CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS' CAPITAL (USD $) In Thousands, except Share data, unless otherwise specified	Partners' Capital Common Units	Partners' Capital General Partner Units	Treasury Units	Accumulated Other Comprehensive Loss	Total
Balance at Dec. 31, 2013	$ 578,493	$ 16,780	$ (1,165)	$ (2,353)	$ 591,755
Balance (in units) at Dec. 31, 2013	49,465,528	1,003,227
Balance (in units) at Dec. 31, 2013			(50,917)
Increase (Decrease) in Partners' Capital
Issuance of common units for vesting of phantom units (in units)	39,204
Treasury units purchased			(209)		(209)
Treasury units purchased (in units)			(6,850)
Contribution (distribution) of capital, net	7,564	254			7,818
Excess of purchase price of equipment over Exterran Holdings' cost of equipment	(3,835)	(196)			(4,031)
Cash distributions	(26,317)	(2,523)			(28,840)
Unit-based compensation expense	754				754
Interest rate swap loss, net of reclassification to earnings				(890)	(890)
Amortization of terminated interest rate swaps				935	935
Net income	4,335	2,604			6,939
Balance at Mar. 31, 2014	560,994	16,919	(1,374)	(2,308)	574,231
Balance (in units) at Mar. 31, 2014	49,504,732	1,003,227
Balance (in units) at Mar. 31, 2014			(57,767)
Balance at Dec. 31, 2014	668,714	19,542	(1,477)	(3,438)	683,341
Balance (in units) at Dec. 31, 2014	55,724,022	1,129,221
Balance (in units) at Dec. 31, 2014			(61,665)		(61,665)
Increase (Decrease) in Partners' Capital
Issuance of common units for vesting of phantom units (in units)	50,717
Treasury units purchased			(258)		(258)
Treasury units purchased (in units)			(10,376)
Contribution (distribution) of capital, net	(2,911)	(294)			(3,205)
Excess of purchase price of equipment over Exterran Holdings' cost of equipment	(4,226)	(243)			(4,469)
Cash distributions	(31,083)	(4,240)			(35,323)
Unit-based compensation expense	592				592
Interest rate swap loss, net of reclassification to earnings				(5,554)	(5,554)
Amortization of terminated interest rate swaps				826	826
Net income	15,876	4,209			20,085
Balance at Mar. 31, 2015	$ 646,962	$ 18,974	$ (1,735)	$ (8,166)	$ 656,035
Balance (in units) at Mar. 31, 2015	55,774,739	1,129,221
Balance (in units) at Mar. 31, 2015			(72,041)		(72,041)