XML 199 R155.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Funded Status and Amounts Recognized in Consolidated Balance Sheets (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Change in plan assets:      
Current liability $ (29,380) $ (1,283)  
Noncurrent liability (14,328) (39,149)  
Pension plans      
Change in benefit obligation:      
Benefit obligation at beginning of year 367,778 393,952  
Service cost 703 937 $ 755
Interest cost 11,930 12,513 12,852
Actuarial loss 45,979 9,098  
Benefits paid (29,484) (23,843)  
Settlements   (24,879)  
Benefit obligation at end of year 396,906 367,778 393,952
Change in plan assets:      
Fair value of plan assets at beginning of year 335,540 340,854  
Actual return on plan assets 51,848 2,437 42,100
Employer contribution 2,771 40,971 1,891
Benefits paid (29,484) (23,843)  
Settlements   (24,879)  
Fair value of plan assets at end of year 360,675 335,540 340,854
Fair value of plan assets at end of year 360,675 335,540 340,854
Benefit obligation at end of year 396,906 367,778 393,952
Unfunded status and amount recognized at end of year (36,231) (32,238)  
Current liability (28,711) (258)  
Noncurrent liability (7,520) (31,980)  
Amount recognized at end of year (36,231) (32,238)  
Net actuarial (gain) loss before taxes 142,082 137,903  
Prior service cost before taxes 4,653 5,039  
Amounts recognized in accumulated other comprehensive income (loss) 146,735 142,942  
Accumulated benefit obligation at end of year 395,676 366,709  
Postretirement Benefit Plans      
Change in benefit obligation:      
Benefit obligation at beginning of year 8,194 7,943  
Service cost 283 288 256
Interest cost 297 234 227
Participant contributions 662 823 300
Actuarial loss (575) 1,037  
Benefits paid (1,384) (2,131)  
Benefit obligation at end of year 7,477 8,194 7,943
Change in plan assets:      
Employer contribution 722 1,308  
Benefits paid (1,384) (2,131)  
Participant contributions 662 823 300
Benefit obligation at end of year 7,477 8,194 $ 7,943
Unfunded status and amount recognized at end of year (7,477) (8,194)  
Current liability (669) (1,025)  
Noncurrent liability (6,808) (7,169)  
Amount recognized at end of year (7,477) (8,194)  
Net actuarial (gain) loss before taxes (2,677) (2,379)  
Prior service cost before taxes (9) (50)  
Amounts recognized in accumulated other comprehensive income (loss) $ (2,686) $ (2,429)