Parent Company Only Condensed Financial Information - Schedule of Condensed Statements of Cash Flows (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
OPERATING ACTIVITIES
Net income (loss)	$ (11,712)	$ 26,209	$ (11,968)
Adjustments:
Accretion (amortization) of premiums and discounts		(11,747)	(204)
Share-based and deferred compensation		1,864	1,049
Net cash provided by (used in) operating activities		25,442	(10)
INVESTING ACTIVITIES
Net cash acquired through merger and acquisition			41,745
Net cash (used in) provided by investing activities		(122,018)	58,583
FINANCING ACTIVITIES
Proceeds from issuance of common stock, net		152	10,132
Issuance of shares from exercise of stock options		14	150
Dividends paid		(11,105)	(4,870)
Net cash provided by (used in) financing activities		182,486	(8,394)
Increase in cash and cash equivalents		85,910	50,179
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD		80,190	30,011
CASH AND CASH EQUIVALENTS AT END OF PERIOD	80,190	166,100	80,190
Parent Company [Member]
OPERATING ACTIVITIES
Net income (loss)		26,209	(11,968)
Adjustments:
Undistributed (loss) earnings of subsidiaries		(30,181)	6,035
Accretion (amortization) of premiums and discounts		540	(118)
Share-based and deferred compensation		85	0
Other, net		(1,786)	(549)
Net cash provided by (used in) operating activities		(5,133)	(6,600)
INVESTING ACTIVITIES
Net cash acquired through merger and acquisition		0	8,014
Investments in subsidiaries		0	(10,400)
Cash dividends from subsidiaries		3,900	0
Net cash from dissolution of subsidiary		0	635
Net cash (used in) provided by investing activities		3,900	(1,751)
FINANCING ACTIVITIES
Proceeds from issuance of common stock, net		153	10,132
Issuance of shares from exercise of stock options		14	150
Dividends paid		(11,105)	(4,870)
Net cash provided by (used in) financing activities		(10,938)	5,412
Increase in cash and cash equivalents		(12,171)	(2,939)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD		12,547	15,486
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 12,547	$ 376	$ 12,547