SEGMENT INFORMATION - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100550 - Disclosure - SEGMENT INFORMATION - Concentration Risk (Details) link:calculationLink link:presentationLink link:definitionLink 100560 - Disclosure - SEGMENT INFORMATION - Adjusted EBITDA by Reportable Segment (Details) link:calculationLink link:presentationLink link:definitionLink 100570 - Disclosure - SEGMENT INFORMATION - Reconciliation of Net Income (Loss) to Adjusted EBITDA (Details) link:calculationLink link:presentationLink link:definitionLink 100580 - Disclosure - SEGMENT INFORMATION - Schedule of Adjustments Related to Minimum Volume Commitments Shortfall Payments (Details) link:calculationLink link:presentationLink link:definitionLink 100590 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT, NET - Schedule of Property, Plant, and Equipment, Net (Details) link:calculationLink link:presentationLink link:definitionLink 100600 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT, NET - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100610 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT, NET - Schedule of Long-Lived Asset Impairments (Details) link:calculationLink link:presentationLink link:definitionLink 100620 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT, NET - Schedule of Depreciation Expense and Capitalized Interest (Details) link:calculationLink link:presentationLink link:definitionLink 100630 - Disclosure - AMORTIZING INTANGIBLE ASSETS - Intangible Assets and Liabilities Subject to Amortization (Details) link:calculationLink link:presentationLink link:definitionLink 100640 - Disclosure - AMORTIZING INTANGIBLE ASSETS - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100650 - Disclosure - AMORTIZING INTANGIBLE ASSETS - Recognized Amortization Expense in Other Revenues and Cost and Expenses (Details) link:calculationLink link:presentationLink link:definitionLink 100660 - Disclosure - AMORTIZING INTANGIBLE ASSETS - Estimated Aggregate Annual Amortization Expected to be Recognized (Details) link:calculationLink link:presentationLink link:definitionLink 100670 - Disclosure - GOODWILL - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100680 - Disclosure - GOODWILL - Schedule of goodwill (Details) link:calculationLink link:presentationLink link:definitionLink 100690 - Disclosure - EQUITY METHOD INVESTMENTS - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100700 - Disclosure - EQUITY METHOD INVESTMENTS - Rollforward of the Investment in Equity Method Investees (Details) link:calculationLink link:presentationLink link:definitionLink 100710 - Disclosure - EQUITY METHOD INVESTMENTS - Rollforward of the Investment in Equity Method Investees Parenthetical (Details) link:calculationLink link:presentationLink link:definitionLink 100720 - Disclosure - EQUITY METHOD INVESTMENTS - Balance Sheet Information (Details) link:calculationLink link:presentationLink link:definitionLink 100730 - Disclosure - EQUITY METHOD INVESTMENTS - Statements of Operations Information (Details) link:calculationLink link:presentationLink link:definitionLink 100740 - Disclosure - DEFERRED REVENUE - Rollforward of deferred revenue (Details) link:calculationLink link:presentationLink link:definitionLink 100750 - Disclosure - DEBT - Components of Long-Term Debt (Details) link:calculationLink link:presentationLink link:definitionLink 100760 - Disclosure - DEBT - Components of Long-Term Debt (Parenthetical) (Details) link:calculationLink link:presentationLink link:definitionLink 100770 - Disclosure - DEBT - Maturities (Details) link:calculationLink link:presentationLink link:definitionLink 100780 - Disclosure - DEBT - Revolving Credit Facility (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100790 - Disclosure - DEBT - Senior Notes (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100800 - Disclosure - FINANCIAL INSTRUMENTS - Concentration Risk - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100810 - Disclosure - FINANCIAL INSTRUMENTS - Fair Value Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100820 - Disclosure - FINANCIAL INSTRUMENTS - Fair value of Debt Instruments (Details) link:calculationLink link:presentationLink link:definitionLink 100830 - Disclosure - FINANCIAL INSTRUMENTS - Fair value of Debt Instruments (Parenthetical) (Details) link:calculationLink link:presentationLink link:definitionLink 100840 - Disclosure - PARTNERS' CAPITAL AND MEZZANINE CAPITAL - Partners' Capital and Mezzanine Capital and Schedule of Units (Details) link:calculationLink link:presentationLink link:definitionLink 100850 - Disclosure - PARTNERS' CAPITAL AND MEZZANINE CAPITAL - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100860 - Disclosure - PARTNERS' CAPITAL AND MEZZANINE CAPITAL - Incentive Distribution Rights (Details) link:calculationLink link:presentationLink link:definitionLink 100870 - Disclosure - PARTNERS' CAPITAL AND MEZZANINE CAPITAL - Cash Distributions Paid and Declared (Details) link:calculationLink link:presentationLink link:definitionLink 100880 - Disclosure - EARNINGS PER UNIT (Details) link:calculationLink link:presentationLink link:definitionLink 100890 - Disclosure - UNIT-BASED AND NONCASH COMPENSATION - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100900 - Disclosure - UNIT-BASED AND NONCASH COMPENSATION - SMLP Long-Term Incentive Plan (Details) link:calculationLink link:presentationLink link:definitionLink 100910 - Disclosure - UNIT-BASED AND NONCASH COMPENSATION - Schedule of Intrinsic Values (Details) link:calculationLink link:presentationLink link:definitionLink 100920 - Disclosure - UNIT-BASED AND NONCASH COMPENSATION - SMP Net Profits Interests (Details) link:calculationLink link:presentationLink link:definitionLink 100930 - Disclosure - RELATED-PARTY TRANSACTIONS - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100940 - Disclosure - RELATED-PARTY TRANSACTIONS - Expenses Incurred by the General Partner and Reimbursed (Details) link:calculationLink link:presentationLink link:definitionLink 100950 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 100960 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES - Schedule of Right of Use Assets and Lease Liabilities (Details) link:calculationLink link:presentationLink link:definitionLink 100970 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES - Schedule of Lease Cost and Other Information (Details) link:calculationLink link:presentationLink link:definitionLink 100980 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES - Rent Expense (Details) link:calculationLink link:presentationLink link:definitionLink 100990 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES - Future Minimum Lease Payments Due and Future Minimum Rentals to be Received under Noncancelable Leases (Details) link:calculationLink link:presentationLink link:definitionLink 101000 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES - Schedule of Future Minimum Rental Payments for Operating Leases (Details) link:calculationLink link:presentationLink link:definitionLink 101010 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES - Schedule of Future Payments Due Under Finance Leases (Details) link:calculationLink link:presentationLink link:definitionLink 101020 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES - Schedule of Future Payments Due Under Finance Leases (Details)2 link:calculationLink link:presentationLink link:definitionLink 101030 - Disclosure - LEASES, COMMITMENTS AND CONTINGENCIES - Environmental Matters (Details) link:calculationLink link:presentationLink link:definitionLink 101040 - Disclosure - DISPOSITIONS, DROP DOWN TRANSACTIONS AND RESTRUCTURING - Red Rock Gathering Asset Disposition (Details) link:calculationLink link:presentationLink link:definitionLink 101050 - Disclosure - DISPOSITIONS, DROP DOWN TRANSACTIONS AND RESTRUCTURING - Tioga Midstream Disposition (Details) link:calculationLink link:presentationLink link:definitionLink 101060 - Disclosure - DISPOSITIONS, DROP DOWN TRANSACTIONS AND RESTRUCTURING - 2016 Drop Down (Details) link:calculationLink link:presentationLink link:definitionLink 101070 - Disclosure - DISPOSITIONS, DROP DOWN TRANSACTIONS AND RESTRUCTURING - Restructuring Activities (Details) link:calculationLink link:presentationLink link:definitionLink 101080 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Narrative (Details) link:calculationLink link:presentationLink link:definitionLink 101090 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Balance Sheet (Details) link:calculationLink link:presentationLink link:definitionLink 101100 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Statement of Operations (Details) link:calculationLink link:presentationLink link:definitionLink 101110 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Cash Flow Statement (Details) link:calculationLink link:presentationLink link:definitionLink 101120 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Cash Flow Statement (Details)2 link:calculationLink link:presentationLink link:definitionLink 101130 - Disclosure - UNAUDITED QUARTERLY FINANCIAL DATA (Details) link:calculationLink link:presentationLink link:definitionLink