Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net loss	$ (59,491)	$ (70,992)	$ (40,373)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	13,042	11,620	12,694
Amortization of loan fees	109	0	0
Unit-based compensation expense	49	0	0
(Gain) loss on asset disposals	0	335	(26,687)
Accounts receivable - trade	66	19	65
Accounts receivable - affiliate	(11,431)	0	0
Prepaid expenses	(216)	(385)	139
Other assets	12	0	0
Accounts payable and accrued liabilities	7,610	2,072	559
Other long-term liabilities	1	0	0
Net cash used in operating activities	(50,249)	(57,331)	(53,603)
Cash flows from investing activities:
Capital expenditures	(60,985)	(25,725)	(3,931)
Proceeds from sale of assets	0	225	40,000
Net cash provided by (used in) investing activities	(60,985)	(25,500)	36,069
Cash flows from financing activities:
Proceeds from issuance of common units, net of underwriters' discount and commissions	325,263	0	0
Offering costs for issuance of common units	(2,117)	0	0
Distribution to general partner	(244,884)	0	0
Deferred financing costs	2,616	0	0
Contributions from affiliate	119,588	82,831	17,534
Net cash provided by financing activities	195,234	82,831	17,534
Net change in cash and cash equivalents	84,000	0	0
Cash and cash equivalents at beginning of year	0	0	0
Cash and cash equivalents at end of year	84,000	0	0
Supplemental Cash Flow Information [Abstract]
Contribution of property, plant and equipment from affiliate	146,513	0	0
Equity of Predecessor retained by affiliate	(34,829)
Underwriting discounts and commissions	(22,612)	0	0
Accrued capital expenditures	$ (1,026)	$ 1,036	$ 27