NOTES PAYABLE AND COMMERCIAL BANK FINANCING (Details) (USD $) In Millions, unless otherwise specified		1 Months Ended			3 Months Ended	1 Months Ended	3 Months Ended		3 Months Ended	1 Months Ended				1 Months Ended		1 Months Ended
	Oct. 12, 2012	Apr. 30, 2012 Term Loan A Freedom	Jan. 31, 2012 Term Loan B Four Points	Apr. 30, 2012 Term Loan B Freedom	Sep. 30, 2012 Revolver	Sep. 30, 2012 Term loan	Sep. 30, 2012 Term loan	Sep. 20, 2012 Term loan	Sep. 30, 2012 Term loan Scenario forecast	Sep. 30, 2012 Unsecured debt	Sep. 30, 2012 Unsecured debt Period prior to December 31, 2014	Sep. 30, 2012 Unsecured debt Period after December 31, 2014 through maturity of the agreement	Sep. 30, 2012 Notes	Oct. 31, 2012 Notes Subsequent Event	Oct. 12, 2012 Notes Subsequent Event	Oct. 31, 2012 Notes Subsequent Event Scenario forecast
Notes Payable And Commercial Bank Financing
Amount drawn on debt instrument		$ 157.5	$ 180.0	$ 192.5	$ 4.0									$ 500.0
Long-term debt balance					15.0
Borrowing capacity before the Amendment						300.0
Borrowing capacity								500.0
Permitted unsecured indebtedness before the Amendment										450.0
Permitted unsecured indebtedness										850.0
First Lien Indebtedness to EBITDA ratio before the Amendment										325.00%
First Lien Indebtedness to EBITDA ratio											375.00%	350.00%
Financing costs							5.5		7.8
Deferred financing costs						$ 2.3	$ 2.3						$ 9.1
Percentage of par value at which debt was issued															100.00%
Debt instrument, stated interest rate payable semi-annually (as a percent)	6.125%														6.125%
Redemption price of the debt instrument (as a percent)																100.00%
Maximum percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from certain equity offerings on or prior to October 1, 2015																35.00%