Property, Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, plant and equipment
Property, plant and equipment	$ 8,583,767	$ 5,542,316
Less: accumulated depreciation	(890,598)	(602,698)
Total property, plant and equipment, net	7,693,169	4,939,618
Natural gas gathering and NGL transportation pipelines and facilities
Property, plant and equipment
Property, plant and equipment	4,290,918	2,712,572
Processing plants
Property, plant and equipment
Property, plant and equipment	1,879,184	894,282
Fractionation and storage facilities
Property, plant and equipment
Property, plant and equipment	220,344	207,169
Crude oil pipelines
Property, plant and equipment
Property, plant and equipment	16,730	16,730
Land, building, office equipment and other
Property, plant and equipment
Property, plant and equipment	710,737	376,014
Construction in progress
Property, plant and equipment
Property, plant and equipment	$ 1,465,854	$ 1,335,549