Mortgage Servicing Rights - Data and Key Economic Assumptions Related to the Company's Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Data and Key Economic Assumptions Related to Mortgage Servicing Rights [Abstract]
Unpaid principal balance	$ 6,008,937	$ 7,826,182	$ 7,494,413
Weighted-average prepayment speed (CPR)	9.48%	8.77%	7.00%
Estimated impact of a 10% increase	$ (3,134)	$ (2,653)	$ (5,393)
Estimated impact of a 20% increase	$ (6,062)	$ (5,457)	$ (10,354)
Discount rate	11.05%	10.85%	10.30%
Estimated impact of a 100bp increase	$ (3,809)	$ (4,753)	$ (1,765)
Estimated impact of a 200bp increase	$ (7,336)	$ (9,149)	$ (3,957)
Weighted-average coupon interest rate	4.29%	3.88%	3.51%
Weighted-average servicing fee (basis points)	0.3591%	0.3324%	0.3244%
Weighted-average remaining maturity (in years)	7 years 3 months 18 days	7 years 6 months	8 years 3 months 29 days

Data and Key Economic Assumptions Related to Mortgage Servicing Rights

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- Definition

Value assumptions used to estimate fair value unpaid principle balance.

+ References

No definition available.

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- Definition

Servicing assets and servicing liabilities at fair value assumptions used to estimate fair value weighted average coupon interest rate.

+ References

No definition available.

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- Definition

Servicing assets and servicing liabilities at fair value assumptions used to estimate fair value weighted average remaining maturity.

+ References

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- Definition

Servicing assets and servicing liabilities at fair value assumptions used to estimate fair value weighted average servicing fee.

+ References

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- Definition

The hypothetical financial impact of a 10 percent adverse change of the discount rate on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4

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- Definition

The hypothetical financial impact of a 10 percent adverse change of prepayment speed on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date.

+ References

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- Definition

The hypothetical financial impact of a 20 percent adverse change of the discount rate on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date.

+ References

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- Definition

The hypothetical financial impact of a 20 percent adverse change of prepayment speed on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date.

+ References

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- Definition

Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481229/860-50-50-2

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- Definition

Estimated rate of prepayments of principal on servicing assets and servicing liabilities.

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