Loans Receivable, Net - Schedule of Loans Receivable, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	$ 10,125,648	$ 10,194,595
Deferred origination costs, net of fees	9,734	9,263
Allowance for loan credit losses	(67,173)	(67,137)	$ (60,195)	$ (56,824)
Total loans receivable, net	10,068,209	10,136,721
Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	6,914,513	6,964,397
Commercial | Commercial real estate – investor
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	5,322,755	5,353,974
Commercial | Commercial real estate – owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	914,582	943,891
Commercial | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	677,176	666,532
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	3,211,135	3,230,198
Allowance for loan credit losses	(1,187)	(988)	$ (873)	$ (1,106)
Consumer | Residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	2,965,276	2,979,534
Consumer | Home equity loans and lines and other consumer (“other consumer”)
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	$ 245,859	$ 250,664