v3.26.1
Loans Receivable and Allowance for Credit Losses - Narrative (Details)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
loan
property
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
loan
real_estate
Dec. 31, 2024
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans held-for-sale $ 0   $ 0  
Gain on sale of loans held-for-sale 20,000 $ 515,000    
Loss on sale of loans held-for-sale 0 0    
Purchases of loans receivable 0 20,000,000    
Carrying value of servicing liability $ 485,900,000   494,800,000  
Threshold period, past due status of financial receivables 30 days      
Non-accrual $ 41,400,000   $ 38,000,000.0  
Threshold period, past due for nonperforming status of financial receivables 90 days   90 days  
Financing receivable, excluding accrued interest, 90 days or more past due, still accruing $ 0   $ 0  
Loans receivable 8,259,678,000   $ 8,292,010,000  
Charge-offs $ 79,000 991,000    
Number of real estate acquired through foreclosure | property 1      
Real estate acquired through foreclosure $ 5,900,000      
Number of real estate owned | real_estate     0  
Accrued interest receivable on loans receivable 34,700,000   $ 34,700,000  
Off-balance sheet, credit loss, liability 4,212,000 4,289,000 3,946,000 $ 3,821,000
Provision for credit losses 266,000 468,000    
Financial Asset Acquired with Credit Deterioration        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Charge-offs     3,200,000  
Stewardship Financial Corporation | Financial Asset Acquired with Credit Deterioration        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans receivable 1,100,000   1,100,000  
Freehold Entities | Financial Asset Acquired with Credit Deterioration        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans receivable 40,000   44,000  
RSI Entites | Financial Asset Acquired with Credit Deterioration        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans receivable 8,200,000   8,300,000  
Equipment Finance Loans | Financial Asset Acquired with Credit Deterioration        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans receivable 850,000   1,000,000.0  
Less Than 90 Days        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Non-accrual $ 13,800,000   $ 10,400,000  
Financial receivable, number of loans in nonaccrual status | loan 41   38  
Real estate loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Proceeds from sales of loans held-for-sale $ 252,000 2,000,000.0    
Real estate loans | One-to-four family        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Proceeds from sales of loans held-for-sale   5,200,000    
Charge-offs $ 0 0    
Mortgage loans in process of foreclosure, number of loans | loan 8      
Mortgage loans in process of foreclosure, amount $ 2,400,000      
Real estate loans | Construction        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Proceeds from sales of loans held-for-sale 2,000,000.0      
Purchases of loans receivable 0 20,000,000.0    
Charge-offs 0 53,000    
Commercial business loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Proceeds from sales of loans held-for-sale   5,500,000    
Home equity loans and advances | Home equity loans and advances        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Charge-offs $ 0 $ 0    
Mortgage loans in process of foreclosure, number of loans | loan 4   4  
Mortgage loans in process of foreclosure, amount $ 228,000   $ 585,000  
Home equity loans and advances | Residential Mortgage        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Mortgage loans in process of foreclosure, number of loans | loan     9  
Mortgage loans in process of foreclosure, amount     $ 2,500,000