XML 143 R130.htm IDEA: XBRL DOCUMENT v3.22.0.1
INCOME TAXES - Additional Information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]        
Tax benefit recognized in connection with exercise of SARs $ 2,500,000      
Unused tax credit carryforward 23,000,000 $ 30,200,000    
Valuation allowance 0 0    
Unrecognized tax benefits 925,000 924,000 $ 977,000 $ 1,227,000
Total unrecognized tax benefit that, if recognized, would impact the effective tax rate 699,000      
Accrued penalties and interest 0 0    
Affordable Housing Partnerships        
Operating Loss Carryforwards [Line Items]        
Gross investment in limited partnership 61,300,000      
Unfunded amount in limited partnership 10,300,000      
Balance of investment 39,000,000 43,200,000    
Tax deductions 3,700,000 7,200,000 7,800,000  
Proportional amortization recognized 4,200,000 5,300,000 $ 3,500,000  
Investment Tax Credit Carryforward | Affordable Housing Partnerships        
Operating Loss Carryforwards [Line Items]        
Unused tax credit carryforward 13,200,000 $ 9,000,000    
Domestic Tax Authority        
Operating Loss Carryforwards [Line Items]        
Operating loss carryforwards 821,000      
State and Local Jurisdiction        
Operating Loss Carryforwards [Line Items]        
Operating loss carryforwards $ 34,800,000