Loans Receivable, Net - Schedule of Aging of Recorded Investment in Past Due Loans by Loan Portfolio Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Past Due [Line Items]
Total loans	$ 10,557,983	$ 10,118,072
Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	47,913	57,385
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	14,040	25,146
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	5,777	11,404
90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans	28,096	20,835
Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans	10,510,070	10,060,687
Commercial real estate – investor
Financing Receivable, Past Due [Line Items]
Total loans	5,211,220	5,287,683
Commercial real estate – investor \| Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	24,800	24,381
Commercial real estate – investor \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	4,126	4,624
Commercial real estate – investor \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2,161	8,880
Commercial real estate – investor \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans	18,513	10,877
Commercial real estate – investor \| Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans	5,186,420	5,263,302
Commercial and industrial: \| Total commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	1,995,982	1,550,164
Commercial and industrial: \| Commercial and industrial – real estate
Financing Receivable, Past Due [Line Items]
Total loans	997,122	902,219
Commercial and industrial: \| Commercial and industrial - non-real estate
Financing Receivable, Past Due [Line Items]
Total loans	998,860	647,945
Commercial and industrial: \| Total Past Due \| Total commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	10,548	2,352
Commercial and industrial: \| Total Past Due \| Commercial and industrial – real estate
Financing Receivable, Past Due [Line Items]
Total loans	4,860	2,333
Commercial and industrial: \| Total Past Due \| Commercial and industrial - non-real estate
Financing Receivable, Past Due [Line Items]
Total loans	5,688	19
Commercial and industrial: \| 30-59 Days Past Due \| Total commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	6,198	944
Commercial and industrial: \| 30-59 Days Past Due \| Commercial and industrial – real estate
Financing Receivable, Past Due [Line Items]
Total loans	925	941
Commercial and industrial: \| 30-59 Days Past Due \| Commercial and industrial - non-real estate
Financing Receivable, Past Due [Line Items]
Total loans	5,273	3
Commercial and industrial: \| 60-89 Days Past Due \| Total commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	89	0
Commercial and industrial: \| 60-89 Days Past Due \| Commercial and industrial – real estate
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Commercial and industrial: \| 60-89 Days Past Due \| Commercial and industrial - non-real estate
Financing Receivable, Past Due [Line Items]
Total loans	89	0
Commercial and industrial: \| 90 Days or Greater Past Due \| Total commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	4,261	1,408
Commercial and industrial: \| 90 Days or Greater Past Due \| Commercial and industrial – real estate
Financing Receivable, Past Due [Line Items]
Total loans	3,935	1,392
Commercial and industrial: \| 90 Days or Greater Past Due \| Commercial and industrial - non-real estate
Financing Receivable, Past Due [Line Items]
Total loans	326	16
Commercial and industrial: \| Loans Not Past Due \| Total commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	1,985,434	1,547,812
Commercial and industrial: \| Loans Not Past Due \| Commercial and industrial – real estate
Financing Receivable, Past Due [Line Items]
Total loans	992,262	899,886
Commercial and industrial: \| Loans Not Past Due \| Commercial and industrial - non-real estate
Financing Receivable, Past Due [Line Items]
Total loans	993,172	647,926
Residential real estate
Financing Receivable, Past Due [Line Items]
Total loans	3,135,200	3,049,763
Residential real estate \| Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	9,006	27,311
Residential real estate \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2,100	18,518
Residential real estate \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2,994	2,242
Residential real estate \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans	3,912	6,551
Residential real estate \| Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans	3,126,194	3,022,452
Other consumer
Financing Receivable, Past Due [Line Items]
Total loans	215,581	230,462
Other consumer \| Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	3,559	3,341
Other consumer \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	1,616	1,060
Other consumer \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	533	282
Other consumer \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans	1,410	1,999
Other consumer \| Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans	$ 212,022	$ 227,121