Note 10 - Debt (Details) - Summary of Interest Expense (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Summary of Interest Expense [Abstract]
Interest expense	$ 6,652	$ 7,840	$ 13,569	$ 17,022
Capitalized interest expense	(2,372)	(3,760)	(4,991)	(6,732)
Interest expense, net	$ 4,280	$ 4,080	$ 8,578	$ 10,290