Note 7 - Interest Expense, Net (Tables)

9 Months Ended

Sep. 30, 2014

Interest Expense Disclosure [Abstract]

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
	(Dollars in thousands)						(Dollars in thousands)
Interest related to sale of tax benefits	$	3,430		$	3,479		$	9,678		$	9,233
Other interest expense		19,910			16,811			57,139			48,820
Less — amount capitalized		(846	)		(1,831	)		(1,733	)		(6,227	)
	$	22,494		$	18,459		$	65,084		$	51,826