Note 5 - Accumulated Other Comprehensive Income (Details) - Reclassifications out of AOCI (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before income taxes	$ 34,026	$ 38,012	$ 52,666	$ 60,598
Benefit from (provision for) income taxes	(12,484)	186,897	(19,620)	186,827
Net income	21,542	224,909	33,046	247,425
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member] | Homebuilding [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Homebuilding interest and other income	(176)	1,166	6,361	871
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member] | Financial Services [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Financial services interest and other income	7	49	(5)	30
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before income taxes	(169)	1,215	6,356	901
Benefit from (provision for) income taxes	65		(2,447)
Net income	(104)	1,215	3,909	901
Homebuilding [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Homebuilding interest and other income	4,613	10,200	18,162	16,749
Income before income taxes	27,449	29,789	41,002	44,636
Financial Services [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Financial services interest and other income	701	920	1,489	1,795
Income before income taxes	$ 6,577	$ 8,223	$ 11,664	$ 15,962