Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2011	Dec. 31, 2010
OTHER ASSETS:
Amortization of deferred financing costs	$ 408	$ 1,237
SHAREHOLDERS' EQUITY:
Preferred stock, shares authorized	10,000,000	10,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	129,983,781	74,863,135
Common stock, shares outstanding	129,516,860	74,863,135
Treasury stock, shares	761,652	761,652
Shares of unearned common stock in KSOP	153,300	153,300
Series C Cumulative Perpetual Preferred Stock
REDEEMABLE PREFERRED STOCK:
Preferred stock, shares authorized	4,000,000	4,000,000
Preferred stock, shares issued	4,000,000	2,809,456
Preferred stock, shares outstanding	4,000,000	2,809,456
Preferred stock, liquidation preference	$ 25.00	$ 25.00
Cumulative dividend rate for Series C Cumulative Perpetual Preferred Stock	10.25%	10.25%
Series D Cumulative Perpetual Preferred Stock
SHAREHOLDERS' EQUITY:
Preferred stock, shares authorized	5,750,000	5,750,000
Cumulative dividend rate for Series D Cumulative Perpetual Preferred Stock	8.00%	8.00%
Preferred stock, shares issued	1,421,237
Preferred stock, shares outstanding	1,421,237
Preferred stock, liquidation preference	$ 50.00	$ 50.00
Exchangeable common stock
SHAREHOLDERS' EQUITY:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares issued	3,778,245
Common stock, shares outstanding	3,778,245