Fair Value Disclosures (Schedule Of Carrying Values And Estimated Fair Values Of Financial Instruments) (Details) - USD ($) $ in Thousands		Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage loans held for sale		$ 141,846	$ 185,246
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		$ 3,700	$ 3,900
Interest rate		5.875%	5.875%
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		$ 5,500
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			$ 5,700
Interest rate			6.875%
Level 2 [Member] | Senior Notes 5.875% [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate		5.875%
Level 2 [Member] | Senior Notes 6.750% [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate		6.75%
Level 2 [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured notes receivable	[1]	$ 2,571	$ 2,602
Mortgage loans held for sale	[2]	141,846	185,246
Derivative assets	[3]	2,962	1,382
Other financing obligations	[4],[5]	8,371	6,277
Derivative liabilities	[3]	3,159	147
Mortgage repurchase facilities	[4]	133,794	174,095
Level 2 [Member] | Carrying Value [Member] | Senior Notes 5.875% [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
5.875% senior notes	[6],[7]	396,296	396,120
Level 2 [Member] | Carrying Value [Member] | Senior Notes 6.750% [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
6.750% senior notes	[6],[7]	494,499	494,307
Level 2 [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured notes receivable	[1]	2,522	2,545
Mortgage loans held for sale	[2]	141,846	185,246
Derivative assets	[3]	2,962	1,382
Other financing obligations	[4],[5]	8,371	6,277
Derivative liabilities	[3]	3,159	147
Mortgage repurchase facilities	[4]	133,794	174,095
Level 2 [Member] | Fair Value [Member] | Senior Notes 5.875% [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
5.875% senior notes	[6],[7]	335,520	415,680
Level 2 [Member] | Fair Value [Member] | Senior Notes 6.750% [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
6.750% senior notes	[6],[7]	414,700	537,500
Level 3 [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Revolving line of credit	[4]	521,900	68,700
Level 3 [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Revolving line of credit	[4]	$ 521,900	$ 68,700
Minimum | Insurance Premium Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate		3.24%	3.24%
Maximum | Insurance Premium Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate		3.278%	3.278%

[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. Derivative assets are presented within prepaid expenses and other assets on the condensed consolidated balance sheets. Derivative liabilities are presented within accrued expenses and other liabilities on the condensed consolidated balance sheets.

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

[5] Insurance premium notes including in other financing obligations bore interest rates ranging from 3.278% to 3.240% during the periods ending March 31, 2020 and December 31, 2019.

[6] Carrying amounts include any associated unamortized deferred financing costs, premiums and discounts. As of March 31, 2020, these amounts totaled $5.5 million and $3.7 million for the 6.750% senior notes and 5.875% senior notes, respectively. As of December 31, 2019, these amounts totaled $5.7 million and $3.9 million for the 6.875% senior notes and 5.875% senior notes, respectively.

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