Warehouse Facilities Collateralized by U.S. Government Sponsored Enterprises (Details) - USD ($)	9 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Securities Financing Transaction
Outstanding draws	$ 1,350,390,000	$ 754,308,000
Committed Lines
Securities Financing Transaction
Lines available	1,450,000,000
Uncommitted Lines
Securities Financing Transaction
Lines available	1,600,000,000
Warehouse facility due May 5, 2026
Securities Financing Transaction
Outstanding draws	$ 473,402,000	35,841,000
Basis spread on variable rate	1.30%
Warehouse facility due May 5, 2026 \| Committed Lines
Securities Financing Transaction
Lines available	$ 450,000,000
Warehouse facility due May 5, 2026 \| Uncommitted Lines
Securities Financing Transaction
Lines available	300,000,000
Warehouse facility due September 25, 2026
Securities Financing Transaction
Outstanding draws	$ 115,790,000	143,470,000
Basis spread on variable rate	1.30%
Warehouse facility due September 25, 2026 \| Committed Lines
Securities Financing Transaction
Lines available	$ 200,000,000
Warehouse facility due September 25, 2026 \| Uncommitted Lines
Securities Financing Transaction
Lines available	200,000,000
Warehouse facility due October 4, 2025
Securities Financing Transaction
Outstanding draws	$ 724,805,000	416,908,000
Basis spread on variable rate	1.30%
Warehouse facility due October 4, 2025 \| Committed Lines
Securities Financing Transaction
Lines available	$ 800,000,000
Warehouse facility due October 4, 2025 \| Committed Lines \| Minimum
Securities Financing Transaction
Warehouse line was temporarily increased	100,000,000
Warehouse facility due October 4, 2025 \| Committed Lines \| Maximum
Securities Financing Transaction
Warehouse line was temporarily increased	900,000,000
Warehouse facility due October 4, 2025 \| Uncommitted Lines
Securities Financing Transaction
Lines available	600,000,000
Fannie Mae repurchase agreement, open maturity
Securities Financing Transaction
Outstanding draws	$ 36,393,000	$ 158,089,000
Basis spread on variable rate	1.15%
Fannie Mae repurchase agreement, open maturity \| Committed Lines
Securities Financing Transaction
Lines available	$ 0
Fannie Mae repurchase agreement, open maturity \| Uncommitted Lines
Securities Financing Transaction
Lines available	$ 500,000,000

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

No definition available.

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- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) of the credit facility.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

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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.

+ References

No definition available.

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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
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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