Note 21 - Supplemental Guarantor Information - Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues	$ 1,515,843	$ 1,670,958	$ 4,474,656	$ 4,435,003
Cost of sales	(1,212,708)	(1,296,266)	(3,572,819)	(3,471,766)
Gross margin	303,135	374,692	901,837	963,237
Selling, general and administrative expenses	(168,429)	(170,815)	(498,702)	(473,210)
Income (loss) from unconsolidated joint ventures	5,426	1,231	9,760	2,643
Equity income of subsidiaries
Interest income (expense), net
Other income (expense)	(1,238)	(4,169)	(4,082)	(11,992)
Homebuilding pretax income	138,894	200,939	408,813	480,678
Financial services pretax income	7,278	9,807	23,475	24,889
Income before taxes	146,172	210,746	432,288	505,567
Provision for income taxes	(52,820)	(78,398)	(157,322)	(187,798)
Net income	93,352	132,348	274,966	317,769
Reportable Legal Entities [Member] | Parent Company [Member]
Revenues	647,336	707,397	1,955,915	1,817,935
Cost of sales	(528,858)	(561,856)	(1,592,317)	(1,451,579)
Gross margin	118,478	145,541	363,598	366,356
Selling, general and administrative expenses	(68,237)	(75,217)	(203,674)	(201,503)
Income (loss) from unconsolidated joint ventures	981	(717)	2,006	29
Equity income of subsidiaries	62,765	95,380	178,762	229,414
Interest income (expense), net	845	1,075	2,439	3,685
Other income (expense)	(3,714)	(3,602)	(9,612)	(10,885)
Homebuilding pretax income	111,118	162,460	333,519	387,096
Financial services pretax income
Income before taxes	111,118	162,460	333,519	387,096
Provision for income taxes	(17,766)	(30,112)	(58,553)	(69,327)
Net income	93,352	132,348	274,966	317,769
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Revenues	632,262	656,095	1,835,567	1,866,598
Cost of sales	(505,367)	(520,810)	(1,468,154)	(1,486,644)
Gross margin	126,895	135,285	367,413	379,954
Selling, general and administrative expenses	(80,147)	(75,834)	(237,232)	(220,595)
Income (loss) from unconsolidated joint ventures	252	44	550	444
Equity income of subsidiaries
Interest income (expense), net	(519)	(886)	(1,724)	(2,785)
Other income (expense)	(287)	(762)	(543)	(1,241)
Homebuilding pretax income	46,194	57,847	128,464	155,777
Financial services pretax income
Income before taxes	46,194	57,847	128,464	155,777
Provision for income taxes	(22,788)	(23,111)	(61,411)	(66,659)
Net income	23,406	34,736	67,053	89,118
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Revenues	236,245	307,466	683,174	750,470
Cost of sales	(178,483)	(213,600)	(512,348)	(533,543)
Gross margin	57,762	93,866	170,826	216,927
Selling, general and administrative expenses	(20,045)	(19,764)	(57,796)	(51,112)
Income (loss) from unconsolidated joint ventures	4,193	1,904	7,204	2,170
Equity income of subsidiaries
Interest income (expense), net	(326)	(189)	(715)	(900)
Other income (expense)	2,763	195	6,073	134
Homebuilding pretax income	44,347	76,012	125,592	167,219
Financial services pretax income	7,278	9,807	23,475	24,889
Income before taxes	51,625	85,819	149,067	192,108
Provision for income taxes	(12,266)	(25,175)	(37,358)	(51,812)
Net income	39,359	60,644	111,709	140,296
Consolidation, Eliminations [Member]
Revenues
Cost of sales
Gross margin
Selling, general and administrative expenses
Income (loss) from unconsolidated joint ventures
Equity income of subsidiaries	(62,765)	(95,380)	(178,762)	(229,414)
Interest income (expense), net
Other income (expense)
Homebuilding pretax income	(62,765)	(95,380)	(178,762)	(229,414)
Financial services pretax income
Income before taxes	(62,765)	(95,380)	(178,762)	(229,414)
Provision for income taxes
Net income	$ (62,765)	$ (95,380)	$ (178,762)	$ (229,414)