XML 115 R70.htm IDEA: XBRL DOCUMENT v3.22.0.1
Loans and Leases Receivable and Allowance for Credit Losses on Loans and Leases - Additional Information (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
Loan
Commitment
Dec. 31, 2020
USD ($)
Commitment
Dec. 31, 2021
USD ($)
Loan
Commitment
Dec. 31, 2020
USD ($)
Commitment
Loan
Dec. 31, 2019
USD ($)
Loan
Commitment
Jan. 01, 2020
USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]            
Accrued interest $ 81,600 $ 76,600 $ 81,600 $ 76,600    
Financing receivable, excluding accrued interest, after allowance for credit loss 14,414,827 15,608,989 $ 14,414,827 15,608,989    
Loans held for sale, average life from purchase to sale (days)     30 days      
Loans and leases receivable 9,018,298 7,575,368 $ 9,018,298 7,575,368    
Interest income     736,822 512,048 $ 431,491  
Financing receivable, allowance for credit loss, excluding accrued interest 137,804 144,176 137,804 144,176 56,379 $ 136,200
Allowance for credit loss, period increase (decrease)     (6,400) 8,000    
Troubled debt restructurings $ 16,500 $ 16,100 $ 16,500 $ 16,100 $ 13,300  
Minimum performance requirement (months)     6 months      
Contractual terms for loans (months)     6 months      
Number of loans | Loan     202 121 28  
Commitments to lend additional funds to debtors | Commitment 0 0 0 0 0  
Purchased-credit-impaired loans $ 9,900 $ 13,400        
Loans pledged as collateral 3,700,000 8,500,000 $ 3,700,000 $ 8,500,000    
Troubled Debt Restructurings            
Financing Receivable, Troubled Debt Restructuring [Line Items]            
Contractual terms for loans (months)     9 months      
Small Business Administration (SBA), CARES Act, Paycheck Protection Program            
Financing Receivable, Troubled Debt Restructuring [Line Items]            
Loans and leases receivable $ 3,300,000 4,600,000 $ 3,300,000 4,600,000    
Interest income     $ 279,200 65,500    
Collateral-dependent loans            
Financing Receivable, Troubled Debt Restructuring [Line Items]            
Number of loans | Loan 2   2      
Commercial real estate non-owner occupied            
Financing Receivable, Troubled Debt Restructuring [Line Items]            
Amount deferred, CARES Act $ 0 202,100 $ 0 202,100    
Consumer loans            
Financing Receivable, Troubled Debt Restructuring [Line Items]            
Amount deferred, CARES Act 6,100 16,400 $ 6,100 $ 16,400    
Principal Forgiveness            
Financing Receivable, Troubled Debt Restructuring [Line Items]            
Number of loans | Loan     0 0 0  
Commercial Real Estate | Commercial and industrial | Collateral-dependent loans            
Financing Receivable, Troubled Debt Restructuring [Line Items]            
Financing receivable, excluding accrued interest, after allowance for credit loss $ 38,900 59,500 $ 38,900 $ 59,500    
Government-Guaranteed Collateral | Small Business Administration (SBA), CARES Act, Paycheck Protection Program            
Financing Receivable, Troubled Debt Restructuring [Line Items]            
Loans pledged as collateral   $ 4,600,000   $ 4,600,000