Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
CURRENT ASSETS:
Cash and cash equivalents	$ 10,817	$ 5,762
Accounts receivable - trade, net	237,989	171,550
Inventories	101,124	55,428
Other	26,174	19,798
Total current assets	376,104	252,538
FIXED ASSETS, at cost	541,138	373,339
Less: Accumulated depreciation	(124,213)	(108,283)
Net fixed assets	416,925	265,056
NET INVESTMENT IN DIRECT FINANCING LEASES, net of unearned income	162,460	168,438
EQUITY INVESTEES	326,947	343,434
INTANGIBLE ASSETS, net of amortization	93,356	120,175
GOODWILL	325,046	325,046
OTHER ASSETS, net of amortization	30,006	32,048
TOTAL ASSETS	1,730,844	1,506,735
CURRENT LIABILITIES:
Accounts payable-trade	199,357	165,978
Accrued liabilities	50,071	40,736
Total current liabilities	249,428	206,714
SENIOR SECURED CREDIT FACILITIES	409,300	360,000
SENIOR UNSECURED NOTES	250,000	250,000
DEFERRED TAX LIABILITIES	12,549	15,193
OTHER LONG-TERM LIABILITIES	16,929	5,564
COMMITMENTS AND CONTINGENCIES (Note 19)
PARTNERS' CAPITAL:
Common unitholders, 71,965 and 64,615 units issued and outstanding at December 31, 2011 and 2010, respectively	792,638	669,264
TOTAL LIABILITIES AND PARTNERS' CAPITAL	$ 1,730,844	$ 1,506,735