VARIABLE INTEREST ENTITIES RSO Cash Flow Detail (Parenthetical) (Details) (RSO [Member], USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from dividend reinvestment and stock purchase plan, offering costs	$ 0	$ 19
Common Stock [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Offering costs on stock issuance	0	4,265
Redeemable Preferred Stock Series A [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Offering costs on stock issuance	167	0
Preferred stock, coupon authorized	8.50%
Redeemable Preferred Stock Series B [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Offering costs on stock issuance	525	707
Preferred stock, coupon authorized	8.25%
Redeemable Preferred Stock Series C [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Offering costs on stock issuance	$ 4,186	$ 0
Preferred stock, coupon authorized	8.625%