Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 16,859	$ 11,282
Accounts receivable-trade, net	364,080	270,925
Inventories	119,122	87,050
Other	24,008	34,777
Total current assets	524,069	404,034
FIXED ASSETS, at cost	1,155,977	723,225
Less: Accumulated depreciation	(186,640)	(157,944)
Net fixed assets	969,337	565,281
NET INVESTMENT IN DIRECT FINANCING LEASES, net of unearned income	153,300	157,385
EQUITY INVESTEES	605,067	549,235
INTANGIBLE ASSETS, net of amortization	65,753	75,065
GOODWILL	325,046	325,046
OTHER ASSETS, net of amortization	36,998	33,618
TOTAL ASSETS	2,679,570	2,109,664
CURRENT LIABILITIES:
Accounts payable-trade	340,531	258,053
Accrued liabilities	69,674	54,598
Total current liabilities	410,205	312,651
SENIOR SECURED CREDIT FACILITY	411,300	500,000
SENIOR UNSECURED NOTES	700,804	350,895
DEFERRED TAX LIABILITIES	13,625	13,810
OTHER LONG-TERM LIABILITIES	17,419	15,813
COMMITMENTS AND CONTINGENCIES (Note 14)
PARTNERS' CAPITAL:
Common unitholders, 81,202,752 units issued and outstanding at September 30, 2013 and December 31, 2012	1,126,217	916,495
TOTAL LIABILITIES AND PARTNERS' CAPITAL	$ 2,679,570	$ 2,109,664