CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 103,019	$ 118,862
Accounts receivable, net of allowance for doubtful accounts of $7,826 and $8,473 as of June 30, 2016 and December 31, 2015, respectively	145,340	145,064
Receivable from related party	186	0
Inventories	38,700	38,749
Other current assets	25,913	31,176
Total current assets	313,158	333,851
Property, plant and equipment, at cost	5,294,602	5,209,160
Accumulated depreciation and amortization	(1,620,230)	(1,525,589)
Property, plant and equipment, net	3,674,372	3,683,571
Intangible assets, net	105,091	112,011
Goodwill	696,637	696,637
Deferred income tax asset	2,193	2,858
Other long-term assets, net	263,768	296,597
Total assets	5,055,219	5,125,525
Current liabilities:
Accounts payable	96,807	125,147
Payable to related party	0	14,799
Short-term debt	0	84,000
Accrued interest payable	33,893	34,286
Accrued liabilities	47,777	55,194
Taxes other than income tax	12,613	12,810
Income tax payable	3,186	5,977
Total current liabilities	194,276	332,213
Long-term debt	3,205,693	3,055,612
Long-term payable to related party	0	32,080
Deferred income tax liability	26,485	24,810
Other long-term liabilities	138,870	70,966
Commitments and contingencies (Note 4)
Partners' equity:
Limited partners (77,886,316 and 77,886,078 common units outstanding as of June 30, 2016 and December 31, 2015, respectively)	1,582,224	1,661,900
General partner	34,582	36,738
Accumulated other comprehensive loss	(126,911)	(88,794)
Total partners' equity	1,489,895	1,609,844
Total liabilities and partners' equity	$ 5,055,219	$ 5,125,525

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.