Loans - Loans Serviced for Others (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Mortgage Loans Serviced For Others [Abstract]
Mortgage loans serviced	$ 3,493,312	$ 3,323,521
Analysis Of Capitalized Mortgage Loan Servicing Rights [Abstract]
Balance at beginning of period	26,232	16,904	$ 19,171
Originated servicing rights capitalized	6,061	11,436	13,957
Change in fair value due to price	14,272	3,380	(10,833)
Change in fair value due to pay downs	(4,076)	(5,488)	(5,391)
Balance at end of year	42,489	26,232	16,904
Loans sold and serviced that have had servicing rights capitalized	3,493,312	3,323,521	$ 2,982,833
Fannie Mae
Mortgage Loans Serviced For Others [Abstract]
Mortgage loans serviced	1,840,221	1,753,255
Freddie Mac
Mortgage Loans Serviced For Others [Abstract]
Mortgage loans serviced	1,375,514	1,344,675
Ginnie Mae
Mortgage Loans Serviced For Others [Abstract]
Mortgage loans serviced	169,421	170,983
FHLB
Mortgage Loans Serviced For Others [Abstract]
Mortgage loans serviced	72,809	49,581
Other
Mortgage Loans Serviced For Others [Abstract]
Mortgage loans serviced	$ 35,347	$ 5,027

Analysis of capitalized mortgage loan servicing rights [Abstract]

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The carrying amount of mortgage loans on real estate that were being serviced for others at period end.

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Mortgage Loans Serviced For Others [Abstract]

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This is the principal amount outstanding for mortgage loans serviced for others.

+ References

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Amount of increase (decrease) in fair value of servicing assets due to changes in price.

+ References

No definition available.

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Amount of increase (decrease) in fair value of servicing assets due to pay downs.

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Amount of additions from purchases, assumption or transfer to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 4
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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
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-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

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-Publisher FASB
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