Fair Value - Summary of Change in MSR Assets (Detail) - MSR Assets [Member] - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Servicing Asset at Amortized Cost [Line Items]
Beginning Balance, amortized cost		$ 16,469
Beginning Balance, fair value	$ 28,991
Change in accounting method		4,484
Additions	1,010	5,791
Fair value adjustments	(2,887)	2,247
Ending Balance, fair value	$ 27,114	$ 28,991

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 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.

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Fair value 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 other increase (decrease) 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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Amount of increase (decrease) in the amortized amount from a decrease (increase) in the valuation allowance applied to the servicing asset for a contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

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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.

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