Mortgage Servicing Rights - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Mortgage Servicing Rights [Abstract]
Mortgage servicing rights portfolio	$ 372,000		$ 377,300
Mortgage Servicing Right, Key Economic Assumptions [Abstract]
Prepayment speed (Public Securities Association PSA model)	209.00%	187.00%
Weighted-average life	5 years 5 months 16 days	6 years 2 months 3 days
Discount rate	10.10%	12.50%
Mortgage servicing income	$ 244	$ 242
Federal National Mortgage Association
Mortgage Servicing Rights [Abstract]
Loans serviced for others	359,000		363,300
Other Financial Institutions
Mortgage Servicing Rights [Abstract]
Loans serviced for others	$ 13,000		$ 14,000

Fees and Commissions, Mortgage Banking and Servicing, Income (Loss)

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- Definition

Amount of loans serviced for the benefit of others.

+ References

No definition available.

+ Details

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- Definition

This is the result of the principal amount outstanding of total loans managed or securitized less securitized loans and loans that are in the process of being securitized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118948506&loc=d3e107314-111719

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- References

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122596-111746

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- Definition

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

+ References

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- Definition

Weighted average life of financial assets and financial liabilities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- References

No definition available.

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