Note 11 - Senior Notes (Tables)

3 Months Ended

Mar. 31, 2018

Senior Notes [Abstract]

Schedule of Senior Notes [Table Text Block]

The carrying value of our senior notes at March 31, 2018 and December 31, 2017 was as follows:

(In thousands)		March 31, 2018		December 31, 2017
5.500%	Senior Notes due 2019	$	157,804	$	157,636
5.250%	Senior Notes due 2020	232,053		231,834
7.000%	Senior Notes due 2021	195,322		195,146
4.500%	Senior Notes due 2024	442,696		442,458
	Total Senior Notes	$	1,027,875	$	1,027,074