XML 167 R108.htm IDEA: XBRL DOCUMENT v3.20.4
EMPLOYEE AND POSTRETIREMENT BENEFIT PLANS - Profit Sharing and Deferred Compensation Plans (Details)
 12 Months Ended
Dec. 31, 2020
USD ($)
shares
Jul. 01, 2020
USD ($)
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Defined Contribution Plan Disclosure [Line Items]        
Matching contributions     $ 1,050,000 $ 891,000
Employee Stock Ownership Plan (ESOP), Diversification Feature, Age Requirement 55   55  
Deferred Compensation Arrangement with Individual, Requisite Service Period     10 years  
Employee Stock Ownership Plan (ESOP), Diversification Feature Percentage 50.00%   50.00%  
Employee Stock Ownership Plan (ESOP), Policy Diversification Feature Term     6 years  
Employee Stock Ownership Plan (ESOP), Shares Repurchased | shares     0 0
Employee Stock Ownership Plan (ESOP), Shares in ESOP, Total | shares 481,478   481,478 473,171
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP     $ 912,000 $ 718,000
Deferred Compensation Arrangement with Individual, Compensation Expense   $ 366,000    
Pension and Other Postretirement Benefits Cost (Reversal of Cost), Total     7,463,000 5,837,000
Deferred Compensation, Monthly Payments To Be Made To Executives Or His Heirs   $ 1,000,000    
Deferred Compensation Arrangement with Individual, Maximum Contractual Term   10 years    
Deferred Compensation Arrangement with Individual, Recorded Liability   $ 499,000    
Deferred Compensation Liability Discount Rate 1.50% 1.50%    
Deferred Compensation Liability, Current and Noncurrent $ 865,000   865,000  
Merger Related Expenses [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Deferred Compensation Arrangement with Individual, Compensation Expense   $ 360,000    
Pension And Other Employee Benefits Expenses [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Deferred Compensation Arrangement with Individual, Compensation Expense   $ 6,000    
Officers Nonqualified Deferred Compensation Arrangement [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Deferred Compensation Arrangement with Individual, Compensation Expense     $ 286,000 $ 251,000