Loans Receivable, Net - Summary of Loans Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Summary of Loans Receivable
Loans receivable	$ 17,218,518	$ 17,261,849
Allowance for credit losses	(210,400)	(206,041)	$ (198,779)	$ (192,757)
Loans receivable, net	17,008,118	17,055,808
Net deferred origination fees included in loans receivable	(29,557)	(29,187)
Net purchase accounting discounts included in loans receivable	(31,218)	(34,361)
Accrued interest receivable on loans	76,596	73,935
Residential real estate
Summary of Loans Receivable
Loans receivable	1,850,079	1,858,929
Allowance for credit losses	(26,595)	(25,181)	(24,166)	(22,325)
Commercial real estate
Summary of Loans Receivable
Loans receivable	10,952,809	10,963,713
Allowance for credit losses	(140,369)	(138,545)	(135,153)	(130,924)
Other commercial
Summary of Loans Receivable
Loans receivable	3,121,477	3,119,535
Allowance for credit losses	(25,642)	(24,400)	(22,094)	(21,194)
Home equity
Summary of Loans Receivable
Loans receivable	920,132	930,994
Allowance for credit losses	(11,348)	(11,402)	(10,999)	(11,766)
Other consumer
Summary of Loans Receivable
Loans receivable	374,021	388,678
Allowance for credit losses	$ (6,446)	$ (6,513)	$ (6,367)	$ (6,548)