Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	$ 3,462,016	$ 2,108,612
Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	3,462,016	2,108,612
7% Senior Notes [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes		29,771
10¾% Senior Notes [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	275,845	270,474
8.4% Senior Notes Due May 2017 [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	248,975
8⅜% Senior Notes [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	574,058	573,596
1.625% Convertible Senior Notes Due May 2018 [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	301,754
0.25% Convertible Senior Notes Due June 2019 [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	248,098
6.625% Senior Notes Due May 2020 [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	325,882
8⅜% Senior Notes [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	394,152	393,093
6¼% Senior Notes [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	297,148	296,673
5.375% Senior Notes Due October 2022 [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	249,096
5⅞% Senior Notes [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	296,598	296,230
1¼% Convertible Senior Notes Due August 2032 [Member] | Homebuilding [Member]
Note 8 - Homebuilding Indebtedness (Details) - Senior Notes Payable [Line Items]
Senior Notes	$ 250,410	$ 248,775