Note 18 - Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Note 18 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit)	$ 32,324	$ 35,383	$ 49,215	$ 58,839
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	89,522	$ 91,846	138,018	$ 153,461
Deferred Tax Assets, Gross	267,200		267,200
Deferred Tax Assets, Valuation Allowance	1,100		1,100
Deferred Tax Assets, Operating Loss Carryforwards	127,700		127,700
Gross Annual Deduction Limitation on Net Operating Loss Carryforwards	15,600		15,600
Deferred Tax Assets, Other	139,500		139,500
Unrecognized Tax Benefits	3,800		3,800		$ 2,500
Subject to Federal and State Net Operating Loss Carryforward Limitations [Member]
Note 18 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	112,600		112,600
Not Limited by Section 382 [Member]
Note 18 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards	$ 15,100		$ 15,100