Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2011

Supplemental Cash Flow Information

Information regarding supplemental cash flow information

	Six months ended June 30,
	2011		2010
Supplemental disclosures of cash flow information:
Cash paid for interest, net of amounts capitalized	$	57,820	$	49,541
Cash paid for income taxes, net of refunds	514		4,690
Supplemental schedule of non-cash investing and financing activities:
Accrued property, plant and equipment	$	58,429	$	56,578
Interest capitalized on construction in progress	199		2,705
Issuance of common units for vesting of share-based payment awards	5,282		7,030