Note 13 - Mortgages Payable (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended			12 Months Ended				12 Months Ended
	Aug. 31, 2010	Dec. 31, 2013	Dec. 31, 2013 Acquisitions [Member] Mortgages [Member]	Dec. 31, 2012 Acquisitions [Member] Mortgages [Member]	Dec. 31, 2012 Transfers [Member] Mortgages [Member]	Dec. 31, 2012 Transfers [Member]	Dec. 31, 2013 Repayment of Debt [Member] Mortgages [Member]	Dec. 31, 2012 Repayment of Debt [Member] Mortgages [Member]	Dec. 31, 2013 Mortgages [Member]	Dec. 31, 2012 Mortgages [Member]
Note 13 - Mortgages Payable (Details) [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities									$ 284.9	$ 185.3
Number of Real Estate Properties			9	7			14	19
Unamortized Fair Value Adjustments During Period									5.8	6.1
Repayments of Secured Debt	150.0								256.3	284.8
Mortgage Loans on Real Estate, Period Increase (Decrease)									36.0
Mortgage Loans on Real Estate, Number of Loans		16				5
Noncash or Part Noncash Divestiture, Amount of Consideration Received					17.1
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Minimum									0.14%
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum									9.75%
Debt, Weighted Average Interest Rate									5.88%
Unamortized FairValue Debt Adjustments									10.7
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months									143.5
Long-term Debt, Maturities, Repayments of Principal in Year Two									176.2
Long-term Debt, Maturities, Repayments of Principal in Year Three									291.2
Long-term Debt, Maturities, Repayments of Principal in Year Five									178.0
Long-term Debt, Maturities, Repayments of Principal in Year Four									54.9
Long-term Debt, Maturities, Repayments of Principal after Year Five									$ 180.9