Note 18 - Supplemental Guarantor Information - Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended								11 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 13, 2014	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Homebuilding revenues									$ 2,411,178	$ 6,388,040		$ 3,496,411		$ 2,411,178
Cost of sales									(1,792,795)	(4,997,410)		(2,719,940)		(1,792,795)
Homebuilding gross margin	$ 427,393	$ 374,692	$ 341,357	$ 247,188	$ 330,669	$ 159,756	$ 171,941	$ 114,105	618,383	1,390,630	[1]	776,471	[1]	618,383
Selling, general and administrative expenses									(275,861)	(664,459)		(390,710)		(275,861)
Homebuilding income (loss) from unconsolidated joint ventures									(668)	4,057		1,966		(668)
Equity income of subsidiaries
Interest income (expense), net
Other income (expense)									(1,733)	(16,726)		(62,177)		(1,733)
Homebuilding pretax income									340,121	713,502		325,550		340,121
Financial services pretax income									9,843	39,614		16,939		9,843
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									349,964	753,116		342,489		349,964
(Provision) benefit for income taxes									(134,099)	(268,386)		(128,980)		(134,099)
Net income	$ 166,961	$ 132,348	$ 112,760	$ 72,661	$ 77,529	$ 47,177	$ 57,198	$ 31,605	$ 215,865	484,730	[1]	213,509	[1]	215,865
Consolidation, Eliminations [Member]
Homebuilding revenues												(26,722)
Cost of sales												26,722
Homebuilding gross margin
Selling, general and administrative expenses
Homebuilding income (loss) from unconsolidated joint ventures
Equity income of subsidiaries										(330,815)		(201,261)		(155,943)
Interest income (expense), net
Other income (expense)
Homebuilding pretax income										(330,815)		(201,261)		(155,943)
Financial services pretax income
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest										(330,815)		(201,261)		(155,943)
(Provision) benefit for income taxes
Net income										(330,815)		(201,261)		(155,943)
Parent Company [Member] | Reportable Legal Entities [Member]
Homebuilding revenues										2,674,122		1,234,750		813,423
Cost of sales										(2,131,342)		(989,834)		(599,911)
Homebuilding gross margin										542,780		244,916		213,512
Selling, general and administrative expenses										(278,972)		(145,458)		(101,020)
Homebuilding income (loss) from unconsolidated joint ventures										355		540		(71)
Equity income of subsidiaries										330,815		201,261		155,943
Interest income (expense), net										4,708		12,388		13,718
Other income (expense)										(15,238)		(57,629)		(3,954)
Homebuilding pretax income										584,448		256,018		278,128
Financial services pretax income
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest										584,448		256,018		278,128
(Provision) benefit for income taxes										(99,718)		(42,509)		(62,263)
Net income										484,730		213,509		215,865
Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Homebuilding revenues										2,629,329		1,500,676		1,025,404
Cost of sales										(2,099,621)		(1,194,605)		(779,578)
Homebuilding gross margin										529,708		306,071		245,826
Selling, general and administrative expenses										(310,492)		(185,779)		(131,068)
Homebuilding income (loss) from unconsolidated joint ventures										594		269		88
Equity income of subsidiaries
Interest income (expense), net										(3,578)		(9,374)		(11,497)
Other income (expense)										(2,064)		(2,678)		(469)
Homebuilding pretax income										214,168		108,509		102,880
Financial services pretax income
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest										214,168		108,509		102,880
(Provision) benefit for income taxes										(92,267)		(49,512)		(40,469)
Net income										121,901		58,997		62,411
Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Homebuilding revenues										1,084,589		787,707		572,351
Cost of sales										(766,447)		(562,223)		(413,306)
Homebuilding gross margin										318,142		225,484		159,045
Selling, general and administrative expenses										(74,995)		(59,473)		(43,773)
Homebuilding income (loss) from unconsolidated joint ventures										3,108		1,157		(685)
Equity income of subsidiaries
Interest income (expense), net										(1,130)		(3,014)		(2,221)
Other income (expense)										576		(1,870)		2,690
Homebuilding pretax income										245,701		162,284		115,056
Financial services pretax income										39,614		16,939		9,843
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest										285,315		179,223		124,899
(Provision) benefit for income taxes										(76,401)		(36,959)		(31,367)
Net income										$ 208,914		$ 142,264		$ 93,532

[1] Per share amounts do not add across due to rounding differences in quarterly amounts and due to the impact of differences between the quarterly and annual weighted average share calculations.