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Pension Plans and Other Retirement Benefits - Financial Information Related to Funded Defined Benefit Pension Plan and Unfunded Supplemental Pension Plan (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Oct. 30, 2021
Oct. 31, 2020
Oct. 30, 2021
Oct. 31, 2020
Funded Plan        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 11,900 $ 12,512 $ 36,837 $ 37,592
Interest cost 13,073 12,620 39,073 37,658
Expected return on plan assets (24,017) (22,264) (72,001) (66,748)
Amortization of net actuarial loss and prior service cost 3,358 6,028 10,858 17,046
Total expense 4,314 8,896 14,767 25,548
Unfunded Plan        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 309 404 1,819 1,822
Interest cost 764 860 2,324 2,462
Expected return on plan assets 0 0 0 0
Amortization of net actuarial loss and prior service cost 1,076 1,394 3,385 3,462
Total expense $ 2,149 $ 2,658 $ 7,528 $ 7,746