UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 3,366	$ 1,430
Accounts receivable	68,811	72,301
Other current assets	3,535	4,327
Total current assets	75,712	78,058
Property, plant and equipment, net	1,858,312	1,795,129
Intangible assets, net	293,771	301,345
Goodwill	16,211	16,211
Investment in equity method investees	682,227	690,485
Other noncurrent assets	13,153	13,565
Total assets	2,939,386	2,894,793
Current liabilities:
Trade accounts payable	21,232	16,375
Accrued expenses	13,971	12,499
Due to affiliate	443	1,088
Deferred revenue	10,159	4,000
Ad valorem taxes payable	3,834	8,329
Accrued interest	15,383	12,310
Accrued environmental remediation	3,068	3,130
Other current liabilities	5,984	11,258
Total current liabilities	74,074	68,989
Long-term debt	1,091,602	1,051,192
Deferred Purchase Price Obligation	384,617	362,959
Noncurrent deferred revenue	36,587	12,707
Noncurrent accrued environmental remediation	1,916	2,214
Other noncurrent liabilities	6,509	7,063
Total liabilities	1,595,305	1,505,124
Commitments and contingencies (Note 16)
Series A Preferred Units (300,000 units issued and outstanding at March 31, 2018 and December 31, 2017)	300,741	294,426
Common limited partner capital (73,355,775 units issued and outstanding at March 31, 2018 and 73,085,996 units issued and outstanding at December 31, 2017)	1,005,409	1,056,510
General Partner interests (1,490,999 units issued and outstanding at March 31, 2018 and December 31, 2017)	27,033	27,920
Noncontrolling interest	10,898	10,813
Total partners' capital	1,344,081	1,389,669
Total liabilities and partners' capital	$ 2,939,386	$ 2,894,793

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.