Note 15 - Senior Notes Payable - Senior Notes Payable (Details) - Homebuilding [Member] - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
2016 Notes [Member]
Senior notes		$ 275,845
8.4% Senior Notes Due May 2017 [Member]
Senior notes	238,625	248,975
8.375% Senior Notes Due May 2018 [Member]
Senior notes	574,397	574,058
1.625% Convertible Senior Notes due May 2018 [Member]
Senior notes	219,396	301,754
0.25% Convertible Senior Notes Due June 2019 [Member]
Senior notes	252,357	248,098
6.625% Senior Notes due May 2020 [Member]
Senior notes	321,402	325,882
8.375% Senior Notes Due January 2021 [Member]
Senior notes	394,970	394,152
6.25% Senior Notes Due December 15, 2021 [Member]
Senior notes	297,504	297,148
5.375% Senior Notes Due October 2022 [Member]
Senior notes	249,197	249,096
5.875% Senior Notes Due November 2024 [Member]
Senior notes	296,886	296,598
5.25% Senior Notes due June 2026 [Member]
Senior notes	297,428
1.25% Convertible Senior Notes Due August 2032 [Member]
Senior notes	251,637	250,410
Senior notes	$ 3,393,799	$ 3,462,016