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Mortgage Banking - Schedule of Mortgage Loans Sold and Serviced for Others (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	$ 8,912,368	$ 8,762,709
Federal National Mortgage Association [Member]
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	4,757,987	4,821,246
Government National Mortgage Association [Member]
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	3,838,185	3,695,419
Federal Home Loan Mortgage Corporation [Member]
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	289,270	213,358
Other [Member]
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	$ 26,926	$ 32,686

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- References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column G)(Footnote 3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
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-URI https://asc.fasb.org/1943274/2147478322/948-310-S50-2

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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
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-URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1

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-Topic 948
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-Topic 948
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