FINANCIAL INSTRUMENTS (Details 2) (Cash Flow Hedges, USD $) In Millions			3 Months Ended	6 Months Ended
Jun. 30, 2011 Interest rate swaps Recurring Level 2	Dec. 31, 2010 Interest rate swaps Recurring Level 2	Jun. 30, 2011 Interest rate swaps and options	Jun. 30, 2010 Interest rate swaps and options	Jun. 30, 2011 Interest rate swaps and options	Jun. 30, 2010 Interest rate swaps and options
Derivative Financial Instruments
Fair value of derivative contracts, current liability	$ (6.9)	$ (13.8)
Interest expense on the interest rate swaps and options			$ 3.5	$ 4.1	$ 7.4	$ 8.3

Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 10
-Subparagraph i
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 6
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 15
-Paragraph 83
-URI http://asc.fasb.org/extlink&oid=6913464&loc=d3e34841-113949

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant