FAIR VALUE DISCLOSURES (Detail Textuals) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2012 Revolving credit facility	Dec. 31, 2011 Revolving credit facility	Dec. 31, 2008 Interest Rate Swap
Line of Credit Facility [Line Items]
Outstanding borrowings under the facility	$ 83.7	$ 83.7	$ 203.3
Aggregate principal amount of fixed-rate debt				$ 50