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Segment Disclosures - Corporate Capital Allocation Charge (Detail) - Corporate and Reconciling Items [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate capital allocation charge | $ 59,870 | $ 56,177 | $ 116,521 | $ 110,735
Home Building [Member] | Mid Atlantic [Member] |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate capital allocation charge | 31,581 | 31,378 | 61,336 | 61,794
Home Building [Member] | North East [Member] |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate capital allocation charge | 5,790 | 4,626 | 11,349 | 9,353
Home Building [Member] | Mid East [Member] |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate capital allocation charge | 9,687 | 9,497 | 19,050 | 18,512
Home Building [Member] | South East [Member] |  |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |  |
Corporate capital allocation charge | $ 12,812 | $ 10,676 | $ 24,786 | $ 21,076

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- Definition The corporate capital allocation charge is eliminated in consolidation and is based on the segment’s average net assets employed. + References No definition available. + Details
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- Details
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