Debt (Narrative) (Details) - USD ($)	9 Months Ended
Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Notes payable	$ 1,118,943,000	$ 1,062,471,000
Line of credit facility, outstanding amount	414,000,000
Mortgage repurchase facilities	$ 247,214,000	239,298,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Weighted average interest rate	7.40%
Line of credit facility, outstanding amount	$ 414,000,000.0	$ 0
Inspire [Member] \| Mortgage Repurchase Facilities - Financial Services [Member]
Debt Instrument [Line Items]
Weighted average interest rate	6.80%
Maturity date	Sep. 26, 2025
Maximum [Member] \| Inspire [Member] \| Mortgage Repurchase Facilities - Financial Services [Member]
Debt Instrument [Line Items]
Line of credit facility. maximum borrowing capacity	$ 475,000,000.0
Second Amended And Restated Credit Agreement [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maturity date	Apr. 30, 2026
Line of credit facility. maximum borrowing capacity	$ 800,000,000.0
Letter of credit sublimit	250,000,000.0
Swingline loans sublimit	50,000,000.0
Second Amended And Restated Credit Agreement [Member] \| Maximum [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, increased amount	$ 200,000,000.0
Second Amended And Restated Credit Agreement [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Second Amended And Restated Credit Agreement [Member] \| SOFR Administered By FRB Of NY [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.10%
Construction Loan Agreement [Member]
Debt Instrument [Line Items]
Principal amount	$ 187,600,000
Weighted average interest rate	7.20%	7.40%
Notes payable	$ 110,300,000	$ 44,900,000
Debt instrument, option to extend maturity, term	12 months
Construction Loan Agreement [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Maturity date	Mar. 17, 2026
Construction Loan Agreement [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Maturity date	Mar. 17, 2028

Debt Instrument, Option To Extend Maturity, Term

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- Definition

Letter Of Credit Sublimit

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No definition available.

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- Definition

Swingline Loans, Sublimit

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No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Amount of increase (decrease) of the credit facility.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of the outstanding short-term borrowings under a revolving line of credit used by mortgage bankers to finance the origination or purchase of loans.

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