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Segment Disclosure (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Profit
Consolidated income before taxes	$ 30,958	$ 24,835
Mortgage Banking	8,742	6,741
Equity-based compensation expense	(16,440)	(15,580)
Reportable Segment [Member]
Profit
Consolidated income before taxes	45,154	37,560
Contract Land Deposit Reserve Adjustment [Member]
Profit
Segment reporting reconciling item for operating profit	1,309	(1,130)
Corporate Capital Allocation [Member]
Profit
Segment reporting reconciling item for operating profit	18,972	15,423
Unallocated Corporate Overhead [Member]
Profit
Segment reporting reconciling item for operating profit	(18,803)	(16,460)
Consolidation Adjustments And Other [Member]
Profit
Segment reporting reconciling item for operating profit	827	5,125
Corporate Interest Expense [Member]
Profit
Segment reporting reconciling item for operating profit	(61)	(103)
Reconciling items sub-total [Member]
Profit
Segment reporting reconciling item for operating profit	(14,196)	(12,725)
Homebuilding Mid Atlantic [Member]
Profit
Consolidated income before taxes	29,086	25,876
Homebuilding North East [Member]
Profit
Consolidated income before taxes	2,461	1,123
Homebuilding Mid East [Member]
Profit
Consolidated income before taxes	960	1,607
Homebuilding South East [Member]
Profit
Consolidated income before taxes	$ 3,905	$ 2,213

X

- Definition

Income from continuing operations before income taxes.

+ References

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X

- Definition

Mortgage banking income from continuing operations before stock-based compensation expense and income taxes.

+ References

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X

- Definition

Amount of an item in the reconciliation of total profit or loss from reportable segments, to the entity's consolidated income before income taxes, extraordinary items, discontinued operations.

+ References

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

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