Note 5 - Accumulated Other Comprehensive Income (Details) - Reclassifications out of AOCI - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before income taxes	$ 31,882	$ 34,026	$ 45,208	$ 52,666
Provision for income taxes	(11,884)	(12,484)	(16,790)	(19,620)
Net income	19,998	21,542	28,418	33,046
Homebuilding [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest and other income	2,720	4,613	4,574	18,162
Income before income taxes	23,573	27,449	31,563	41,002
Financial Services [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before income taxes	8,309	6,577	13,645	11,664
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before income taxes	473	(169)	462	6,356
Provision for income taxes	(180)	65	(176)	(2,447)
Net income	293	(104)	286	3,909
Reclassification out of Accumulated Other Comprehensive Income [Member] | Homebuilding [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest and other income	137	(176)	125	6,361
Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial Services [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest and other income	$ 336	$ 7	$ 337	$ (5)