XML 113 R98.htm IDEA: XBRL DOCUMENT v3.20.4
Changes in Benefit Obligation and Plan Assets in Defined Benefit Plan (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 28, 2020
Dec. 30, 2019
Dec. 31, 2018
Change in Plan Assets      
Employer contributions $ 23,146 $ 31,253 $ 33,106
Defined Benefit Plan      
Change in Benefit Obligations      
Benefit obligation at beginning of year (30,600) (27,661) (27,525)
Service cost   (397) (292)
Interest cost (907) (1,109) (758)
Amendments/curtailments/special termination   1,636  
Actuarial (loss) gain (3,146) (4,174) 264
Benefits paid 1,183 1,105 650
Benefit obligation at end of year (33,470) (30,600) (27,661)
Accumulated benefit obligation at end of year 33,470 30,600 26,191
Change in Plan Assets      
Fair value of plan assets at beginning of year 21,287 18,251 19,643
Actual return on plan assets 2,704 3,346 (1,021)
Employer contributions 676 795 279
Benefits paid (1,183) (1,105) (650)
Fair value of plan assets at end of year 23,484 21,287 18,251
Unfunded status (9,986) (9,313) (9,410)
Net amount recognized $ (9,986) $ (9,313) $ (9,410)