Note 7 - Interest Expense, Net (Details) - Components of Interest Expense (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Components of Interest Expense [Abstract]
Interest related to sale of tax benefits	$ 3,669	$ 3,037	$ 6,248	$ 5,754
Other interest expense	18,838	16,166	37,229	32,009
Less — amount capitalized	(435)	(1,699)	(887)	(4,396)
	$ 22,072	$ 17,504	$ 42,590	$ 33,367