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Changes in Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2020
Nov. 02, 2019
Oct. 31, 2020
Nov. 02, 2019
Changes in accumulated other comprehensive loss        
Beginning balance     $ 31,059  
Net other comprehensive income $ (430)   (1,291)  
Ending balance 29,768 $ 12,809 29,768 $ 12,809
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]        
Changes in accumulated other comprehensive loss        
Beginning balance 30,198 12,809 31,059 12,809
Amounts reclassified from AOCL (430) 0 (1,291) 0
Ending balance $ 29,768 $ 12,809 $ 29,768 $ 12,809