Description of Business and Basis of Presentation - Restatement Table - Consolidated Balance Sheet (details) - USD ($) $ in Thousands	Mar. 31, 2015	Dec. 31, 2014	[1]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accumulated depreciation	$ 1,368,045	$ 1,055,207
Net property, plant and equipment	4,446,869	4,571,443
Total assets	6,831,873	6,955,241
Accrued liabilities	171,217	170,864
Total current liabilities	241,957	241,058
Deferred income taxes	7,327	45,656
Total long-term liabilities	2,830,784	2,580,324
Total liabilities	3,072,741	2,821,382
Common units	1,156,508	1,260,195
Total partners' capital	1,156,508	1,382,704
Noncontrolling interests	2,602,624	2,751,155
Total equity and partners' capital	3,759,132	4,133,859	[2]
Total liabilities, equity and partners' capital	6,831,873	$ 6,955,241
As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accumulated depreciation	1,103,643
Net property, plant and equipment	4,711,271
Total assets	7,096,275
Accrued liabilities	171,786
Total current liabilities	242,526
Deferred income taxes	7,802
Total long-term liabilities	2,831,259
Total liabilities	3,073,785
Common units	1,252,921
Total partners' capital	1,252,921
Noncontrolling interests	2,769,569
Total equity and partners' capital	4,022,490
Total liabilities, equity and partners' capital	7,096,275
Adjustments [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accumulated depreciation	264,402
Net property, plant and equipment	(264,402)
Total assets	(264,402)
Accrued liabilities	(569)
Total current liabilities	(569)
Deferred income taxes	(475)
Total long-term liabilities	(475)
Total liabilities	(1,044)
Common units	(96,413)
Total partners' capital	(96,413)
Noncontrolling interests	(166,945)
Total equity and partners' capital	(263,358)
Total liabilities, equity and partners' capital	$ (264,402)

[1] Financial information has been recast to include the financial position and results attributable to the DBJV system. See Note 1 and Note 2.

[2] Financial information has been recast to include the financial position and results attributable to the DBJV system. See Note 1 and Note 2.