Note 19 - Commitments and Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Note 19 - Commitments and Contingencies (Details) [Line Items]
Operating Leases, Future Minimum Payments Receivable, Current	$ 825.8
Operating Leases, Future Minimum Payments Receivable, in Two Years	741.4
Operating Leases, Future Minimum Payments Receivable, in Three Years	636.7
Operating Leases, Future Minimum Payments Receivable, in Four Years	541.5
Operating Leases, Future Minimum Payments Receivable, in Five Years	446.2
Operating Leases, Future Minimum Payments Receivable, Thereafter	1,955.2
Straight Line Rent	14.8	$ 8.4	$ 4.8
Operating Leases, Future Minimum Payments Due, Next Twelve Months	12.7
Operating Leases, Future Minimum Payments, Due in Two Years	12.3
Operating Leases, Future Minimum Payments, Due in Three Years	12.0
Operating Leases, Future Minimum Payments, Due in Four Years	11.2
Operating Leases, Future Minimum Payments, Due in Five Years	10.7
Operating Leases, Future Minimum Payments, Due Thereafter	$ 193.6
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	3.62%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	4.97%
Letters of Credit Outstanding, Amount	$ 25.6
Performance and Surety Bonds	$ 25.4
Rental Revenue [Member] | Product Concentration Risk [Member]
Note 19 - Commitments and Contingencies (Details) [Line Items]
Concentration Risk, Percentage	98.00%	98.00%	98.00%
Minimum [Member]
Note 19 - Commitments and Contingencies (Details) [Line Items]
Lessor Leasing Arrangements, Operating Leases, Term of Contract	5 years
Maximum [Member]
Note 19 - Commitments and Contingencies (Details) [Line Items]
Lessor Leasing Arrangements, Operating Leases, Term of Contract	25 years