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PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - SCHEDULE OF DEFINED BENEFIT OBLIGATIONS, PLAN ASSETS AND FUNDED STATUS (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Amounts recognized in the Consolidated Balance Sheets:      
Pension $ 71,618 $ 8,308  
Amounts recognized in Accumulated Other Comprehensive Income (Loss), net of tax:      
Net amounts recognized in AOCI 116,381 194,205  
Pension Benefits       
Change in benefit obligation      
Projected benefit obligation at beginning of year 1,168,838 1,105,206  
Service cost 21,361 21,734 $ 20,878
Interest cost 18,320 26,112 35,756
Actuarial (gain) loss (33,984) 90,140  
Settlement (75,985) (52,938)  
Currency translation and other 619 1,822  
Benefits paid (22,989) (23,238)  
Projected benefit obligation at end of year 1,076,180 1,168,838 1,105,206
Change in plan assets      
Fair value of plan assets at beginning of year 1,100,245 1,053,438  
Actual return on plan assets 68,361 118,812  
Employer contributions 28,220 2,862  
Settlement (75,985) (52,938)  
Currency translation and other 339 1,309  
Benefits paid (22,989) (23,238)  
Fair value of plan assets at end of year 1,098,191 1,100,245 1,053,438
Funded status at end of year 22,011 (68,593)  
Amounts recognized in the Consolidated Balance Sheets:      
Pension 71,618 8,308  
Accrued liabilities (12,584) (6,174)  
Other long-term liabilities (37,023) (70,727)  
Total 22,011 (68,593)  
Amounts recognized in Accumulated Other Comprehensive Income (Loss), net of tax:      
Actuarial net (loss) gain (132,917) (205,193)  
Net prior service credit 15,399 21,706  
Net amounts recognized in AOCI (117,518) (183,487)  
Other Benefits       
Change in benefit obligation      
Projected benefit obligation at beginning of year 243,308 230,457  
Service cost 1,879 159 151
Interest cost 3,857 6,029 7,837
Actuarial (gain) loss (14,787) 15,218  
Settlement 0 0  
Currency translation and other 113 254  
Benefits paid (22,880) (8,809)  
Projected benefit obligation at end of year 211,490 243,308 230,457
Change in plan assets      
Fair value of plan assets at beginning of year 0 0  
Actual return on plan assets 0 0  
Employer contributions 22,880 8,809  
Settlement 0 0  
Currency translation and other 0 0  
Benefits paid (22,880) (8,809)  
Fair value of plan assets at end of year 0 0 $ 0
Funded status at end of year (211,490) (243,308)  
Amounts recognized in the Consolidated Balance Sheets:      
Pension 0 0  
Accrued liabilities (17,886) (19,801)  
Other long-term liabilities (193,604) (223,507)  
Total (211,490) (243,308)  
Amounts recognized in Accumulated Other Comprehensive Income (Loss), net of tax:      
Actuarial net (loss) gain 1,137 (10,718)  
Net prior service credit 0 0  
Net amounts recognized in AOCI $ 1,137 $ (10,718)