INCOME TAXES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
INCOME TAXES
Statutory federal tax rate (as a percent)	35.00%
State tax, low end of range of rate (as a percent)	6.00%
State tax, high end of range of rate (as a percent)	6.50%
Effective tax benefit rate (as a percent)	19.40%	36.50%
Increase in valuation allowance	$ 4.7
Refund of federal and state taxes paid in prior years (in dollars)	2.1
State and foreign income taxes paid (in dollars)	$ 0.2