Note 16 - Lines of Credit and Total Debt Obligations (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Debt [Table Text Block]

	December 31,
	2018		2017
	(Dollars in thousands)
$250 Million 5⅝% Senior Notes due February 2020, net	$	248,850	$	247,853
$250 Million 5½% Senior Notes due January 2024, net		248,789		248,585
$500 Million 6% Senior Notes due January 2043, net		490,328		490,159
Total	$	987,967	$	986,597