XML 70 R59.htm IDEA: XBRL DOCUMENT v3.22.2
Employee Benefit Plans (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Defined Benefit Plan, Unfunded Plan          
Payment for Pension and Other Postretirement Benefits [Abstract]          
Defined Benefit Plan, Funded (Unfunded) Status of Plan $ 29,000   $ 29,000   $ 20,000
Defined Benefit Pension Plans          
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]          
Defined Benefit Plan, Service Cost 982 $ 1,260 1,964 $ 2,519  
Interest cost 2,704 2,328 5,409 4,656  
Expected return on plan assets (4,630) (5,219) (9,261) (10,438)  
Prior service cost (benefit) (17) 0 (34) 0  
Net loss (gain) 1,523 1,829 3,046 3,658  
Net periodic benefit cost 562 198 1,124 395  
Payment for Pension and Other Postretirement Benefits [Abstract]          
Contributions by Employer     0    
Estimated Future Employer Contributions in Current Fiscal Year 0   0    
Estimated Future Employer Contributions in Next Fiscal Year 0   0    
Supplemental Non-qualified Defined Benefit and Defined Contribution Plans          
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]          
Defined Benefit Plan, Service Cost (1,355) 1,020 (1,747) 1,713  
Interest cost 209 177 417 354  
Expected return on plan assets 0 0 0 0  
Prior service cost (benefit) 0 0 0 0  
Net loss (gain) 69 438 138 877  
Net periodic benefit cost (1,077) 1,635 (1,192) 2,944  
Payment for Pension and Other Postretirement Benefits [Abstract]          
Contributions by Employer     1,078    
Estimated Future Employer Contributions in Current Fiscal Year 1,078   1,078    
Estimated Future Employer Contributions in Next Fiscal Year 2,215   2,215    
Other Postretirement Benefits Plan          
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]          
Defined Benefit Plan, Service Cost 492 559 984 1,118  
Interest cost 321 264 642 529  
Expected return on plan assets (31) (34) (62) (68)  
Prior service cost (benefit) (73) (109) (145) (218)  
Net loss (gain) 16 117 32 234  
Net periodic benefit cost 725 $ 797 1,451 $ 1,595  
Payment for Pension and Other Postretirement Benefits [Abstract]          
Contributions by Employer     2,552    
Estimated Future Employer Contributions in Current Fiscal Year 2,552   2,552    
Estimated Future Employer Contributions in Next Fiscal Year $ 4,761   $ 4,761