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RETIREMENT AND OTHER BENEFIT PLANS - Amounts in Accumulated Other Comprehensive Loss and Expected Amortization (Details) - USD ($)
$ in Thousands
Jan. 30, 2021
Feb. 01, 2020
Pension Plan    
Retirement and Other Benefit Plans    
Net actuarial loss (gain) $ 10,438 $ 33,771
Net prior service credit (947) (2,093)
Accumulated other comprehensive loss, net of tax 9,491 31,678
Other Postretirement Benefits Plan    
Retirement and Other Benefit Plans    
Net actuarial loss (gain) (466) (507)
Accumulated other comprehensive loss, net of tax $ (466) $ (507)