MORTGAGE SERVICING RIGHTS - Summary of Components of Net Carrying Value of Acquired and Originated MSRs (Detail) - MSRs - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Mortgage Servicing Rights Acquired and Originated
Gross value	$ 1,622,213	$ 1,548,870
Accumulated amortization	(654,443)	(595,025)
Net carrying value	$ 967,770	$ 953,845

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