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Benefit Plans (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Aug. 01, 2020
Aug. 03, 2019
Aug. 01, 2020
Aug. 03, 2019
Retirement Benefits, Description [Abstract]        
Employer contributions to pension plan $ 1,400   $ 2,800  
Employer contributions to pension plan 1,400   2,800  
Components of net periodic benefit costs:        
Service cost 1,090 $ 905 2,180 $ 1,810
Interest cost 1,536 1,917 3,072 3,834
Net actuarial loss 568 0 1,137 0
Net periodic benefit costs 3,194 2,822 6,389 5,644
Defined Benefit Plan, Expected Future Benefit Payment, Remainder of Year 2,700   2,700  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Employer contributions to pension plan 1,400   2,800  
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]        
Components of net periodic benefit costs:        
Net actuarial loss $ 568 $ 0 $ 1,137 $ 0