XML 69 R60.htm IDEA: XBRL DOCUMENT v3.22.2
Pension Benefits and Other Postretirement Benefits (Additional Information) (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
plan
Jun. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Jul. 30, 2020
USD ($)
Oct. 17, 2019
USD ($)
Defined Benefit Plan Disclosure [Line Items]              
Number of qualified noncontributory defined benefit plans | plan     1        
Pension surplus investment balance $ 5,310,000   $ 5,310,000   $ 5,123,000    
Fair Value, Measurements, Recurring              
Defined Benefit Plan Disclosure [Line Items]              
Pension surplus investment 0   0   6,638,000    
Pension Benefits | Merged Plan              
Defined Benefit Plan Disclosure [Line Items]              
Pension surplus investment balance             $ 9,700,000
Contributions 0 $ 0 0 $ 0      
Pension Benefits | Rogers Employee Savings and Investment Plan (RESIP) | Suspense Account Held Within a Trust              
Defined Benefit Plan Disclosure [Line Items]              
Plan assets         $ 9,200,000 $ 9,200,000  
Pension Benefits | Union Plan              
Defined Benefit Plan Disclosure [Line Items]              
Additional contributions required to make for remainder of fiscal year $ 0   $ 0