|
Note 9 - Fair Value of Financial Instruments (Details) (USD $)
In Millions, unless otherwise specified
|
3 Months Ended |
|
Mar. 31, 2015
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| Note 9 - Fair Value of Financial Instruments (Details) [Line Items] |
|
| Mortgage Loans on Real Estate, Minimum Interest Rate in Range |
2.80% |
| Mortgage Loans on Real Estate, Maximum Interest Rate in Range |
3.40% |
| Mortgage Loans on Real Estate, Interest Rate |
2.90% |
| Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net |
$ 2.1 |
| Mortgages [Member] | Fair Value, Inputs, Level 3 [Member] |
|
| Note 9 - Fair Value of Financial Instruments (Details) [Line Items] |
|
| Notes Payable, Fair Value Disclosure |
93.7 |
| Fair Value, Inputs, Level 2 [Member] | Senior Notes 2024 [Member] |
|
| Note 9 - Fair Value of Financial Instruments (Details) [Line Items] |
|
| Long-term Debt, Fair Value |
253.8 |
| Fair Value, Inputs, Level 2 [Member] | Senior Notes 2023 [Member] |
|
| Note 9 - Fair Value of Financial Instruments (Details) [Line Items] |
|
| Long-term Debt, Fair Value |
$ 273.1 |