XML 110 R91.htm IDEA: XBRL DOCUMENT v3.22.4
Savings Plan (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 1998
Dec. 31, 1997
Savings Plan [Line Items]          
Charges recognized $ 3,900,000 $ 3,300,000 $ 4,000,000    
Number of common stock purchased       7,200 46,671
Amount of common stock purchased       $ 200,000 $ 1,000,000
Nonqualified Plan [Member]          
Savings Plan [Line Items]          
Liability under the restoration plan $ 700,000 $ 700,000      
Liability under the restoration plan, shares 70,266 56,570      
Savings Plan          
Savings Plan [Line Items]          
Employee contribution to savings plan $ 1        
Defined Contribution Plan Employer Employee Contribution $ 1        
Maximum matching contribution 5.00%        
Percentage of enrollment of base pay 3.00%