Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income (loss)	$ 31,897	$ 2,812	$ (132,072)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net unrealized (gain) loss related to derivative instruments	1,196	(14,114)	(13,339)
Depreciation and amortization	48,646	51,189	70,882
(Gain) loss on disposal or impairment of long-lived assets, net	(6,621)	9,497	105,050
Equity earnings from investments	(36,036)	(15,004)	(1,949)
Distributions from equity investments	36,440	15,004	1,949
Amortization and write down of debt issuance costs	2,425	30,338	23,601
Deferred tax benefit	(11,818)	(9,847)	(13,719)
Non-cash compensation expense	6,503	8,641	6,230
(Gain) loss on fair value of warrants	21,310	(5,012)	283
Provision for uncollectible accounts receivable, net of recoveries	(315)	(7,421)	10,613
Currency (gain) loss	298	(3,450)	2,901
Changes in operating assets and liabilities (Note 22)	(14,283)	11,408	62,137
Net cash provided by operating activities	79,642	74,041	122,567
Cash flows from investing activities:
Capital expenditures	(119,319)	(65,995)	(48,468)
Proceeds from sale of long-lived assets	2,641	1,125	24,497
Investments in non-consolidated subsidiaries	(78,253)	(3,717)	(867)
Proceeds from sale of non-consolidated affiliate	3,500	0	140,765
Proceeds from the sale of SemStream assets	12,250	93,054	0
Distributions in excess of equity in earnings of affiliates	17,290	12,455	3,819
Deconsolidation of subsidiaries (Note 6)	0	0	(5,519)
Proceeds from surrender of life insurance	0	0	7,016
Net cash provided by (used in) investing activities	(161,891)	36,922	121,243
Cash flows from financing activities:
Debt issuance costs	(707)	(12,533)	(1,958)
Borrowings on debt and other obligations	318,000	263,905	159,213
Principal payments on debt and other obligations	(222,066)	(503,189)	(348,734)
Distributions to noncontrolling interests	(8,502)	0	(277)
Repurchase of common stock	(242)	0	0
Net proceeds from sale of limited partner interests in Rose Rock Midstream, L.P.	0	127,134	0
Net cash provided by (used in) financing activities	86,483	(124,683)	(191,756)
Effect of exchange rate changes on cash and cash equivalents	(610)	(34)	(3,812)
Change in cash and cash equivalents	3,624	(13,754)	48,242
Change in cash and cash equivalents included in discontinued operations	2,792	(454)	1,387
Change in cash and cash equivalents from continuing operations	6,416	(14,208)	49,629
Cash and cash equivalents at beginning of period	73,613	87,821	38,192
Cash and cash equivalents at end of period	$ 80,029	$ 73,613	$ 87,821