Note 7 - Interest Expense, Net (Tables)

6 Months Ended

Jun. 30, 2013

Interest Expense Disclosure [Abstract]

Schedule of Other Nonoperating Expense, by Component [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
	(Dollars in thousands)						(Dollars in thousands)
Interest related to sale of tax benefits	$	3,037		$	1,723		$	5,754		$	3,560
Other interest expense		16,166			16,199			32,009			32,667
Less — amount capitalized		(1,699	)		(3,659	)		(4,396	)		(7,086	)
	$	17,504		$	14,263		$	33,367		$	29,141