Consolidated Variable Interest Entities - Amounts Included in Consolidated Balance Sheets (Details) - Variable Interest Entity, Primary Beneficiary - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
EQGP and EQM | Cash and Cash Equivalents
Assets
Assets	$ 2,857	$ 60,453
EQGP and EQM | Accounts Receivable
Assets
Assets	28,804	20,662
EQGP and EQM | Prepaid Expenses and Other
Assets
Assets	8,470	5,745
EQGP and EQM | Property, Plant and Equipment
Assets
Assets	2,804,059	2,578,834
EQGP and EQM | Other Assets
Assets
Assets	483,004	206,104
EQGP and EQM | Accounts Payable
Liabilities
Liabilities	47,042	35,831
EQGP and EQM | Credit Facility Borrowings
Liabilities
Liabilities	180,000	0
EQGP and EQM | Other Current Liabilities
Liabilities
Liabilities	133,531	32,242
EQGP and EQM | Senior Notes
Liabilities
Liabilities	987,352	985,732
EQGP and EQM | Other Liabilities and Credits
Liabilities
Liabilities	20,273	$ 9,562
Rice Midstream Partners, LP | Cash and Cash Equivalents
Assets
Assets	10,538
Rice Midstream Partners, LP | Accounts Receivable
Assets
Assets	12,246
Rice Midstream Partners, LP | Other Current Assets
Assets
Assets	1,327
Rice Midstream Partners, LP | Property, Plant and Equipment
Assets
Assets	1,431,802
Rice Midstream Partners, LP | Goodwill
Assets
Assets	1,346,918
Rice Midstream Partners, LP | Accounts Payable
Liabilities
Liabilities	4
Rice Midstream Partners, LP | Credit Facility Borrowings
Liabilities
Liabilities	286,000
Rice Midstream Partners, LP | Other Current Liabilities
Liabilities
Liabilities	28,830
Rice Midstream Partners, LP | Other Liabilities and Credits
Liabilities
Liabilities	9,360
Strike Force Midstream LLC | Cash and Cash Equivalents
Assets
Assets	43,938
Strike Force Midstream LLC | Accounts Receivable
Assets
Assets	12,477
Strike Force Midstream LLC | Property, Plant and Equipment
Assets
Assets	356,346
Strike Force Midstream LLC | Intangible Assets
Assets
Assets	457,992
Strike Force Midstream LLC | Other Current Liabilities
Liabilities
Liabilities	$ 24,341