Condensed Financial Information - Parent Company Only - Schedule of Condensed Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets:
Cash and due from banks	$ 84,176	$ 49,202
Interest-earning deposits with other banks	68,623	840,948
Cash and cash equivalents	152,799	890,150	$ 219,858	$ 125,128
Investments in subsidiaries, at equity in net assets:
Other assets	6,068	4,982
Total assets	7,222,016	7,122,421	6,336,496
Liabilities:
Subordinated notes	148,260	98,874
Other liabilities	58,436	46,070
Total liabilities	6,445,516	6,348,627
Shareholders' equity:	776,500	773,794	692,472	675,122
Total liabilities and shareholders' equity	7,222,016	7,122,421
Parent Company [Member]
Assets:
Cash and due from banks	129,923	99,608
Interest-earning deposits with other banks	283	246
Cash and cash equivalents	130,206	99,854	$ 154,633	$ 82,850
Investments in securities	781	978
Investments in subsidiaries, at equity in net assets:
Bank	786,560	761,782
Non-banks	0	0
Other assets	13,258	20,521
Total assets	930,805	883,135
Liabilities:
Subordinated notes	148,260	98,874
Other liabilities	6,045	10,467
Total liabilities	154,305	109,341
Shareholders' equity:	776,500	773,794
Total liabilities and shareholders' equity	$ 930,805	$ 883,135