Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 65,856	$ 74,216
Accounts receivable (net of allowance of $2,561 and $2,322, respectively)	477,046	418,339
Due from Affiliate, Current	12,926	25,455
Inventories	102,405	99,234
Other current assets	14,537	18,630
Total current assets	672,770	635,874
Property, plant and equipment (net of accumulated depreciation of $416,406 and $393,635, respectively)	1,834,400	1,762,072
Equity method investments	432,389	434,289
Goodwill	34,644	34,230
Other intangible assets (net of accumulated amortization of $42,606 and $39,018, respectively)	148,350	150,978
Other noncurrent assets	54,173	57,529
Total assets	3,176,726	3,074,972
Current liabilities:
Accounts payable	417,586	367,307
Payable to affiliates	17,086	26,508
Accrued liabilities	87,368	81,104
Deferred Revenue, Current	10,438	10,571
Other current liabilities	3,317	2,839
Long-term Debt and Capital Lease Obligations, Current	27	26
Total current liabilities	535,822	488,355
Long-term debt, net	1,140,637	1,050,918
Deferred income taxes	59,921	64,501
Other noncurrent liabilities	26,001	25,233
Commitments and contingencies (Note 8)
SemGroup owners’ equity:
Common stock, $0.01 par value (authorized - 100,000 shares; issued - 67,244 and 67,079 shares, respectively)	660	659
Additional paid-in capital	1,533,232	1,561,695
Treasury stock, at cost (1,007 and 980 shares, respectively)	(7,605)	(6,558)
Accumulated deficit	(44,061)	(35,917)
Accumulated other comprehensive loss	(67,881)	(73,914)
Total SemGroup Corporation owners’ equity	1,414,345	1,445,965
Total liabilities and owners’ equity	$ 3,176,726	$ 3,074,972

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.