Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) $ in Millions	Dec. 31, 2015 USD ($)
Year 2016 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Above and below market leases amortization, net	$ 10.3
Year 2017 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Above and below market leases amortization, net	9.9
Year 2018 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Above and below market leases amortization, net	9.9
Year 2019 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Above and below market leases amortization, net	10.5
Year 2020 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Above and below market leases amortization, net	10.8
Leases in Place and Tenant Relationships [Member] \| Year 2016 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Tenant relationships and leases in place amortization	(53.1)
Leases in Place and Tenant Relationships [Member] \| Year 2017 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Tenant relationships and leases in place amortization	(39.0)
Leases in Place and Tenant Relationships [Member] \| Year 2018 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Tenant relationships and leases in place amortization	(28.5)
Leases in Place and Tenant Relationships [Member] \| Year 2019 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Tenant relationships and leases in place amortization	(22.1)
Leases in Place and Tenant Relationships [Member] \| Year 2020 [Member]
Note 2 - Real Estate (Details) - Estimated Net Amortization Income (Expense) [Line Items]
Tenant relationships and leases in place amortization	$ (16.3)

Amortization expense of above and below market leases for the next twelve months

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- Definition

Amortization expense of above and below market leases for year five

+ References

No definition available.

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Amortization expense of above and below market leases for year four

+ References

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- Definition

Amortization expense of above and below market leases for year three

+ References

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Amortization expense of above and below market leases in year two

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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