Fair Value Measurements - Details of Impairment of Long-Lived Assets (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020 USD ($) store	Nov. 02, 2019 store	Oct. 31, 2020 USD ($) store	Nov. 02, 2019 store
Fair Value Disclosures [Abstract]
Carrying value of assets with impairment | $	$ 26		$ 929
Fair value of assets impaired | $	$ 0		$ 0
Number of stores tested for impairment | store	34	3	52	4
Number of stores with impairment | store	2	0	12	0