CONSOLIDATED STATEMENTS OF PARTNERS' CAPITAL (USD $) In Thousands	Total	Accumulated Other Comprehensive Loss	Noncontrolling Interests	Limited Partners	Class B Units
Beginning balance at Dec. 31, 2010	$ 1,410,260	$ (21,259)	$ 17,855	$ 1,413,664
Net income	114,664		6,163	100,553	7,948
Acquisition of 80% interest in BORCO	276,508		276,508
Acquisition of remaining interest in BORCO	(278,211)		(278,211)
Distributions paid to unitholders	(335,730)		5,639	(341,369)
Issuance of units to First Reserve for BORCO acquisition	407,391			152,772	254,619
Issuance of units to Vopak for BORCO acquisition	96,110			36,041	60,069
Net proceeds from issuance of units	736,871			663,868	73,003
Amortization of unit-based compensation awards	9,233			9,233
Proceeds from exercise of unit options	3,567			3,567
Services Company's non-cash ESOP distributions	(1,407)		(1,407)
Distributions paid to noncontrolling interests	(8,872)		(8,872)
Other comprehensive income (loss)	(106,482)	(106,482)
Noncash accrual for distribution equivalent rights	(1,210)			(1,210)
Other	1,265		3,113	(1,848)
Ending balance at Dec. 31, 2011	2,323,957	(127,741)	20,788	2,035,271	395,639
Net income	230,551		4,134	208,752	17,665
Acquisition of additional interest in WesPac	(17,328)		(2,654)	(14,674)
Distributions paid to unitholders	(371,179)		4,998	(376,177)
Net proceeds from issuance of units	246,805			246,805
Amortization of unit-based compensation awards	19,520			19,520
Proceeds from exercise of unit options	1,067			1,067
Payment of tax withholding on issuance of LTIP awards	(2,604)			(2,604)
Distributions paid to noncontrolling interests	(10,707)		(10,707)
Other comprehensive income (loss)	(31,038)	(31,038)
Noncash accrual for distribution equivalent rights	(1,328)			(1,328)
Other	1,124		(32)	1,156
Ending balance at Dec. 31, 2012	2,388,840	(158,779)	16,527	2,117,788	413,304
Net income	164,425		4,152	143,554	16,719
Acquisition of additional interest in WesPac	(9,727)		(1,495)	(8,232)
Distributions paid to unitholders	(428,829)		3,679	(432,508)
Conversion of Class B Units to LP Units				430,023	(430,023)
Net proceeds from issuance of units	902,976			902,976
Amortization of unit-based compensation awards	21,781			21,781
Proceeds from exercise of unit options	1,277			1,277
Payment of tax withholding on issuance of LTIP awards	(5,034)			(5,034)
Distributions paid to noncontrolling interests	(7,850)		(7,850)
Other comprehensive income (loss)	55,227	55,227
Noncash accrual for distribution equivalent rights	(2,250)			(2,250)
Other			158	(158)
Ending balance at Dec. 31, 2013	$ 3,080,836	$ (103,552)	$ 15,171	$ 3,169,217