Note 2 - Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
2014 Term Loan [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Long-term Debt, Gross	$ 556,400	$ 556,400
2020 Notes [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Unsecured Debt	$ 675,000	$ 675,000
Debt Instrument, Interest Rate, Stated Percentage	7.50%	7.50%
Debt Instrument, Interest Rate, Effective Percentage	7.30%	7.30%
Deferred Finance Costs, Net	$ 10,300	$ 11,300
2014 Senior Credit Facility [Member]
Note 2 - Long-term Debt (Details) [Line Items]
Long-term Debt, Gross	$ 556,438	$ 556,438
Debt Instrument, Interest Rate, Stated Percentage	3.80%	3.80%
Deferred Finance Costs, Net	$ 6,800	$ 7,400