MORTGAGE SERVICING RIGHTS - Schedule of Activity Related to MSRs (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Mortgage Servicing Rights
Beginning balance			$ 852,399
Ending balance	$ 817,814		817,814
MSRs
Mortgage Servicing Rights
Beginning balance	825,761	$ 881,834	852,399	$ 907,415
Additions, following the sale of loan	47,068	21,172	73,911	47,582
Amortization	(53,264)	(50,495)	(105,086)	(101,026)
Pre-payments and write-offs	(1,751)	(1,680)	(3,410)	(3,140)
Ending balance	$ 817,814	$ 850,831	$ 817,814	$ 850,831

Amount of other-than-temporary impairment (OTTI) applied to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(6)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481229/860-50-50-4

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Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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Amount of amortization of 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
-Topic 860
-SubTopic 50
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-URI https://asc.fasb.org/1943274/2147481229/860-50-50-4

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
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-URI https://asc.fasb.org/1943274/2147481229/860-50-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Amount of additions from transfer to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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No definition available.

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