Note 7 - Interest Expense, Net - Components of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest related to sale of tax benefits	$ 2,565	$ 2,375	$ 6,269	$ 7,062
Interest expense	15,726	16,510	47,214	50,430
Less — amount capitalized	(1,154)	(1,137)	(1,922)	(3,057)
Interest Expense	$ 17,137	$ 17,748	$ 51,561	$ 54,435