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Segment Information, Nature of Operations, and Certain Concentrations - Schedule of other segment items (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Mortgage Banking |  |  |
Segment Reporting Information [Line Items] |  |  |
Other segment items, net: | $ 23,777 | $ 20,271 | $ 15,432
Mid Atlantic | Home Building |  |  |
Segment Reporting Information [Line Items] |  |  |
Other segment items, net: | 2,036 | 1,589 | 1,517
North East | Home Building |  |  |
Segment Reporting Information [Line Items] |  |  |
Other segment items, net: | 321 | 297 | 576
Mid East | Home Building |  |  |
Segment Reporting Information [Line Items] |  |  |
Other segment items, net: | 628 | 440 | 833
South East | Home Building |  |  |
Segment Reporting Information [Line Items] |  |  |
Other segment items, net: | $ 2,690 | $ 3,040 | $ 1,310

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- Definition Amount of other expense (income) and loss (gain) calculated as difference between segment revenue and separately disclosed expense category to arrive at segment profit (loss). + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 48 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 26C -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-26C Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 26B -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-26B + Details
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