CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) - USD ($) $ in Thousands |
Jun. 30, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Available-for-sale securities, at amortized cost | $ 1,688,051 | $ 1,831,791 |
| Securities - held-to-maturity | 262,444 | 261,692 |
| Equity securities, at amortized cost | $ 778 | $ 777 |
| Common stock, par value (in dollars per share) | $ 0.10 | $ 0.10 |
| Common stock, authorized (in shares) | 25,000,000 | 25,000,000 |
| Common stock, issued (in shares) | 14,441,413 | 14,555,741 |
| Treasury stock, shares (in shares) | 124,265 | 128,749 |