COMMITMENTS AND CONTINGENCIES Legal Settlement (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2013	Dec. 31, 2012
Legal Settlements [Line Items]
Litigation Settlement, Expense		$ 0.8
Loss Contingency Accrual, Carrying Value, Provision	2.3
Loss Contingency, Damages Sought, Value	3.5
State
Legal Settlements [Line Items]
Payments for Legal Settlements		0.6
Federal Government [Member]
Legal Settlements [Line Items]
Payments for Legal Settlements		$ 4.4

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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+ Details