Debt - Warehouse Lines of Credit (Details) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Outstanding Borrowings	$ 252,529,000	$ 33,043,000
Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity	625,000,000	115,000,000
Outstanding Borrowings	252,529,000	33,043,000
City National Bank \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity	100,000,000
Outstanding Borrowings	$ 36,010,000
Weighted-Average Interest Rate on Outstanding Borrowings	4.43%
Comerica Bank \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity	$ 75,000,000
Outstanding Borrowings	$ 29,599,000
Weighted-Average Interest Rate on Outstanding Borrowings	5.14%
Origin Bank \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity	$ 75,000,000
Outstanding Borrowings	$ 33,572,000
Weighted-Average Interest Rate on Outstanding Borrowings	4.82%
M&T Bank \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity	$ 50,000,000
Outstanding Borrowings	$ 21,068,000
Weighted-Average Interest Rate on Outstanding Borrowings	4.91%
Prosperity Bank \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity	$ 150,000,000
Outstanding Borrowings	$ 59,578,000
Weighted-Average Interest Rate on Outstanding Borrowings	4.93%
Republic Bank & Trust Company \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity	$ 75,000,000
Outstanding Borrowings	$ 29,171,000
Weighted-Average Interest Rate on Outstanding Borrowings	4.38%
Wells Fargo Bank, N.A. \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity	$ 100,000,000
Outstanding Borrowings	$ 43,531,000
Weighted-Average Interest Rate on Outstanding Borrowings	5.12%
Western Alliance Bank \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity		50,000,000
Outstanding Borrowings		$ 17,089,000
Weighted-Average Interest Rate on Outstanding Borrowings		3.00%
Texas Capital Bank, N.A. \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity		$ 40,000,000
Outstanding Borrowings		$ 11,852,000
Weighted-Average Interest Rate on Outstanding Borrowings		3.01%
Flagstar Bank, FSB \| Warehouse Agreement Borrowings
Debt Instrument [Line Items]
Borrowing Capacity		$ 25,000,000
Outstanding Borrowings		$ 4,102,000
Weighted-Average Interest Rate on Outstanding Borrowings		3.00%

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.

No definition available.

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- Definition

Weighted average interest rate of debt outstanding.

+ References

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

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.

+ References

Reference 1: 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(13))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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