XML 122 R106.htm IDEA: XBRL DOCUMENT v3.22.0.1
Benefit Plans - Summary of Defined Benefit Plan, Plan Assets, Allocation (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Target Allocation, Percentage 100.00%    
Target Allocation   $ 4,756 $ 4,089
Common stock      
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Target Allocation, Percentage 35.00%    
Target Allocation   1,562 1,748
Mutual funds      
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Target Allocation, Percentage 25.00%    
Target Allocation   2,202 856
Corporate/government bonds      
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Target Allocation, Percentage 40.00%    
Target Allocation   982 1,473
Cash and cash equivalents      
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Target Allocation, Percentage 0.00%    
Target Allocation   $ 10 $ 12