XML 90 R68.htm IDEA: XBRL DOCUMENT v3.22.4
LOANS, ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Details Textual) - USD ($)
 12 Months Ended
Nov. 12, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Receivables [Abstract]          
Days To Be Termed As Non Accrual Loans   90 days      
Tdrs Recorded Investment On Nonaccrual Status   $ 11,520,000 $ 1,993,000    
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, before Allowance for Credit Loss   13,928,675,000 13,587,286,000    
Financing Receivable, Allowance for Credit Losses, Effect of Change in Method       $ (1,137,000)  
Financing Receivable, Credit Loss, Expense (Reversal)   6,500,000 18,205,000 52,500,000  
Financing Receivable, Allowance for Credit Loss   152,419,000 146,922,000 113,392,000 $ 67,740,000
Financing Receivable, Allowance for Credit Losses, Purchased with Credit Deterioration       $ 1,200,000  
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans with active Deferrals   55,600,000 383,100,000    
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)   (5,500,000)      
Off-Balance Sheet, Credit Loss, Liability   $ 1,300,000 1,500,000    
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) by percentage   3.70%      
Financing Receivable, Unamortized Loan Cost (Fee)   $ 5,000,000 (159,000)    
Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount)   (10,400,000) (10,400,000)    
US Government Insured Loan Program [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, before Allowance for Credit Loss   $ 9,100,000 $ 216,200,000    
Blue Hills Bancorp, Inc. [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Credit Loss, Expense (Reversal) $ 50,700,000