Fair Value Disclosures (Schedule Of Carrying Values And Estimated Fair Values Of Financial Instruments) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans held for sale		$ 185,246	$ 112,394
Inventory carrying value before impairment		12,700
Impairment charge		2,000
Senior Notes 6.750% [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying amounts include unamortized deferred financing costs, premiums and discounts		$ 5,700
Interest rate		6.75%
Senior Notes 6.875% [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying amounts include unamortized deferred financing costs, premiums and discounts			$ 4,900
Interest rate			6.875%
Senior Notes 5.875% [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying amounts include unamortized deferred financing costs, premiums and discounts		$ 3,900	$ 4,600
Interest rate		5.875%	5.875%
Insurance Premium Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate			3.278%
Level 2 [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured notes receivable	[1]	$ 2,602	$ 4,947
Mortgage loans held for sale	[2]	185,246	112,394
Derivative assets	[3]	1,382	726
5.875% senior notes	[4],[5]	396,120	395,415
6.750% senior notes	[4],[5]	494,307
6.875% senior notes	[4],[5]		380,567
Other financing obligations	[6],[7]	6,277	8,795
Mortgage repurchase facilities	[6]	174,095	104,555
Level 2 [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured notes receivable	[1]	2,545	4,830
Mortgage loans held for sale	[2]	185,246	112,394
Derivative assets	[3]	1,382	726
5.875% senior notes	[4],[5]	415,680	356,000
6.750% senior notes	[4],[5]	537,500
6.875% senior notes	[4],[5]		372,488
Other financing obligations	[6],[7]	6,277	8,795
Mortgage repurchase facilities	[6]	174,095	104,555
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of communities		10,700
Level 3 [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Revolving line of credit	[6]	68,700	202,500
Level 3 [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Revolving line of credit	[6]	$ 68,700	$ 202,500
Minimum | Insurance Premium Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate		3.278%
Maximum | Insurance Premium Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate		3.24%

[1] Estimated fair value of the secured notes receivable was based on cash flow models discounted at market interest rates which considered the underlying risks of the note.

[2] The mortgage loans held for sale are carried at fair value, which is based on quoted market prices for committed mortgage loans.

[3] Derivative instruments are carried at fair value and based on market prices for similar instruments. Changes in fair value are reflected in financial services revenue on the condensed consolidated statement of operations. As of December 31, 2019 and December 31, 2018, we had immaterial amounts of derivative liabilities which are presented within accrued expenses and other liabilities on the condensed consolidated balance sheets. Refer to Note 1 – Nature of Operations and Summary of Significant Accounting Policies for further information regarding our derivative instruments.

[4] Carrying amounts include any associated unamortized deferred financing costs, premiums and discounts. As of December 31, 2019, these amounts totaled $5.7 million and $3.9 million for the 6.750% senior notes and 5.875% senior notes, respectively. As of December 31, 2018, these amounts totaled $4.9 million and $4.6 million for the 6.875% senior notes and 5.875% senior notes, respectively.

[5] Estimated fair value of the senior notes is based on recent trading activity in inactive markets.

[6] Carrying amount approximates fair value due to short-term nature and interest rate terms.

[7] Insurance premium notes included in other financing obligations bore interest rates ranging from 3.278% to 3.240% during the year ended December 31, 2019 and during the year ended December 31, 2018 bore an interest rate of 3.278%.