Supplemental Guarantor Information Supplemental Guarantor Information - Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
ASSETS:
Cash, cash equivalents and restricted cash	$ 21,184	$ 6,083	$ 41,931	$ 21,529
Mortgage loans held for sale	156,208	155,244
Inventory	1,822,531	1,769,507
Property and equipment - net	21,046	22,118
Investment in joint venture arrangements	40,306	37,885
Operating lease right-of-use assets	20,075	18,415
Deferred income tax asset	9,540	9,631
Investment in subsidiaries	0	0
Intercompany assets	0	0
Goodwill	16,400	16,400
Other assets	91,673	70,311
Total assets	2,198,963	2,105,594
LIABILITIES:
Accounts payable	150,256	125,026
Customer deposits	45,099	34,462
Operating lease liabilities	20,075	18,415
Intercompany liabilities	0	0
Other liabilities	117,942	147,937
Community development district obligations	12,914	13,531
Obligation for consolidated inventory not owned	14,284	7,934
Notes payable bank - homebuilding operations	6,900	66,000
Notes payable bank - financial service operations	145,055	136,904
Notes payable - other	7,546	5,828
Senior notes due 2021 - net	0	298,988
Senior notes due 2025 - net	247,222	247,092
Senior notes due 2028 - net	393,989	0
TOTAL LIABILITIES	1,161,282	1,102,117
TOTAL SHAREHOLDERS' EQUITY	1,037,681	1,003,477
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	2,198,963	2,105,594
Consolidation, Eliminations [Member]
ASSETS:
Cash, cash equivalents and restricted cash	(2,158)	(5,725)	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	0
Deferred income tax asset	0	0
Investment in subsidiaries	(959,789)	(928,942)
Intercompany assets	(717,921)	(619,204)
Goodwill	0	0
Other assets	0	0
Total assets	(1,679,868)	(1,553,871)
LIABILITIES:
Accounts payable	(2,158)	(5,725)
Customer deposits	0	0
Operating lease liabilities	0	0
Intercompany liabilities	(717,921)	(619,204)
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
Senior notes due 2025 - net	0	0
Senior notes due 2028 - net	0
TOTAL LIABILITIES	(720,079)	(624,929)
TOTAL SHAREHOLDERS' EQUITY	(959,789)	(928,942)
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	(1,679,868)	(1,553,871)
Parent Company [Member]
ASSETS:
Cash, cash equivalents and restricted cash	0	0	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	0
Deferred income tax asset	0	0
Investment in subsidiaries	959,789	928,942
Intercompany assets	717,921	619,204
Goodwill	0	0
Other assets	1,182	1,411
Total assets	1,678,892	1,549,557
LIABILITIES:
Accounts payable	0	0
Customer deposits	0	0
Operating lease liabilities	0	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		298,988
Senior notes due 2025 - net	247,222	247,092
Senior notes due 2028 - net	393,989
TOTAL LIABILITIES	641,211	546,080
TOTAL SHAREHOLDERS' EQUITY	1,037,681	1,003,477
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,678,892	1,549,557
Guarantor Subsidiaries [Member]
ASSETS:
Cash, cash equivalents and restricted cash	486	219	26,882	5,554
Mortgage loans held for sale	0	0
Inventory	1,822,531	1,769,507
Property and equipment - net	20,372	21,372
Investment in joint venture arrangements	38,077	35,391
Operating lease right-of-use assets	16,700	15,689
Deferred income tax asset	9,540	9,631
Investment in subsidiaries	0	0
Intercompany assets	0	0
Goodwill	16,400	16,400
Other assets	71,741	56,134
Total assets	1,995,847	1,924,343
LIABILITIES:
Accounts payable	151,591	130,136
Customer deposits	45,099	34,462
Operating lease liabilities	16,700	15,691
Intercompany liabilities	715,527	618,946
Other liabilities	107,214	141,015
Community development district obligations	12,914	13,531
Obligation for consolidated inventory not owned	14,284	7,934
Notes payable bank - homebuilding operations	6,900	66,000
Notes payable bank - financial service operations	0	0
Notes payable - other	7,546	5,828
Senior notes due 2021 - net		0
Senior notes due 2025 - net	0	0
Senior notes due 2028 - net	0
TOTAL LIABILITIES	1,077,775	1,033,543
TOTAL SHAREHOLDERS' EQUITY	918,072	890,800
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,995,847	1,924,343
Non-Guarantor Subsidiaries [Member]
ASSETS:
Cash, cash equivalents and restricted cash	22,856	11,589	$ 15,049	$ 15,975
Mortgage loans held for sale	156,208	155,244
Inventory	0	0
Property and equipment - net	674	746
Investment in joint venture arrangements	2,229	2,494
Operating lease right-of-use assets	3,375	2,726
Deferred income tax asset	0	0
Investment in subsidiaries	0	0
Intercompany assets	0	0
Goodwill	0	0
Other assets	18,750	12,766
Total assets	204,092	185,565
LIABILITIES:
Accounts payable	823	615
Customer deposits	0	0
Operating lease liabilities	3,375	2,724
Intercompany liabilities	2,394	258
Other liabilities	10,728	6,922
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	145,055	136,904
Notes payable - other	0	0
Senior notes due 2021 - net		0
Senior notes due 2025 - net	0	0
Senior notes due 2028 - net	0
TOTAL LIABILITIES	162,375	147,423
TOTAL SHAREHOLDERS' EQUITY	41,717	38,142
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 204,092	$ 185,565