PROPERTY, PLANT, AND EQUIPMENT, NET (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule of property, plant, and equipment, net

Estimates of useful lives follow.

	Useful lives (In years)
Gathering and processing systems and related equipment	30
Other	4-15

Details on property, plant, and equipment follow.

	December 31,
	2015		2014
	(In thousands)
Gathering and processing systems and related equipment	$	1,883,139	$	1,630,250
Construction in progress	75,132		48,500
Land and line fill	11,055		11,057
Other	32,427		58,375
Total	2,001,753		1,748,182
Less accumulated depreciation	188,970		125,542
Property, plant, and equipment, net	$	1,812,783	$	1,622,640

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,
	2015		2014		2013
	(In thousands)
Long-lived asset impairment:
Williston Basin	$	7,554	$	—	$	—
Barnett Shale	531		5,505		—
Piceance/DJ Basins	1,220		—		—

Schedule of depreciation expense and capitalized interest

Depreciation expense and capitalized interest follow.

	Year ended December 31,
	2015		2014		2013
	(In thousands)
Depreciation expense	$	63,915	$	53,064	$	37,947
Capitalized interest	3,372		4,646		6,690