Supplemental Guarantor Information Supplemental Guarantor Information - Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Mar. 31, 2018
ASSETS:
Cash, cash equivalents and restricted cash	$ 41,931		$ 21,529
Mortgage loans held for sale	119,665		169,651
Inventory	1,730,788		1,674,460
Property and equipment - net	28,392		29,395
Investment in joint venture arrangements	40,736		35,870
Operating lease right-of-use assets	20,603	$ 20,889	0
Deferred income tax asset	13,146		13,482
Investment in subsidiaries	0		0
Intercompany	0		0
Goodwill	16,400		16,400	$ 16,400
Other assets	60,117		60,794
TOTAL ASSETS	2,071,778		2,021,581
LIABILITIES:
Accounts payable	132,935		131,511
Customer deposits	36,336		32,055
Operating lease liabilities	20,603	$ 20,889	0
Intercompany liabilities	0		0
Other liabilities	109,169		150,051
Community development district obligations	11,728		12,392
Obligation for consolidated inventory not owned	15,920		19,308
Notes payable bank - homebuilding operations	218,800		117,400
Notes payable bank - financial service operations	104,026		153,168
Notes payable - other	5,937		5,938
Senior notes due 2021 - net	298,160		297,884
Senior notes due 2025 - net	246,702		246,571
TOTAL LIABILITIES	1,200,316		1,166,278
TOTAL SHAREHOLDERS' EQUITY	871,462		855,303
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	2,071,778		2,021,581
Consolidation, Eliminations [Member]
ASSETS:
Cash, cash equivalents and restricted cash	0		0
Mortgage loans held for sale	0		0
Inventory	0		0
Property and equipment - net	0		0
Investment in joint venture arrangements	0		0
Operating lease right-of-use assets	0
Deferred income tax asset	0		0
Investment in subsidiaries	(831,528)		(817,986)
Intercompany	(582,698)		(579,447)
Goodwill	0		0
Other assets	0		0
TOTAL ASSETS	(1,414,226)		(1,397,433)
LIABILITIES:
Accounts payable	0		0
Customer deposits	0		0
Operating lease liabilities	0
Intercompany liabilities	(582,698)		(579,447)
Other liabilities	0		0
Community development district obligations	0		0
Obligation for consolidated inventory not owned	0		0
Notes payable bank - homebuilding operations	0		0
Notes payable bank - financial service operations	0		0
Notes payable - other	0		0
Senior notes due 2021 - net	0		0
Senior notes due 2025 - net	0		0
TOTAL LIABILITIES	(582,698)		(579,447)
TOTAL SHAREHOLDERS' EQUITY	(831,528)		(817,986)
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	(1,414,226)		(1,397,433)
Parent Company [Member]
ASSETS:
Cash, cash equivalents and restricted cash	0		0
Mortgage loans held for sale	0		0
Inventory	0		0
Property and equipment - net	0		0
Investment in joint venture arrangements	0		0
Operating lease right-of-use assets	0
Deferred income tax asset	0		0
Investment in subsidiaries	831,528		817,986
Intercompany	582,698		579,447
Goodwill	0		0
Other assets	2,098		2,325
TOTAL ASSETS	1,416,324		1,399,758
LIABILITIES:
Accounts payable	0		0
Customer deposits	0		0
Operating lease liabilities	0
Intercompany liabilities	0		0
Other liabilities	0		0
Community development district obligations	0		0
Obligation for consolidated inventory not owned	0		0
Notes payable bank - homebuilding operations	0		0
Notes payable bank - financial service operations	0		0
Notes payable - other	0		0
Senior notes due 2021 - net	298,160		297,884
Senior notes due 2025 - net	246,702		246,571
TOTAL LIABILITIES	544,862		544,455
TOTAL SHAREHOLDERS' EQUITY	871,462		855,303
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,416,324		1,399,758
Guarantor Subsidiaries [Member]
ASSETS:
Cash, cash equivalents and restricted cash	26,882		5,554
Mortgage loans held for sale	0		0
Inventory	1,730,788		1,674,460
Property and equipment - net	27,536		28,485
Investment in joint venture arrangements	38,209		33,297
Operating lease right-of-use assets	17,174
Deferred income tax asset	13,146		13,482
Investment in subsidiaries	0		0
Intercompany	0		0
Goodwill	16,400		16,400
Other assets	47,521		47,738
TOTAL ASSETS	1,917,656		1,819,416
LIABILITIES:
Accounts payable	132,645		131,089
Customer deposits	36,336		32,055
Operating lease liabilities	17,174
Intercompany liabilities	579,402		578,498
Other liabilities	103,768		140,860
Community development district obligations	11,728		12,392
Obligation for consolidated inventory not owned	15,920		19,308
Notes payable bank - homebuilding operations	218,800		117,400
Notes payable bank - financial service operations	0		0
Notes payable - other	5,937		5,938
Senior notes due 2021 - net	0		0
Senior notes due 2025 - net	0		0
TOTAL LIABILITIES	1,121,710		1,037,540
TOTAL SHAREHOLDERS' EQUITY	795,946		781,876
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,917,656		1,819,416
Non-Guarantor Subsidiaries [Member]
ASSETS:
Cash, cash equivalents and restricted cash	15,049		15,975
Mortgage loans held for sale	119,665		169,651
Inventory	0		0
Property and equipment - net	856		910
Investment in joint venture arrangements	2,527		2,573
Operating lease right-of-use assets	3,429
Deferred income tax asset	0		0
Investment in subsidiaries	0		0
Intercompany	0		0
Goodwill	0		0
Other assets	10,498		10,731
TOTAL ASSETS	152,024		199,840
LIABILITIES:
Accounts payable	290		422
Customer deposits	0		0
Operating lease liabilities	3,429
Intercompany liabilities	3,296		949
Other liabilities	5,401		9,191
Community development district obligations	0		0
Obligation for consolidated inventory not owned	0		0
Notes payable bank - homebuilding operations	0		0
Notes payable bank - financial service operations	104,026		153,168
Notes payable - other	0		0
Senior notes due 2021 - net	0		0
Senior notes due 2025 - net	0		0
TOTAL LIABILITIES	116,442		163,730
TOTAL SHAREHOLDERS' EQUITY	35,582		36,110
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 152,024		$ 199,840