CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 30, 2021	Oct. 31, 2020	Oct. 30, 2021	Oct. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 197,330	$ 31,850	$ 541,233	$ (138,691)
Other comprehensive income:
Amortization of retirement plan and other retiree benefit adjustments (net of tax of $168, $138, $505 and $414, respectively)	528	430	1,585	1,291
Comprehensive income (loss)	$ 197,858	$ 32,280	$ 542,818	$ (137,400)