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Fair Value - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total fair value measurement gain/(loss) | $ (7,435) | $ 18,237 |
Senior Notes due 2022 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 0 | 599,553 |
Level 2 | Fair Value, Measurements, Recurring | Senior Notes due 2022 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Senior Notes fair value | 0 | 610,452 |
Home Building |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 914,888 | 1,516,255 |
Mortgage Banking |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance | 316,806 | 302,192 |
Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance | 316,806 | 302,192 |
Mortgage Banking | Level 2 | Not Designated as Hedging Instrument |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair value adjustment income (expense) | 25,673 | (2,654) | $ 1,472
Mortgage Banking | Level 2 | Fair Value, Measurements, Recurring | Rate lock commitments |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total fair value measurement gain/(loss) | 11,300 |  |
Derivative, Notional Amount | 1,607,055 |  |
Derivative, Notional Amount | 1,607,055 |  |
Mortgage Banking | Level 2 | Fair Value, Measurements, Recurring | Forward sales contracts |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total fair value measurement gain/(loss) | (16,060) |  |
Derivative, Notional Amount | 1,752,852 |  |
Derivative, Notional Amount | 1,752,852 |  |
Mortgage Banking | Level 2 | Fair Value, Measurements, Recurring | Mortgages held for sale |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total fair value measurement gain/(loss) | (2,675) | 4,296 |
Derivative, Notional Amount | 319,481 | 297,896 |
Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance | 316,806 | 302,192 |
Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance | 316,806 | 302,192 |
Derivative, Notional Amount | $ 319,481 | $ 297,896 |

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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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