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Note 7 - Fair Value Measurements (Details) (Senior Notes [Member], Fair Value, Measurements, Nonrecurring [Member], USD $) In Millions, unless otherwise specified	Jun. 30, 2014
Note 7 - Fair Value Measurements (Details) [Line Items]
Long-term Debt	$ 623.0
Estimate of Fair Value Measurement [Member]
Note 7 - Fair Value Measurements (Details) [Line Items]
Long-term Debt, Fair Value	$ 646.1

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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