Loans Receivable, Net - Schedule of Loans Receivable, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	$ 10,019,328		$ 10,194,595
Deferred origination costs, net of fees	10,628		9,263
Allowance for loan credit losses	(68,839)	$ (67,173)	(67,137)	$ (61,791)	$ (60,195)	$ (56,824)
Total loans receivable, net	9,961,117		10,136,721
Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	6,799,104		6,964,397
Commercial | Commercial real estate – investor
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	5,324,994		5,353,974
Commercial | Commercial real estate – owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	857,710		943,891
Commercial | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	616,400		666,532
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	3,220,224		3,230,198
Allowance for loan credit losses	(1,307)	$ (1,187)	(988)	$ (871)	$ (873)	$ (1,106)
Consumer | Residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans receivable	2,977,698		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	$ 242,526		$ 250,664