Hurricane and Insurance Related Matters - Additional Information (Detail) (USD $)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Insurance coverage income	$ 3,000,000	$ 6,500,000
Pretax income from the insurer final cash settlement		12,718,000
Meraux Refinery
Insurance coverage income		15,398,000
North America
Insurance coverage income		4,500,000
Corporate
Insurance coverage income		$ 2,000,000

The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Name:	us-gaap_InsuranceRecoveries
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration