Note 20 - Supplemental Guarantor Information - Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 156,248	$ 179,617	$ 286,116	$ 294,821
Provision for income taxes	(57,254)	(66,857)	(104,502)	(109,400)
Net income	98,994	112,760	181,614	185,421
Homebuilding revenues	1,621,114	1,578,362	2,958,813	2,764,045
Cost of sales	(1,297,256)	(1,237,005)	(2,360,111)	(2,175,500)
Gross margin	323,858	341,357	598,702	588,545
Selling, general and administrative expenses	(173,997)	(165,694)	(330,273)	(302,395)
Homebuilding income (loss) from unconsolidated joint ventures	446	223	4,334	1,412
Equity income of subsidiaries
Interest income (expense), net
Other income (expense)	(2,675)	(4,415)	(2,844)	(7,823)
Homebuilding pretax income	147,632	171,471	269,919	279,739
Financial services pretax income	8,616	8,146	16,197	15,082
Reportable Legal Entities [Member] | Parent Company [Member]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	123,980	138,212	222,401	224,636
Provision for income taxes	(24,986)	(25,452)	(40,787)	(39,215)
Net income	98,994	112,760	181,614	185,421
Homebuilding revenues	731,311	648,800	1,308,579	1,110,538
Cost of sales	(592,162)	(516,882)	(1,063,459)	(889,723)
Gross margin	139,149	131,918	245,120	220,815
Selling, general and administrative expenses	(70,729)	(71,235)	(135,437)	(126,286)
Homebuilding income (loss) from unconsolidated joint ventures	351	57	1,025	746
Equity income of subsidiaries	58,400	79,867	115,997	134,034
Interest income (expense), net	720	1,273	1,594	2,610
Other income (expense)	(3,911)	(3,668)	(5,898)	(7,283)
Homebuilding pretax income	123,980	138,212	222,401	224,636
Financial services pretax income
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	47,264	61,956	82,270	97,930
Provision for income taxes	(21,900)	(26,074)	(38,623)	(43,548)
Net income	25,364	35,882	43,647	54,382
Homebuilding revenues	662,781	676,049	1,203,305	1,210,503
Cost of sales	(531,235)	(535,832)	(962,787)	(965,834)
Gross margin	131,546	140,217	240,518	244,669
Selling, general and administrative expenses	(83,694)	(76,915)	(157,085)	(144,761)
Homebuilding income (loss) from unconsolidated joint ventures	165	256	298	400
Equity income of subsidiaries
Interest income (expense), net	(525)	(934)	(1,205)	(1,899)
Other income (expense)	(228)	(668)	(256)	(479)
Homebuilding pretax income	47,264	61,956	82,270	97,930
Financial services pretax income
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	43,404	59,316	97,442	106,289
Provision for income taxes	(10,368)	(15,331)	(25,092)	(26,637)
Net income	33,036	43,985	72,350	79,652
Homebuilding revenues	227,022	253,513	446,929	443,004
Cost of sales	(173,859)	(184,291)	(333,865)	(319,943)
Gross margin	53,163	69,222	113,064	123,061
Selling, general and administrative expenses	(19,574)	(17,544)	(37,751)	(31,348)
Homebuilding income (loss) from unconsolidated joint ventures	(70)	(90)	3,011	266
Equity income of subsidiaries
Interest income (expense), net	(195)	(339)	(389)	(711)
Other income (expense)	1,464	(79)	3,310	(61)
Homebuilding pretax income	34,788	51,170	81,245	91,207
Financial services pretax income	8,616	8,146	16,197	15,082
Consolidation, Eliminations [Member]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(58,400)	(79,867)	(115,997)	(134,034)
Provision for income taxes
Net income	(58,400)	(79,867)	(115,997)	(134,034)
Homebuilding revenues
Cost of sales
Gross margin
Selling, general and administrative expenses
Homebuilding income (loss) from unconsolidated joint ventures
Equity income of subsidiaries	(58,400)	(79,867)	(115,997)	(134,034)
Interest income (expense), net
Other income (expense)
Homebuilding pretax income	(58,400)	(79,867)	(115,997)	(134,034)
Financial services pretax income