Note 12 - Income Taxes Income Tax Expense (Benefit) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current Federal Tax Expense (Benefit)	$ 0	$ 0	$ 0
Deferred Federal Income Tax Expense (Benefit)	29.6	30.9	13.6
Federal Income Tax Expense (Benefit), Continuing Operations	29.6	30.9	13.6
Current State and Local Tax Expense (Benefit)	(1.4)	4.1	0
Deferred State and Local Income Tax Expense (Benefit)	(2.5)	(9.8)	6.1
current and deferred state income tax expense	(3.9)	(5.7)	6.1
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	(4.8)	8.8	0.1
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions	0	1.0	0
INCOME TAX EXPENSE	$ 20.9	$ 33.0	$ 19.8