Condensed Parent Company Statements - Statements of Financial Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Statements of Financial Condition
Cash	$ 105,262	$ 90,008
Prepaid expenses and other assets	69,461	45,176
Total assets	5,680,702	5,449,944
Subordinated debentures issued to capital trust	74,281	73,984
Subordinated notes	74,281	73,984
Additional paid-in capital	42,445	38,314
Retained earnings	543,875	545,548
Accumulated other comprehensive income (loss), net of income taxes of $(17,948) and $9,676 at December 31, 2022 and 2021, respectively	(53,355)	32,759
Total liabilities and stockholders' equity	5,680,702	5,449,944
Parent Company
Statements of Financial Condition
Cash	29,097	48,372
Investment in subsidiary bank	608,416	672,342
Deferred and accrued income taxes	148	94
Prepaid expenses and other assets	882	868
Total assets	638,543	721,676
Accounts payable and accrued expenses	5,401	5,166
Subordinated debentures issued to capital trust	25,774	25,774
Subordinated notes	74,281	73,984
Common Stock	122	131
Additional paid-in capital	42,445	38,314
Retained earnings	543,875	545,548
Accumulated other comprehensive income (loss), net of income taxes of $(17,948) and $9,676 at December 31, 2022 and 2021, respectively	(53,355)	32,759
Total liabilities and stockholders' equity	$ 638,543	$ 721,676