Senior Notes, Secured, and Unsecured Indebtedness - Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 45,709	$ 33,779	$ 50,473	$ 182,710
Receivables	15,417	13,502
Escrow proceeds receivable	2,659	0
Real estate inventories	2,303,536	2,333,207
Not owned	294,085	315,576
Investment in unconsolidated joint ventures	5,662	5,542
Goodwill	123,695	123,695
Intangibles, net	6,700	6,700
Deferred income taxes	46,900	47,241
Lease right-of-use assets	13,135	13,561
Other assets	37,515	36,971
Investments In Subsidiaries	0	0
Intercompany Receivable	0	0
Assets	2,895,013	2,929,774
LIABILITIES AND EQUITY
Accounts payable	108,506	128,371
Accrued expenses	96,715	150,155
Liabilities from inventories not owned	294,085	315,576
Notes payable	255,231	198,019
Total debt	1,375,506	1,321,345
Intercompany Payable	0	0
Liabilities	1,874,812	1,915,447
Equity
Stockholders' Equity Attributable to Parent	871,850	863,322
Noncontrolling interests	148,351	151,005
Total liabilities and equity	$ 2,895,013	2,929,774
5 3/4% Senior Notes due April 15, 2019
LIABILITIES AND EQUITY
Total debt		$ 0
Equity
Stated interest rate	5.75%	5.75%
7% Senior Notes due August 15, 2022
LIABILITIES AND EQUITY
Total debt	$ 347,639	$ 347,456
Equity
Stated interest rate	7.00%	7.00%
6% Senior Notes due September 1, 2023
LIABILITIES AND EQUITY
Total debt	$ 344,206	$ 343,878
Equity
Stated interest rate	6.00%
5 7/8% Senior Notes due January 31, 2025
LIABILITIES AND EQUITY
Total debt	$ 428,430	$ 431,992
Equity
Stated interest rate	5.875%	5.875%
Reporting Entities | Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	$ 1,915	$ 2,888	3,576	156
Receivables	5,304	4,151
Escrow proceeds receivable	0
Real estate inventories	1,140,340	1,152,786
Not owned	179,227	200,717
Investment in unconsolidated joint ventures	150	150
Goodwill	109,486	109,486
Intangibles, net	6,700	6,700
Deferred income taxes	0	0
Lease right-of-use assets	0	0
Other assets	8,952	9,688
Investments In Subsidiaries	(943,873)	(961,950)
Intercompany Receivable	294,625	285,675
Assets	802,826	810,291
LIABILITIES AND EQUITY
Accounts payable	30,492	34,546
Accrued expenses	12,156	26,967
Liabilities from inventories not owned	179,225	200,717
Notes payable	1,204	1,231
Intercompany Payable	0	0
Liabilities	223,077	263,461
Equity
Stockholders' Equity Attributable to Parent	579,749	546,830
Noncontrolling interests	0	0
Total liabilities and equity	802,826	810,291
Reporting Entities | Guarantor Subsidiaries | 5 3/4% Senior Notes due April 15, 2019
LIABILITIES AND EQUITY
Total debt
Reporting Entities | Guarantor Subsidiaries | 7% Senior Notes due August 15, 2022
LIABILITIES AND EQUITY
Total debt	0	0
Reporting Entities | Guarantor Subsidiaries | 6% Senior Notes due September 1, 2023
LIABILITIES AND EQUITY
Total debt	0	0
Reporting Entities | Guarantor Subsidiaries | 5 7/8% Senior Notes due January 31, 2025
LIABILITIES AND EQUITY
Total debt	0	0
Reporting Entities | Non-Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	9,852	9,441	7,400	11,120
Receivables	5,004	3,297
Escrow proceeds receivable	0
Real estate inventories	437,600	434,671
Not owned	0	0
Investment in unconsolidated joint ventures	0	0
Goodwill	0	0
Intangibles, net	0	0
Deferred income taxes	0	0
Lease right-of-use assets	0	0
Other assets	1,264	486
Investments In Subsidiaries	0	0
Intercompany Receivable	(160)	0
Assets	453,560	447,895
LIABILITIES AND EQUITY
Accounts payable	14,023	15,363
Accrued expenses	100	100
Liabilities from inventories not owned	0	0
Notes payable	144,026	151,788
Intercompany Payable	123,635	113,580
Liabilities	281,784	280,831
Equity
Stockholders' Equity Attributable to Parent	23,425	16,059
Noncontrolling interests	148,351	151,005
Total liabilities and equity	453,560	447,895
Reporting Entities | Non-Guarantor Subsidiaries | 5 3/4% Senior Notes due April 15, 2019
LIABILITIES AND EQUITY
Total debt
Reporting Entities | Non-Guarantor Subsidiaries | 7% Senior Notes due August 15, 2022
LIABILITIES AND EQUITY
Total debt	0	0
Reporting Entities | Non-Guarantor Subsidiaries | 6% Senior Notes due September 1, 2023
LIABILITIES AND EQUITY
Total debt	0	0
Reporting Entities | Non-Guarantor Subsidiaries | 5 7/8% Senior Notes due January 31, 2025
LIABILITIES AND EQUITY
Total debt	0	0
Reporting Entities | Parent
ASSETS
Real estate inventories		0
Not owned		0
Investment in unconsolidated joint ventures		0
Goodwill		0
Intangibles, net		0
Deferred income taxes		0
Lease right-of-use assets		0
Other assets		0
Investments In Subsidiaries		863,322
Intercompany Receivable		0
Assets		863,322
LIABILITIES AND EQUITY
Accounts payable		0
Accrued expenses		0
Liabilities from inventories not owned		0
Notes payable		0
Intercompany Payable		0
Liabilities		0
Equity
Stockholders' Equity Attributable to Parent		863,322
Noncontrolling interests		0
Total liabilities and equity		863,322
Reporting Entities | Parent | 5 3/4% Senior Notes due April 15, 2019
LIABILITIES AND EQUITY
Total debt		0
Reporting Entities | Parent | 7% Senior Notes due August 15, 2022
LIABILITIES AND EQUITY
Total debt		0
Reporting Entities | Parent | 6% Senior Notes due September 1, 2023
LIABILITIES AND EQUITY
Total debt		0
Reporting Entities | Parent | 5 7/8% Senior Notes due January 31, 2025
LIABILITIES AND EQUITY
Total debt		0
Reporting Entities | Subsidiary Issuer [Member]
ASSETS
Real estate inventories		745,750
Not owned		114,859
Investment in unconsolidated joint ventures		5,392
Goodwill		14,209
Intangibles, net		0
Deferred income taxes		47,241
Lease right-of-use assets		13,561
Other assets		26,797
Investments In Subsidiaries		16,059
Intercompany Receivable		0
Assets		1,011,372
LIABILITIES AND EQUITY
Accounts payable		78,462
Accrued expenses		123,088
Liabilities from inventories not owned		114,859
Notes payable		45,000
Intercompany Payable		172,095
Liabilities		1,656,830
Equity
Stockholders' Equity Attributable to Parent		(645,458)
Noncontrolling interests		0
Total liabilities and equity		1,011,372
Reporting Entities | Subsidiary Issuer [Member] | 5 3/4% Senior Notes due April 15, 2019
LIABILITIES AND EQUITY
Total debt
Reporting Entities | Subsidiary Issuer [Member] | 7% Senior Notes due August 15, 2022
LIABILITIES AND EQUITY
Total debt		347,456
Reporting Entities | Subsidiary Issuer [Member] | 6% Senior Notes due September 1, 2023
LIABILITIES AND EQUITY
Total debt		343,878
Reporting Entities | Subsidiary Issuer [Member] | 5 7/8% Senior Notes due January 31, 2025
LIABILITIES AND EQUITY
Total debt		431,992
Reporting Entities | Delaware Lyon
ASSETS
Cash and cash equivalents	0	0	0	0
Receivables	0	0
Escrow proceeds receivable	0
Real estate inventories	0
Not owned	0
Investment in unconsolidated joint ventures	0
Goodwill	0
Intangibles, net	0
Deferred income taxes	0
Lease right-of-use assets	0
Other assets	0
Investments In Subsidiaries	871,850
Intercompany Receivable	0
Assets	871,850
LIABILITIES AND EQUITY
Accounts payable	0
Accrued expenses	0
Liabilities from inventories not owned	0
Notes payable	0
Intercompany Payable	0
Liabilities	0
Equity
Stockholders' Equity Attributable to Parent	871,850
Noncontrolling interests	0
Total liabilities and equity	871,850
Reporting Entities | Delaware Lyon | 7% Senior Notes due August 15, 2022
LIABILITIES AND EQUITY
Total debt	0
Reporting Entities | Delaware Lyon | 6% Senior Notes due September 1, 2023
LIABILITIES AND EQUITY
Total debt	0
Reporting Entities | Delaware Lyon | 5 7/8% Senior Notes due January 31, 2025
LIABILITIES AND EQUITY
Total debt	0
Reporting Entities | California Lyon
ASSETS
Cash and cash equivalents	33,942	21,450	39,497	171,434
Receivables	5,109	6,054
Escrow proceeds receivable	2,659
Real estate inventories	725,596
Not owned	114,858
Investment in unconsolidated joint ventures	5,512
Goodwill	14,209
Intangibles, net	0
Deferred income taxes	46,900
Lease right-of-use assets	13,135
Other assets	27,299
Investments In Subsidiaries	23,425
Intercompany Receivable	0
Assets	1,012,644
LIABILITIES AND EQUITY
Accounts payable	63,991
Accrued expenses	84,459
Liabilities from inventories not owned	114,860
Notes payable	110,001
Intercompany Payable	170,830
Liabilities	1,664,416
Equity
Stockholders' Equity Attributable to Parent	(651,772)
Noncontrolling interests	0
Total liabilities and equity	1,012,644
Reporting Entities | California Lyon | 7% Senior Notes due August 15, 2022
LIABILITIES AND EQUITY
Total debt	347,639
Reporting Entities | California Lyon | 6% Senior Notes due September 1, 2023
LIABILITIES AND EQUITY
Total debt	344,206
Reporting Entities | California Lyon | 5 7/8% Senior Notes due January 31, 2025
LIABILITIES AND EQUITY
Total debt	428,430
Consolidation, Eliminations
ASSETS
Cash and cash equivalents	0	0	$ 0	$ 0
Receivables	0	0
Escrow proceeds receivable	0
Real estate inventories	0	0
Not owned	0	0
Investment in unconsolidated joint ventures	0	0
Goodwill	0	0
Intangibles, net	0	0
Deferred income taxes	0	0
Lease right-of-use assets	0	0
Other assets	0	0
Investments In Subsidiaries	48,598	82,569
Intercompany Receivable	(294,465)	(285,675)
Assets	(245,867)	(203,106)
LIABILITIES AND EQUITY
Accounts payable	0	0
Accrued expenses	0	0
Liabilities from inventories not owned	0	0
Notes payable	0	0
Intercompany Payable	(294,465)	(285,675)
Liabilities	(294,465)	(285,675)
Equity
Stockholders' Equity Attributable to Parent	48,598	82,569
Noncontrolling interests	0	0
Total liabilities and equity	(245,867)	(203,106)
Consolidation, Eliminations | 5 3/4% Senior Notes due April 15, 2019
LIABILITIES AND EQUITY
Total debt
Consolidation, Eliminations | 7% Senior Notes due August 15, 2022
LIABILITIES AND EQUITY
Total debt	0	0
Consolidation, Eliminations | 6% Senior Notes due September 1, 2023
LIABILITIES AND EQUITY
Total debt	0	0
Consolidation, Eliminations | 5 7/8% Senior Notes due January 31, 2025
LIABILITIES AND EQUITY
Total debt	$ 0	$ 0