Fair Value - Assets and Liabilities Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Assets
Total available-for-sale securities	$ 1,858,428	$ 1,926,516
Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities	1,858,428	1,926,516
Other assets	15,210	13,777
Liabilities
Other liabilities	(9,185)	(8,405)
Total
Total	1,864,453	1,931,888
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Other assets	289	179
Total
Total	289	179
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities	1,858,428	1,926,516
Other assets	14,921	13,598
Liabilities
Other liabilities	(6,885)	(6,105)
Total
Total	1,866,464	1,934,009
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Liabilities
Other liabilities	(2,300)	(2,300)
Total
Total	(2,300)	(2,300)
Government agency debt securities
Assets
Total available-for-sale securities		8,147
Government agency debt securities | Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities		8,147
Government agency debt securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities		8,147
Residential - Government agency
Assets
Total available-for-sale securities	35,314	35,859
Residential - Government agency | Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities	35,314	35,859
Residential - Government agency | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities	35,314	35,859
Residential - Government-sponsored enterprises
Assets
Total available-for-sale securities	727,417	738,113
Residential - Government-sponsored enterprises | Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities	727,417	738,113
Residential - Government-sponsored enterprises | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities	727,417	738,113
Commercial - Government agency
Assets
Total available-for-sale securities	195,766	196,125
Commercial - Government agency | Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities	195,766	196,125
Commercial - Government agency | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities	195,766	196,125
Commercial - Government-sponsored enterprises
Assets
Total available-for-sale securities	44,012	44,908
Commercial - Government-sponsored enterprises | Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities	44,012	44,908
Commercial - Government-sponsored enterprises | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities	44,012	44,908
Commercial - Non-agency | Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities	22,005	22,083
Commercial - Non-agency | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities	22,005	22,083
Government agency
Assets
Total available-for-sale securities	391,674	397,124
Government agency | Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities	391,674	397,124
Government agency | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities	391,674	397,124
Government-sponsored enterprises
Assets
Total available-for-sale securities	305,737	310,682
Government-sponsored enterprises | Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities	305,737	310,682
Government-sponsored enterprises | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities	305,737	310,682
Collateralized loan obligations | Fair Value, Measurements, Recurring
Assets
Total available-for-sale securities	136,503	173,475
Collateralized loan obligations | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Total available-for-sale securities	$ 136,503	$ 173,475