CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 118,862	$ 87,912
Accounts receivable, net of allowance for doubtful accounts of $8,473 and $7,808 as of December 31, 2015 and 2014, respectively	145,064	208,314
Receivable from related parties	0	164
Inventories	38,749	55,713
Other current assets	31,176	35,944
Assets held for sale	0	1,100
Total current assets	333,851	389,147
Property, plant and equipment, at cost	5,209,160	4,815,396
Accumulated depreciation and amortization	(1,525,589)	(1,354,664)
Property, plant and equipment, net	3,683,571	3,460,732
Intangible assets, net	112,011	58,670
Goodwill	696,637	617,429
Investment in joint venture	0	74,223
Deferred income tax asset	2,858	4,429
Other long-term assets, net	320,334	314,166
Total assets	5,149,262	4,918,796
Current liabilities:
Accounts payable	125,147	162,056
Payable to related party	14,799	15,128
Short-term debt	84,000	77,000
Accrued interest payable	34,286	33,345
Accrued liabilities	55,194	61,025
Taxes other than income tax	12,810	14,121
Income tax payable	5,977	2,517
Total current liabilities	332,213	365,192
Long-term debt	3,079,349	2,749,452
Long-term payable to related party	32,080	33,537
Deferred income tax liability	24,810	27,308
Other long-term liabilities	$ 70,966	$ 27,097
Commitments and contingencies (Note 15)
Partners' equity:
Limited partners (77,886,078 common units outstanding as of December 31, 2015 and 2014)	$ 1,661,900	$ 1,744,810
General partner	36,738	39,312
Accumulated other comprehensive loss	(88,794)	(67,912)
Total partners' equity	1,609,844	1,716,210
Total liabilities and partners' equity	$ 5,149,262	$ 4,918,796

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.