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Consolidated Variable Interest Entities - Balance Sheets (Details) - Variable Interest Entity, Primary Beneficiary - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
EQGP and EQM | Cash and cash equivalents |  |
Variable Interest Entity [Line Items] |  |
Assets | $ 6,062 | $ 2,857
EQGP and EQM | Accounts receivable |  |
Variable Interest Entity [Line Items] |  |
Assets | 58,358 | 28,804
EQGP and EQM | Prepaid expenses and other |  |
Variable Interest Entity [Line Items] |  |
Assets | 4,798 | 8,470
EQGP and EQM | Property, plant and equipment, net |  |
Variable Interest Entity [Line Items] |  |
Assets | 5,608,358 | 2,804,059
EQGP and EQM | Goodwill |  |
Variable Interest Entity [Line Items] |  |
Assets | 1,384,872 | 0
EQGP and EQM | Intangible assets, net |  |
Variable Interest Entity [Line Items] |  |
Assets | 586,500 | 0
EQGP and EQM | Investment in nonconsolidated entity |  |
Variable Interest Entity [Line Items] |  |
Assets | 1,300,430 | 460,546
EQGP and EQM | Other assets |  |
Variable Interest Entity [Line Items] |  |
Assets | 23,599 | 22,458
EQGP and EQM | Accounts payable |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 134,027 | 47,042
EQGP and EQM | Other current liabilities |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 526,299 | 133,531
EQGP and EQM | Credit facility borrowings |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 22,000 | 180,000
EQGP and EQM | Senior Notes |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 3,455,296 | 987,352
EQGP and EQM | Other liabilities and credits |  |
Variable Interest Entity [Line Items] |  |
Liabilities | $ 31,010 | 20,273
RMP | Cash and cash equivalents |  |
Variable Interest Entity [Line Items] |  |
Assets |  | 10,538
RMP | Accounts receivable |  |
Variable Interest Entity [Line Items] |  |
Assets |  | 12,246
RMP | Prepaid expenses and other |  |
Variable Interest Entity [Line Items] |  |
Assets |  | 1,327
RMP | Property, plant and equipment, net |  |
Variable Interest Entity [Line Items] |  |
Assets |  | 1,431,802
RMP | Goodwill |  |
Variable Interest Entity [Line Items] |  |
Assets |  | 1,346,918
RMP | Accounts payable |  |
Variable Interest Entity [Line Items] |  |
Liabilities |  | 24,634
RMP | Other current liabilities |  |
Variable Interest Entity [Line Items] |  |
Liabilities |  | 4,200
RMP | Credit facility borrowings |  |
Variable Interest Entity [Line Items] |  |
Liabilities |  | 286,000
RMP | Other liabilities and credits |  |
Variable Interest Entity [Line Items] |  |
Liabilities |  | $ 9,360

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- Definition The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5710-111685 + Details
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