REVENUE (Tables)

9 Months Ended

Sep. 30, 2018

Revenue From Contract With Customer [Abstract]

Schedule of Estimated Revenue Expected to be Recognized and MVC Shortfall Payments

The following table presents estimated revenue expected to be recognized during the remainder of 2018 and over the remaining contract period related to performance obligations that are unsatisfied and are comprised of estimated MVC shortfall payments.

We applied the practical expedient in paragraph 606-10-50-14 of Topic 606 for certain arrangements that we consider optional purchases (i.e., there is no enforceable obligation for the customer to make purchases) and those amounts are excluded from the table.

	2018		2019		2020		2021		2022		Thereafter
	(In thousands)
Gathering services and related fees	$	84,164	$	127,743	$	122,429	$	102,777	$	83,648	$	174,825

Schedule of Disaggregated Revenue by Geographic Area and Major Products and Services Reportable Segments

Revenue by Category.  In the following table, revenue is disaggregated by geographic area and major products and services. For more detailed information about reportable segments, see Note 4.

	Reportable Segments
	Three months ended September 30, 2018
	Utica Shale		Williston Basin		Piceance / DJ Basins		Barnett Shale		Marcellus Shale		Total reportable segments		All other segments			Total
	(In thousands)
Major products/services     lines
Gathering services and     related fees	$	7,974	$	18,020	$	36,743	$	18,318	$	7,150	$	88,205	$	(1,778	)	$	86,427
Natural gas, NGLs and     condensate sales		—		7,953		3,650		789		—		12,392		21,625			34,017
Other revenues		—		3,037		2,072		1,913		—		7,022		13			7,035
Total	$	7,974	$	29,010	$	42,465	$	21,020	$	7,150	$	107,619	$	19,860		$	127,479

	Reportable Segments
	Nine months ended September 30, 2018
	Utica Shale		Williston Basin		Piceance / DJ Basins		Barnett Shale		Marcellus Shale		Total reportable segments		All other segments			Total
	(In thousands)
Major products/services     lines
Gathering services and     related fees	$	28,437	$	58,792	$	108,207	$	46,035	$	23,025	$	264,496	$	(4,123	)	$	260,373
Natural gas, NGLs and     condensate sales		—		23,149		12,650		1,715		—		37,514		54,511			92,025
Other revenues		—		8,909		6,187		5,595		—		20,691		(107	)		20,584
Total	$	28,437	$	90,850	$	127,044	$	53,345	$	23,025	$	322,701	$	50,281		$	372,982

Schedule of Information about Contract Assets from Contracts with Customers

The following table provides information about contract assets from contracts with customers:

	September 30, 2018
	(In thousands)
Contract assets, December 31, 2017	$	—
Net impact of Topic 606 day 1 adoption		3,514
Additions		14,906
Transfers out		(7,169	)
Contract assets, September 30, 2018	$	11,251