CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 1,430	$ 7,428
Accounts receivable	72,301	97,364
Other current assets	4,327	4,309
Total current assets	78,058	109,101
Property, plant and equipment, net	1,795,129	1,853,671
Intangible assets, net	301,345	421,452
Goodwill	16,211	16,211
Investment in equity method investees	690,485	707,415
Other noncurrent assets	13,565	7,329
Total assets	2,894,793	3,115,179
Current liabilities:
Trade accounts payable	16,375	16,251
Accrued expenses	12,499	11,389
Due to affiliate	1,088	258
Deferred revenue	4,000	0
Ad valorem taxes payable	8,329	10,588
Accrued interest	12,310	17,483
Accrued environmental remediation	3,130	4,301
Other current liabilities	11,258	11,471
Total current liabilities	68,989	71,741
Long-term debt	1,051,192	1,240,301
Deferred Purchase Price Obligation	362,959	563,281
Deferred revenue	12,707	57,465
Noncurrent accrued environmental remediation	2,214	5,152
Other noncurrent liabilities	7,063	7,566
Total liabilities	1,505,124	1,945,506
Commitments and contingencies (Note 15)
Series A Preferred Units (300 units issued and outstanding at December 31, 2017)	294,426
Common limited partner capital (73,086 units issued and outstanding at December 31, 2017 and 72,111 units issued and outstanding at December 31, 2016)	1,056,510	1,129,132
General Partner interests (1,491 units issued and outstanding at December 31, 2017 and 1,471 units issued and outstanding at December 31, 2016)	27,920	29,294
Noncontrolling interest	10,813	11,247
Total partners' capital	1,389,669	1,169,673
Total liabilities and partners' capital	$ 2,894,793	$ 3,115,179

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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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.