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DEFERRED PHANTOM STOCK COMPENSATION (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
DEFERRED PHANTOM STOCK COMPENSATION
Deferred compensation expense	$ 0	$ 0	$ 3.1
Unpaid balance of deferred compensation	$ 1.3	$ 2.3

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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- Definition

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

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