PROPERTY, PLANT, AND EQUIPMENT, NET (Tables)

12 Months Ended

Dec. 31, 2016

Property Plant And Equipment [Abstract]

Schedule of property, plant, and equipment, net

Details on property, plant and equipment follow.

	December 31,
	2016		2015
	(In thousands)
Gathering and processing systems and related equipment	$	2,026,363	$	1,883,139
Construction in progress	39,954		75,132
Land and line fill	11,442		11,055
Other	35,227		32,427
Total	2,112,986		2,001,753
Less accumulated depreciation	259,315		188,970
Property, plant and equipment, net	$	1,853,671	$	1,812,783

Schedule of long-lived asset impairments

For the assets which had fair values below their carrying value, we recognized the following long-lived asset impairments, by segment.

	Year ended December 31,
	2016		2015		2014
	(In thousands)
Long-lived asset impairment:
Williston Basin	$	569	$	7,554	$	—
Piceance/DJ Basins	—		1,220		—
Barnett Shale	1,195		531		5,505

Schedule of depreciation expense and capitalized interest

Depreciation expense and capitalized interest follow.

	Year ended December 31,
	2016		2015		2014
	(In thousands)
Depreciation expense	$	70,770	$	63,915	$	53,064
Capitalized interest	3,709		3,372		4,646