(Loss) Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	May 02, 2020	May 04, 2019
Earnings Per Share [Abstract]
Net (loss) income	$ (143,422)	$ 57,525
Weighted average common shares outstanding - basic	83,734	92,887
Dilutive effect of stock-based awards (in shares)	0	1,501
Dilutive effect of Convertible Senior Notes and warrants	0	0
Diluted (in shares)	83,734	94,388
(Loss) earnings per common share - basic (in dollars per share)	$ (1.71)	$ 0.62
(Loss) earnings per common share - diluted (in dollars per share)	$ (1.71)	$ 0.61
Anti-dilutive stock-based awards excluded from diluted calculation (in shares)	7,800	3,200