Parent Company Only Condensed Financial Information - Schedule of Condensed Statements of Operations and Comprehensive Income (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Expenses:
Interest expense		$ 26,487	$ 7,279
Other noninterest expenses		3,636	2,807
Income before income tax (benefit) expense		(15,329)	6,820
Income tax benefit		(3,361)	1,222
Net (loss) income	$ (11,712)	(11,968)	5,598
Comprehensive Loss		(8,772)	(2,585)
Parent Company [Member]
Income:
Interest income		0	11
Dividend income from subsidiaries		0	0
Expenses:
Interest expense		1,926	1,501
Other noninterest expenses		5,135	564
Income before income tax (benefit) expense		(7,061)	(2,054)
Income tax benefit		(1,128)	(407)
Net income (loss), including portion attributable to noncontrolling interest, total		(5,933)	(1,647)
Equity in undistributed subsidiary (loss) income		(6,035)	7,245
Net (loss) income		(11,968)	5,598
Comprehensive Loss		$ (8,772)	$ (2,585)