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Segment Information, Nature of Operations, and Certain Concentrations (Details 1) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Profit |  |  |
Consolidated Income before Taxes | $ 207,576 | $ 322,393 | $ 298,414
Equity-based compensation expense | (64,473) | (53,136) | (46,302)
Homebuilding Mid Atlantic [Member] |  |  |
Profit |  |  |
Consolidated Income before Taxes | 148,373 | 209,496 | 185,861
Homebuilding North East [Member] |  |  |
Profit |  |  |
Consolidated Income before Taxes | 13,463 | 25,090 | 19,572
Homebuilding Mid East [Member] |  |  |
Profit |  |  |
Consolidated Income before Taxes | 27,194 | 56,882 | 38,012
Homebuilding South East [Member] |  |  |
Profit |  |  |
Consolidated Income before Taxes | 14,162 | 10,870 | 7,384
Mortgage Banking [Member] |  |  |
Profit |  |  |
Mortgage Banking | 26,102 | 35,704 | 38,138
Contract Land Deposit Impairment Reserve [Member] |  |  |
Profit |  |  |
Total segment Profit | (2,878) | 16,206 | 42,939
Corporate Capital Allocation [Member] |  |  |
Profit |  |  |
Total segment Profit | 71,226 | 65,971 | 61,753
Unallocated Corporate Overhead [Member] |  |  |
Profit |  |  |
Total segment Profit | (45,355) | (55,992) | (44,103)
Consolidation Adjustments And Other [Member] |  |  |
Profit |  |  |
Total segment Profit | 20,477 | 15,848 | 4,970
Corporate Interest Expense [Member] |  |  |
Profit |  |  |
Total segment Profit | (715) | (4,546) | (9,810)
Reconciling items sub-total [Member] |  |  |
Profit |  |  |
Total segment Profit | (21,718) | (15,649) | 9,447
Reportable Segment [Member] |  |  |
Profit |  |  |
Consolidated Income before Taxes | $ 229,294 | $ 338,042 | $ 288,967

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- Definition Mortgage banking income from continuing operations before stock-based compensation expense and income taxes. + References No definition available. + Details
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- 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 No definition available. + Details
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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 + Details
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