Other Postretirement Benefit Plans - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
Amortization:
Other components of net periodic benefit cost (income)	$ 128	$ (670)	$ (395)
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	111	89	89
Interest cost	102	124	151
Amortization:
Prior service cost	(322)	(921)	(921)
Losses	348	128	22
Net amortization	26	(793)	(899)
Other components of net periodic benefit cost (income)	128	(669)	(748)
Net Periodic Benefit Cost (Income)	$ 239	$ (580)	$ (659)