Note 17 - Interest Expense, Net (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	Year Ended December 31,
	2019			2018			2017
	(Dollars in thousands)
Interest related to sale of tax benefits	$	11,786		$	11,284		$	6,985
Interest expense		71,883			63,368			54,381
Less — amount capitalized		(3,285	)		(3,728	)		(7,224	)
	$	80,384		$	70,924		$	54,142