Note 20 - Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Owned	$ 6,654,990	$ 6,438,792
Assets	8,866,796	8,709,044
Total liabilities	4,620,426	4,501,458
Total Stockholders' Equity	4,235,706	4,207,586
Stockholders' Equity Attributable to Noncontrolling Interest	10,664
Total Equity	4,246,370	4,207,586
Total Liabilities and Equity	8,866,796	8,709,044
Cash and Cash Equivalents, at Carrying Value	215,694	208,127	$ 287,870	$ 186,594
Reportable Legal Entities [Member] | Parent Company [Member]
Assets	8,707,514	8,438,528
Total liabilities	4,471,808	4,230,942
Total Stockholders' Equity	4,235,706
Stockholders' Equity Attributable to Noncontrolling Interest
Total Equity	4,235,706	4,207,586
Total Liabilities and Equity	8,707,514	8,438,528
Cash and Cash Equivalents, at Carrying Value	41,081	105,261	128,263	6,387
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Assets	2,388,415	2,390,295
Total liabilities	1,335,430	1,380,957
Total Stockholders' Equity	1,052,985
Stockholders' Equity Attributable to Noncontrolling Interest
Total Equity	1,052,985	1,009,338
Total Liabilities and Equity	2,388,415	2,390,295
Cash and Cash Equivalents, at Carrying Value	31,168	38,211	58,593	112,852
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Assets	2,287,685	2,223,782
Total liabilities	1,260,801	1,278,702
Total Stockholders' Equity	1,016,220
Stockholders' Equity Attributable to Noncontrolling Interest	10,664
Total Equity	1,026,884	945,080
Total Liabilities and Equity	2,287,685	2,223,782
Cash and Cash Equivalents, at Carrying Value	143,445	64,655	101,014	67,355
Consolidation, Eliminations [Member]
Assets	(4,516,818)	(4,343,561)
Total liabilities	(2,447,613)	(2,389,143)
Total Stockholders' Equity	(2,069,205)
Stockholders' Equity Attributable to Noncontrolling Interest
Total Equity	(2,069,205)	(1,954,418)
Total Liabilities and Equity	(4,516,818)	(4,343,561)
Cash and Cash Equivalents, at Carrying Value
Homebuilding [Member]
Intercompany receivables
Owned	6,654,990	6,438,792
Not owned	86,618	66,267
Homebuilding investments in unconsolidated joint ventures	125,768	127,127
Investments in subsidiaries
Deferred income taxes, net	312,471	330,378
Goodwill	985,185	970,185
Other assets	233,785	204,489
Assets	8,599,017	8,356,645
Accounts payable	146,383	211,780
Accrued liabilities and intercompany payables	542,568	599,905
Secured Debt	27,041	27,579
Senior notes payable	3,735,232	3,392,208
Total liabilities	4,451,224	4,231,472
Cash and Cash Equivalents, at Carrying Value	167,833	191,086
Restricted Cash and Cash Equivalents	32,367	28,321
Homebuilding [Member] | Reportable Legal Entities [Member] | Parent Company [Member]
Intercompany receivables	2,118,245	2,045,773
Owned	2,970,751	2,825,234
Not owned	42,190	30,953
Homebuilding investments in unconsolidated joint ventures	4,889	4,469
Investments in subsidiaries	2,069,205	1,954,418
Deferred income taxes, net	319,114	337,021
Goodwill	970,185	970,185
Other assets	171,854	165,214
Assets	8,707,514	8,438,528
Accounts payable	67,733	92,611
Accrued liabilities and intercompany payables	323,820	387,098
Secured Debt	345,023	359,025
Senior notes payable	3,735,232	3,392,208
Total liabilities	4,471,808	4,230,942
Cash and Cash Equivalents, at Carrying Value	41,081	105,261
Restricted Cash and Cash Equivalents
Homebuilding [Member] | Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Intercompany receivables
Owned	2,278,861	2,277,840
Not owned	32,927	32,596
Homebuilding investments in unconsolidated joint ventures	4,228	4,923
Investments in subsidiaries
Deferred income taxes, net
Goodwill
Other assets	41,231	36,725
Assets	2,388,415	2,390,295
Accounts payable	58,565	78,729
Accrued liabilities and intercompany payables	1,276,865	1,302,228
Secured Debt
Senior notes payable
Total liabilities	1,335,430	1,380,957
Cash and Cash Equivalents, at Carrying Value	31,168	38,211
Restricted Cash and Cash Equivalents
Homebuilding [Member] | Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Intercompany receivables	320,924	334,926
Owned	1,405,378	1,335,718
Not owned	11,501	2,718
Homebuilding investments in unconsolidated joint ventures	116,651	117,735
Investments in subsidiaries
Deferred income taxes, net
Goodwill	15,000
Other assets	20,700	2,550
Assets	2,018,105	1,869,582
Accounts payable	20,085	40,440
Accrued liabilities and intercompany payables	1,068,572	964,796
Secured Debt	2,942	3,480
Senior notes payable
Total liabilities	1,091,599	1,008,716
Cash and Cash Equivalents, at Carrying Value	95,584	47,614
Restricted Cash and Cash Equivalents	32,367	28,321
Homebuilding [Member] | Consolidation, Eliminations [Member]
Intercompany receivables	(2,439,169)	(2,380,699)
Owned
Not owned
Homebuilding investments in unconsolidated joint ventures
Investments in subsidiaries	(2,069,205)	(1,954,418)
Deferred income taxes, net	(6,643)	(6,643)
Goodwill
Other assets
Assets	(4,515,017)	(4,341,760)
Accounts payable
Accrued liabilities and intercompany payables	(2,126,689)	(2,054,217)
Secured Debt	(320,924)	(334,926)
Senior notes payable
Total liabilities	(2,447,613)	(2,389,143)
Cash and Cash Equivalents, at Carrying Value
Restricted Cash and Cash Equivalents
Financial Services [Member]
Mortgage loans held for sale, net	155,180	262,058
Mortgage loans held for investment, net	25,613	24,924
Other assets	17,750	26,666
Assets	267,779	352,399
Accounts payable and other liabilities	19,374	22,559
Warehouse Agreement Borrowings	149,828	247,427
Total liabilities	169,202	269,986
Cash and Cash Equivalents, at Carrying Value	47,861	17,041
Restricted Cash and Cash Equivalents	21,375	21,710
Financial Services [Member] | Reportable Legal Entities [Member] | Parent Company [Member]
Mortgage loans held for sale, net
Mortgage loans held for investment, net
Other assets
Assets
Accounts payable and other liabilities
Warehouse Agreement Borrowings
Total liabilities
Cash and Cash Equivalents, at Carrying Value
Restricted Cash and Cash Equivalents
Financial Services [Member] | Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Mortgage loans held for sale, net
Mortgage loans held for investment, net
Other assets
Assets
Accounts payable and other liabilities
Warehouse Agreement Borrowings
Total liabilities
Cash and Cash Equivalents, at Carrying Value
Restricted Cash and Cash Equivalents
Financial Services [Member] | Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Mortgage loans held for sale, net	155,180	262,058
Mortgage loans held for investment, net	25,613	24,924
Other assets	19,551	28,467
Assets	269,580	354,200
Accounts payable and other liabilities	19,374	22,559
Warehouse Agreement Borrowings	149,828	247,427
Total liabilities	169,202	269,986
Cash and Cash Equivalents, at Carrying Value	47,861	17,041
Restricted Cash and Cash Equivalents	21,375	21,710
Financial Services [Member] | Consolidation, Eliminations [Member]
Mortgage loans held for sale, net
Mortgage loans held for investment, net
Other assets	(1,801)	(1,801)
Assets	(1,801)	(1,801)
Accounts payable and other liabilities
Warehouse Agreement Borrowings
Total liabilities
Cash and Cash Equivalents, at Carrying Value
Restricted Cash and Cash Equivalents