UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Shares [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss)/Income [Member]	Total
Balance at Dec. 31, 2021	$ 8	$ 77,516	$ 387,331	$ (1,719)	$ 463,136
Balance (in shares) at Dec. 31, 2021	789,646
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	55,037	0	55,037
Other comprehensive (loss)/gain, net of tax	0	0	0	(25,980)	(25,980)
Cash dividends declared	0	0	(6,110)	0	(6,110)
Repurchase of common stock	$ 0	(17,905)	0	0	(17,905)
Repurchase of common stock (in shares)	(18,824)
Balance at Sep. 30, 2022	$ 8	59,611	436,258	(27,699)	468,178
Balance (in shares) at Sep. 30, 2022	770,822
Balance at Jun. 30, 2022	$ 8	65,671	416,722	(21,048)	461,353
Balance (in shares) at Jun. 30, 2022	777,190
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	19,536	0	19,536
Other comprehensive (loss)/gain, net of tax	0	0	0	(6,651)	(6,651)
Repurchase of common stock	$ 0	(6,060)	0	0	(6,060)
Repurchase of common stock (in shares)	(6,368)
Balance at Sep. 30, 2022	$ 8	59,611	436,258	(27,699)	468,178
Balance (in shares) at Sep. 30, 2022	770,822
Balance at Dec. 31, 2022	$ 8	57,206	449,932	(21,838)	$ 485,308
Balance (in shares) at Dec. 31, 2022	768,337				768,337
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	66,889	0	$ 66,889
Other comprehensive (loss)/gain, net of tax	0	0	0	1,106	1,106
Cash dividends declared	0	0	(6,286)	0	(6,286)
Repurchase of common stock	$ (1)	(16,393)	0	0	(16,394)
Repurchase of common stock (in shares)	(16,324)
Balance at Sep. 30, 2023	$ 7	40,813	510,535	(20,732)	$ 530,623
Balance (in shares) at Sep. 30, 2023	752,013				752,013
Balance at Jun. 30, 2023	$ 8	43,263	488,501	(17,063)	$ 514,709
Balance (in shares) at Jun. 30, 2023	754,523
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	22,034	0	22,034
Other comprehensive (loss)/gain, net of tax	0	0	0	(3,669)	(3,669)
Repurchase of common stock	$ (1)	(2,450)	0	0	(2,451)
Repurchase of common stock (in shares)	(2,510)
Balance at Sep. 30, 2023	$ 7	$ 40,813	$ 510,535	$ (20,732)	$ 530,623
Balance (in shares) at Sep. 30, 2023	752,013				752,013