Note 2 - Long-term Debt (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
2014 Term Loan [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Long-term Debt, Gross	$ 556,400,000	$ 556,400,000
2020 Notes [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Unsecured Debt	675,000,000	675,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Debt Instrument, Interest Rate, Effective Percentage	7.30%
Deferred Finance Costs, Net	10,800,000	11,300,000
2014 Senior Credit Facility [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Long-term Debt, Gross	556,438,000	556,438,000
Debt Instrument, Interest Rate, Stated Percentage	3.80%	3.80%
Deferred Finance Costs, Net	$ 7,100,000	$ 7,400,000

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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