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Segment Disclosures - Corporate Capital Allocation Charge (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate Capital Allocation | $ 34,511 | $ 29,673 | $ 63,477 | $ 55,291
Operating Segments [Member] | Homebuilding Mid Atlantic [Member] |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate Capital Allocation | 21,742 | 18,609 | 39,898 | 34,716
Operating Segments [Member] | Homebuilding North East [Member] |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate Capital Allocation | 2,733 | 2,353 | 5,182 | 4,347
Operating Segments [Member] | Homebuilding Mid East [Member] |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate Capital Allocation | 6,180 | 5,716 | 11,478 | 10,731
Operating Segments [Member] | Homebuilding South East [Member] |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate Capital Allocation | $ 3,856 | $ 2,995 | $ 6,919 | $ 5,497

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- Details
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