CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ 42,629	$ (14,545)
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	49,736	43,150
Long-lived asset impairment	2,465	28,927
Amortization of deferred financing costs	1,738	741
Amortization of debt discount	146
Amortization of terminated interest rate swaps	767	614
Interest rate swaps	152
Unit-based compensation expense	588	485
Provision for (benefit from) doubtful accounts	(226)	545
Gain on sale of property, plant and equipment	(8,184)	(418)
Changes in assets and liabilities:
Accounts receivable, trade	(13,649)	(9,912)
Other liabilities	3,021	(3,271)
Net cash provided by operating activities	79,183	46,316
Cash flows from investing activities:
Capital expenditures	(74,486)	(51,455)
Payment to Exterran Holdings for a portion of the contract operations acquisitions		(77,415)
Proceeds from sale of property, plant and equipment	47,956	1,003
Decrease in amounts due from affiliates, net		1,184
Net cash used in investing activities	(26,530)	(126,683)
Cash flows from financing activities:
Proceeds from borrowings of long-term debt	842,536	609,000
Repayments of long-term debt	(808,500)	(616,350)
Distributions to unitholders	(50,929)	(42,060)
Net proceeds from issuance of common units		114,530
Net proceeds from sale of general partner units		2,426
Payments for debt issuance costs	(11,929)	(549)
Payments for settlement of interest rate swaps that include financing elements	(314)
Purchases of treasury units	(91)	(165)
Capital contribution from limited partners and general partner	9,454	14,126
Decrease in amounts due to affiliates, net	(21,372)
Net cash provided by (used in) financing activities	(41,145)	80,958
Net increase in cash and cash equivalents	11,508	591
Cash and cash equivalents at beginning of period	142	5
Cash and cash equivalents at end of period	11,650	596
Supplemental disclosure of cash flow information:
Non-cash capital contribution from limited and general partner	15,149	8,885
Contract operations equipment acquired/exchanged, net	150,734	57,615
Intangible assets allocated in contract operations acquisitions	3,131	5,005
Debt assumed in contract operations acquisitions		105,350
Non-cash capital distribution due to the contract operations acquisitions	12,350	28,221
Common units issued in contract operations acquisitions	170,537
General partner units issued in contract operations acquisitions	$ 3,463