Loans Receivable and Allowance for Credit Losses - Schedule Of Amortized Cost Of Loans On Nonaccrual Status With No Related Allowance For Loan Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related ALLL	$ 73,874	$ 116,776
Commercial lending
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related ALLL	61,882	95,117
Commercial lending | C&I
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related ALLL	33,625	79,591
Commercial lending | CRE
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related ALLL	19,360	0
Commercial lending | Multifamily residential
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related ALLL	0	4,210
Commercial lending | Construction and land
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related ALLL	8,897	11,316
Consumer lending
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related ALLL	11,992	21,659
Consumer lending | Single-family residential
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related ALLL	7,195	6,279
Consumer lending | Home equity lines of credit (“HELOCs”)
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans with no related ALLL	$ 4,797	$ 15,380