Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Accrued straight-line rent (in Dollars)	$ 23,312	$ 18,630
Preferred Shares, par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred Shares, shares authorized	40,000,000	40,000,000
Preferred Shares, shares issued	4,100,000	4,100,000
Preferred Shares, shares outstanding	4,100,000	4,100,000
Preferred Shares, liquidation value (in Dollars)	$ 102,500	$ 102,500
Common Shares, par value (in Dollars per share)	$ 0.01	$ 0.01
Shares authorized (in shares)	225,000,000	450,000,000
Common Shares, shares issued	83,323,563	83,490,663
Common Shares, shares outstanding	83,323,563	83,490,663
KRG, LP [Member]
Accrued straight-line rent (in Dollars)	$ 23,312	$ 18,630
Preferred Shares, shares issued	4,100,000	4,100,000
Preferred Shares, shares outstanding	4,100,000	4,100,000
Preferred Shares, liquidation value (in Dollars)	$ 102,500	$ 102,500
Common Shares, shares issued	83,323,563	83,490,663
Common Shares, shares outstanding	83,323,563	83,490,663