Loans Receivable, Net - Schedule of Aging of Recorded Investment in Past Due Loans by Loan Portfolio Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Total loans receivable	$ 10,125,648	$ 10,194,595
Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	39,756	40,088
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	16,868	17,206
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	666	1,996
90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	22,222	20,886
Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	10,085,892	10,154,507
Commercial real estate – investor
Financing Receivable, Past Due [Line Items]
Total loans receivable	5,322,755	5,353,974
Estimated realizable value	8,800	8,800
Commercial real estate – investor | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	20,750	16,863
Commercial real estate – investor | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	4,746	978
Commercial real estate – investor | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	0	684
Commercial real estate – investor | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	16,004	15,201
Commercial real estate – investor | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	5,302,005	5,337,111
Commercial real estate – owner occupied
Financing Receivable, Past Due [Line Items]
Total loans receivable	914,582	943,891
Commercial real estate – owner occupied | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	1,217	980
Commercial real estate – owner occupied | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	531	335
Commercial real estate – owner occupied | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	368	352
Commercial real estate – owner occupied | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	318	293
Commercial real estate – owner occupied | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	913,365	942,911
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans receivable	677,176	666,532
Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	570	308
Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	3	163
Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	0	0
Commercial and industrial | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	567	145
Commercial and industrial | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	676,606	666,224
Residential real estate
Financing Receivable, Past Due [Line Items]
Total loans receivable	2,965,276	2,979,534
Residential real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	14,535	18,671
Residential real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	10,793	14,858
Residential real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	0	402
Residential real estate | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	3,742	3,411
Residential real estate | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	2,950,741	2,960,863
Other Consumer
Financing Receivable, Past Due [Line Items]
Total loans receivable	245,859	250,664
Other Consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	2,684	3,266
Other Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	795	872
Other Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	298	558
Other Consumer | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	1,591	1,836
Other Consumer | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Total loans receivable	$ 243,175	$ 247,398