Note 15 - Senior Notes (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Schedule of Debt [Table Text Block]

	June 30,		December 31,
	2019		2018
	(Dollars in thousands)
5⅝% Senior Notes due February 2020, net	$	249,371	$	248,850
5½% Senior Notes due January 2024, net		248,895		248,789
6% Senior Notes due January 2043, net		490,417		490,328
Total	$	988,683	$	987,967